Bulletin 937 Intrinsic Safety Modules · 2017. 12. 6. · 937 Intrinsic Safety Isolated Barriers Rockwell Automation Publication 937-SG001C-EN-P — January 2015 7 2-ch, 230V AC Features

Intrinsic Safety Modules

Selection Guide

Rockwell Automation Publication 937-SG001C-EN-P —January 20152

Table of Contents

Isolated Barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Switch Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Solenoid Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

SMART Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Temperature Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

SMART Current Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Converter Barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Universal Temperature Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Frequency Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Transmitter Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

HART Loop Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Strain Gauge Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Zener Barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

1-channel, 327 Ohm Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

2-channel, 327 Ohm Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

2-channel, 646 Ohm Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

2-channel, 36 Ohm + 0.9 V Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

2-channel, 250 Ohm Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Power Feed Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Power Rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

USB Interface Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Rockwell Automation Publication 937-SG001C-EN-P — January 2015 3

Isolated Barriers

Switch AmplifiersSwitch Amplifiers are used to transferdigital signals (NAMURsensors/mechanical contacts) from ahazardous area to a safe area. Selectmodules are available with relayoutput or transistor output, inaddition to signal splitters. A uniquecollective error messaging feature isavailable when used with the PowerRail system. Due to its compacthousing design and low heatdissipation, this device is useful fordetecting positions, end stops, andswitching states in space-criticalapplications.

SMART Transmitter Power Supplies SMART Transmitter Power Suppliessupply 2-wire SMART transmitters in ahazardous area, and can also be usedwith 2-wire SMART current sources.They transfer the analog input signalto the safe area as an isolated currentvalue. Modules with splitter featureprovide two isolated output signals.

Temperature Repeaters Temperature Repeaters transfer RTDresistance values from hazardousareas to safe areas. A 2-, 3-, or 4-wiremode is available depending on therequired accuracy. The monitorregisters the same load as if it wereconnected directly to the resistancein a hazardous area.

SMART Current DriversSMART Current Drivers drive SMART I/Pconverters, electrical valves, andpositioners in hazardous areas.

Solenoid DriversSolenoid Drivers supply power tosolenoids, LEDs, and audible alarmslocated in a hazardous area.

With galvanic optical or transformer isolation, these modules provide an interface within the intrinsic safety circuit thatis electrically separated from the control system. A key advantage of isolated barriers is that they do not require aground between the module and the intrinsically safe device. Available in 12.5 mm (0.5 in) and 20mm (0.8 in) widths.

937 Intrinsic Safety Isolated Barriers

Rockwell Automation Publication 937-SG001C-EN-P — January 20154

aModule Profile

Code DescriptionH High-density 12.5mm module

S Standard 20 mm module

bI/O Type

Code DescriptionDI Digital In

DO Digital Out

AI Analog In

AO Analog Out

cFunctionality

Code DescriptionSAR Switch Amplifier with Relay Output

SRS Switch Amplifier with Relay Output, Splitter

SAT Switch Amplifier withTransistor Output

STS Switch Amplifier with Transistor Output, Splitter

SNDSolenoid Driver

TXP SMART Transmitter, Power Supply

TXS SMART Transmitter, Power Supply, Splitter

RRP Repeater, Resistance Measuring

SCD SMART Current Driver

dPower

Code DescriptionIP Input Loop Powered

DC 24V DC

BC 20...90V DC/48...253V AC

KD 115V AC

KF 230V AC

937T H – DI SAR - KD 1a b c - d e

eChannels

Code Description1 Single Channel

2 Dual Channel

Catalog Number Explanation

Note: Examples given in this section are for reference purposes. This basic explanation should not be used for product selection; some combinations may not produce a valid catalog number.



2-ch, 115V AC

Features

� 2-channel isolated barrier� 115V AC supply� Dry contact or NAMUR inputs� Relay contact output� Line fault detection (LFD)� Reversible mode of operation� Up to SIL2 acc. to IEC 61508/IEC 61511

This isolated barrier is used for intrinsic safety applications. Ittransfers digital signals (NAMUR sensors/mechanicalcontacts) from a hazardous area to a safe area. The proximitysensor or switch controls a form C changeover relay contactfor the safe area load. The normal output state can bereversed using switches S1 and S2. Switch S3 is used toenable or disable line fault detection of the field circuit.During an error condition, the relays revert to their de-energized state and the LEDs indicate the fault according toNAMUR NE44.

Specifications

SupplyConnection terminals 14, 15

Rated voltage 103.5 ... 126V AC , 45 ... 65 Hz

Power loss 1.2 W

Power consumption ≤ 1.3 WInput

Connection terminals 1+, 2+, 3-; 4+, 5+, 6-

Rated values acc. to EN 60947-5-6 (NAMUR)

Open circuit voltage/short-circuit current approx. 8V DC / approx. 8 mA

Switching point/switching hysteresis 1.2 ... 2.1 mA / approx. 0.2 mA

Line fault detection breakage I ≤ 0.1 mA, short-circuit I >6 mAPulse/Pause ratio ≥ 20 ms / ≥ 20 ms

Output

Connection output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12

Output I signal ; relay

Output II signal ; relay

Energized/De-energized delay approx. 20 ms/ 20 ms

Mechanical life 107 switching cycles

Transfer characteristicsSwitching frequency ≤ 10 Hz

Electrical isolation

Input/Output reinforced insulation according to IEC/EN61010-1, rated insulation voltage 300 Veff

Input/power supply reinforced insulation according to IEC/EN61010-1, rated insulation voltage 300 Veff

Output/power supply reinforced insulation according to IEC/EN61010-1, rated insulation voltage 300 Veff

Output/Output reinforced insulation according to IEC/EN61010-1, rated insulation voltage 300 Veff

Directive conformityElectromagnetic compatibility

Directive 2004/108/EC EN 61326-1:2006

Low voltage

Directive 2006/95/EC EN 61010-1:2010

Conformity

Electromagnetic compatibility NE 21:2006

Protection degree IEC 60529:2001

Input EN 60947-5-6:2000

Switch Amplifier, Relay Output

937TS-DISAR-KD2



1 34 6

25

13 15129

107

14118

1

2OUT CHK PWR

S2S1

S3

III

Front view

LED yellow:Relay output Ι

LED red:LB/SC channel Ι

LED yellow:Relay output ΙΙ

LED red:LB/SC channel ΙΙ Switch S3

(LB/SC-monitoring)

LED green:Power supply

Removable terminalsblack

Removable terminalsblue

Switch S1(Mode of operation channel Ι)

Switch S2(Mode of operation channel ΙΙ)

Product FeaturesCat. No. 937TS-DISAR-KD2

2+

3-

1+

Zone 0, 1, 2Div. 1, 2

789

101112

I

II

I

II 5+

6-

4+

230 V AC1415

10 k10 k

400 Ω ≤ R ≤ 2 kΩ

10 k10 k

400 Ω ≤ R ≤ 2 kΩ

Wiring DiagramCat. No. 937TS-DISAR-KD2

Configuration

7 8 910 11 12

1 2 34 5 6

13 14 15

1

2PWRCHKOUT

S1S2S3

12

3

12

3

S1

S3

II

S2

I

Switch position

Operating status

Factory settings: switch 1, 2 and 3 in position I

S Function Position

1Mode of operation

Output I (relay)energized

with high input current I

with low input current II

2Mode of operation

Output II (relay)energized



3 Line fault detectionON I

OFF II

Control circuit Input signal

Initiator high impedance /contact opened

low input current

Initiator low impedance /contact closed

high input current

Lead breakagelead short-circuit

Line fault

ConfigurationCat. No. 937TS-DISAR-KD2

20 mm(0.78")

115 mm (4.5'')

==

107

mm

(4.2

1'')

93 m

m (3

.66'

')Approximate DimensionsCat. No. 937TS-DISAR-KD2

2-ch, 115V AC, continuedSwitch Amplifier, Relay Output

937TS-DISAR-KD2Environmental and Mechanical Specifications

Operating temperature -20 ... 60 °C (-4 ... 140 °F)

Protection degree IP20

Weight approx. 150 g

Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in) ,housing type B2

Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001

Data for application in connection with Ex-areas

Group, category, type of protection II (1) G [Ex ia] IIC, II (1) D [Ex ia] IIIC

Input [Ex ia] IIC, [Ex ia] IIIC

Voltage Uo 10.6V

Current Io 19.1 mA

Power Po 51 mW (linear characteristic)

SupplyMaximum safe voltage Um 126.5V AC

Output

Contact loading 253V AC/2 A/cos φ > 0.7;

126.5V AC/4 A/cos φ > 0.7; 40V DC/2 A resistive load

Maximum safe voltage Um 253V AC


Input/Output safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375V

Input/power supply safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375V

Directive conformity

Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007, EN 61241-11:2006

Note: Maximum safe voltage is not rated voltage.



2-ch, 230V AC

Features

This isolated barrier is used for intrinsic safety applications. Ittransfers digital signals (NAMUR sensors/mechanicalcontacts) from a hazardous area to a safe area. The proximitysensor or switch controls a form C changeover relay contactfor the safe area load. The normal output state can bereversed using switches S1 and S2. Switch S3 is used toenable or disable line fault detection of the field circuit.During an error condition, the relays revert to their de-energized state and the LEDs indicate the fault according toNAMUR NE44.

� 2-channel isolated barrier� 230V AC supply� Dry contact or NAMUR inputs� Relay contact output� Line fault detection (LFD)� Reversible mode of operation� Up to SIL2 acc. to IEC 61508/IEC 61511

Specifications

Description 230V AC, 2-channel

Signal Type Digital input, relay output

SupplyConnection terminals 14, 15

Rated voltage 207 ... 253V AC, 45 ... 65 Hz

Power loss 1.2 W


Connection terminals 1+, 2+, 3-; 4+, 5+, 6-




Line fault detection breakage I ≤ 0.1 mA, short-circuit I >6 mA

Pulse/Pause ratio ≥ 20 ms / ≥ 20 msOutput

Connection output I: terminals 7, 8, 9 ;output II: terminals 10, 11, 12







Input/Output reinforced insulation according to IEC/EN61010-1, rated insulation voltage 300 Veff

Input/power supply reinforced insulation according to IEC/EN61010-1, rated insulation voltage 300 Veff

Output/power supply reinforced insulation according to IEC/EN61010-1, rated insulation voltage 300 Veff

Output/Output reinforced insulation according to IEC/EN61010-1, rated insulation voltage 300 Veff

Directive conformityElectromagnetic compatibility

Directive 2004/108/EC EN 61326-1:2006

Low voltage

Directive 2006/95/EC EN 61010-1:2010

Conformity



Input EN 60947-5-6:2000


937TS-DISAR-KF2



Environmental and Mechanical SpecificationsOperating temperature -20 ... 60 °C (-4 ... 140 °F)



Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in),housing type B2


Data for application in connection with Ex-areasGroup, category, type of protection Ex II (1) G [Ex ia] IIC, II (1) D [Ex ia] IIIC


Voltage Uo 10.6 V

Current Io 19.1 mA


Supply


Output

Contact loading 253V AC/2 A/cosφ > 0.7;




Input/Output safe electrical isolation acc. to IEC/EN 60079-11,voltage peak value 375V

Input/power supply safe electrical isolation acc. to IEC/EN 60079-11,voltage peak value 375V


Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007 , EN 61241-11:2006

1 34 6

25

13 15129

107

14118

1

2OUT CHK PWR

S2S1

S3

III

Front view

LED yellow:Relay output Ι

LED red:LB/SC channel Ι

LED yellow:Relay output ΙΙ

LED red:LB/SC channel ΙΙ Switch S3

(LB/SC-monitoring)




Switch S1(Mode of operation channel Ι)

Switch S2(Mode of operation channel ΙΙ)

Product FeaturesCat. No. 937TS-DISAR-KF2

2+

3-

1+

Zone 0, 1, 2Div. 1, 2

789

101112

I

II

I

II 5+

6-

4+

230 V AC1415

10 k10 k

400 Ω ≤ R ≤ 2 kΩ

10 k10 k

400 Ω ≤ R ≤ 2 kΩ

Wiring DiagramCat. No. 937TS-DISAR-KF2

Configuration

7 8 910 11 12

1 2 34 5 6

13 14 15

1

2PWRCHKOUT

S1S2S3

12

3

12

3

S1

S3

II

S2

I

Switch position

Operating status


S Function Position

1Mode of operation


with high input curren t I

with low input curren t II

2Mode of operation

Output II (relay)energize

with high input curren t I

with low input curren t II


OFF II


Initiator high impedance /contact opened

low input current

Initiator low impedance /contact closed

high input current

Lead breakagelead short-circuit

Line fault

ConfigurationCat. No. 937TS-DISAR-KF2

20 mm(0.78")

115 mm (4.5'')

==

107

mm

(4.2

1'')

93 m

m (3

.66'

')

Approximate DimensionsCat. No. 937TS-DISAR-KF2

2-ch, 230V AC, continued


937TS-DISAR-KF2



2-ch, 24V DC

Features

� 2-channel isolated barrier� 24V DC supply (Power Rail)� Dry contact or NAMUR inputs� Relay contact output� Line fault detection (LFD)� Housing width 12.5 mm� Up to SIL2 acc. to IEC 61508

This isolated barrier is used for intrinsic safety applications. Ittransfers digital signals (NAMUR sensors/mechanicalcontacts) from a hazardous area to a safe area. The proximitysensor or switch controls a form A normally open relaycontact for the safe area load. The normal output state canbe reversed using switches S1 and S2. Switch S3 is used toenable or disable line fault detection of the field circuit.During an error condition, relays revert to their de-energizedstate and LEDs indicate the fault according to NAMUR NE44.A unique collective error messaging feature is available whenused with the Power Rail system. Due to its compact housingdesign and low heat dissipation, this device is useful fordetecting positions, end stops, and switching states in space-critical applications.

Specifications

Description 24V, 2-channel

Signal Type Digital Input

Supply

Connection Power Rail or terminals 9+, 10-

Rated voltage 19 ... 30V DC

Ripple ≤ 10%Rated current ≤ 30 mA

Power loss ≤ 600 mWPower consumption ≤ 600 mW

Input

Connection terminals 1+, 2-; 3+, 4-




Line fault detection breakage I ≤ 0.1 mA, short-circuit I >6.5 mAPulse/Pause ratio ≥ 20 ms / ≥ 20 ms

Output

Connection terminals 5, 6; 7, 8



Minimum switch current 2 mA / 24V DC

Energized/De-energized delay ≥ 20 ms / ≥ 20 msMechanical life 107 switching cycles

Transfer characteristics

Switching frequency ≤ 10 HzElectrical isolation

Input/Output reinforced insulation acc. to EN 50178, ratedinsulation voltage 300Veff

Input/power supply reinforced insulation acc. to EN 50178, ratedinsulation voltage 300Veff

Output/power supply reinforced insulation acc. to EN 50178, ratedinsulation voltage 300Veff

Input/input Basic insulation according to EN 50178, ratedinsulation voltage 300Veff

Output/Output reinforced insulation acc. to EN 50178, ratedinsulation voltage 300Veff Directive conformity

Electromagnetic compatibility

Directive 2004/108/EC EN 61326-1:2006

Low voltage

Directive 2006/95/EC EN 61010-1:2010

Conformity

Electromagnetic compatibility NE 21

Protection degree IEC 60529


937TH-DISAR-DC2



Environmental and Mechanical SpecificationsOperating Temperature -20 ... 60 °C (-4 ... 140 °F)


Mass approx. 100 g

Dimensions 12.5 x 114 x 119 mm (0.5 x 4.5 x 4.7 in) ,housing type A2



Group, category, type of protection II (1)G [Ex ia Ga] IIC , II (1)D [Ex ia Da] IIIC , I (M1) [Ex ia Ma] I

Input [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I

Voltage Uo 10.5V

Current Io 17.1 mA


Supply


Output




Group, category, type of protection,temperature class II 3G Ex nA nC IIC T4 Gc

Output I, II

Contact loading 50V AC/2 A/cos φ > 0.7; 30V DC/ 2 A resistive load





Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007 ,EN 60079-15:2005 , EN 61241-11:2006

PWR

1

2

1

3

4

II

2S

OUT/CHK

I

24

13

9 1086

7

5

LED yellow/red:Status output/error channel I




LED yellow/red:Status output/error channel II

Front view

Switch 1 ... 4

Place for labeling

Product FeaturesCat. No. 937TH-DISAR-DC2

5

6

1+

2-

7

8

I

II

I

II3+

4-

Zone 0, 1, 2Div. 1, 2

Zone 2Div. 2

24 V DC9+10-

Power Rail

24 V DCERR

10 k

400 Ω ≤ R ≤ 2 kΩ

10 k

400 Ω ≤ R ≤ 2 kΩ

Wiring DiagramCat. No. 937TH-DISAR-DC2

Configuration

1

3

4

II

2

I

1

3

4

II

2S

I

24

13

9 1086

75

Switch position

Operating status

Factory settings: switch 1, 2, 3 and 4 in position I

S Function Position

1Mode of operation




2Mode of operation

Output II (relay)energized



3Line fault detection

Input ION I

OFF II

4Line fault detection

Input IION I

OFF II


Initiator high impedance/contact opened

low input current

Initiator low impedance/contact closed

high input current

Lead breakage,lead short-circuit

Line fault

ConfigurationCat. No. 937TH-DISAR-DC2

12.5

114

119

Approximate DimensionsCat. No. 937TH-DISAR-DC2

2-ch, 24V DC, continued


937TH-DISAR-DC2



1-ch, 115V AC

Features

� 1-channel isolated barrier� 115V AC supply� Dry contact or NAMUR inputs� Relay contact output� Fault relay contact output� Line fault detection (LFD)� Reversible mode of operation� Up to SIL2 acc. to IEC 61508/IEC 61511

This isolated barrier is used for intrinsic safety applications. Ittransfers digital signals (NAMUR sensors/mechanicalcontacts) from a hazardous area to a safe area. The proximitysensor or switch controls a form C changeover relay contactfor the safe area load. The normal output state can bereversed using switch S1. Switch S2 allows output II to beswitched between a signal output or an error messageoutput. Switch S3 is used to enable or disable line faultdetection of the field circuit. During an error condition, therelays revert to their de-energized state and the LEDsindicate the fault according to NAMUR NE44.

Specifications

937TS-DISRS-KD1

Description 115V AC, 1-channel with Splitter

Signal Type Digital Input, Relay Output

Supply

Connection terminals 14, 15

Rated voltage 103.5 ... 126V AC , 45 ... 65 Hz

Power loss 1.2 W


Connection terminals 1+, 2+, 3-


Open circuit voltage/short-circuitcurrent approx. 8V DC / approx. 8 mA



Output



Output II signal or error message ; relay





Input/Output reinforced insulation according to IEC/EN 61010-1,rated insulation voltage 300 Veff

Input/power supply reinforced insulation according to IEC/EN 61010-1,rated insulation voltage 300 Veff

Output/power supply reinforced insulation according to IEC/EN 61010-1,rated insulation voltage 300 Veff

Output/Output reinforced insulation according to IEC/EN 61010-1,rated insulation voltage 300 Veff Directive conformity


Directive 2004/108/EC EN 61326-1:2006

Low voltage

Directive 2006/95/EC EN 61010-1:2010

Conformity



Input EN 60947-5-6:2000

Switch Amplifier, Relay Outputwith Splitter

937TS-DISRS-KD1






Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in)



Group, category, type of protection II (1) G [Ex ia] IIC, II (1) D [Ex ia] IIIC


Voltage Uo 10.6 V

Current lo 19.1 mA


Supply

Maximum safe voltage Um 126.5V AC

Output


126.5V AC/4 A/cos φ > 0.7; 40V DC/2 A



Input/Output safe electrical isolation acc. to IEC/EN 60079-11,voltage peak value 375 V

Input/power supply safe electrical isolation acc. to IEC/EN 60079-11,voltage peak value 375 V

1 34 6

25

13 15129

107

14118

OUT CHK PWR

S2S1

S3

III

Front view

LED yellow:Relay output

LED red:LB/SC


Switch S2(output selection II)


Switch S1(mode of operation)

Switch S3(LB/SC-monitoring)

Removable terminalblue

Product FeaturesCat. No. 937TS-DISRS-KD1

2+

3-

1+

Zone 0, 1, 2Div. 1, 2

115 V AC1415

789

101112

I

II

10 k10 k

400 Ω ≤ R ≤ 2 kΩ

Wiring DiagramCat. No. 937TS-DISRS-KD1

Configuration

7 8 910 11 12

1 2 34 5 6

13 14 15

1PWRCHKOUT

S1S2S3

12

3

12

3

S1

S3

II

S2

I

Switch position

Operating status


S Function Position

1Mode of operation




2Assignment

Output II (relay)

switching state like output I I

fault signal output(de-energized if fault)

II


OFF II



low input current


high input current


Line fault

ConfigurationCat. No. 937TS-DISRS-KD1

20 mm(0.78")

115 mm (4.5'')

==

107

mm

(4.2

1'')

93 m

m (3

.66'

')

Approximate DimensionsCat. No. 937TS-DISRS-KD1



937TS-DISRS-KD1



1-ch, 230V AC

Features

� 1-channel isolated barrier� 230V AC supply� Digital input, relay output

This isolated barrier is used for intrinsic safety applications. Ittransfers digital signals (NAMUR sensors/mechanicalcontacts) from a hazardous area to a safe area. The proximitysensor or switch controls a form C changeover relay contactfor the safe area load. The normal output state can bereversed using switch S1. Switch S2 allows output II to beswitched between a signal output or an error messageoutput. Switch S3 is used to enable or disable line faultdetection of the field circuit. During an error condition, therelays revert to their de-energized state and the LEDsindicate the fault according to NAMUR NE44.

Specifications

Description 230V AC, 1-channel with Splitter


Supply


Rated voltage 207 ... 253V AC, 45 ... 65 Hz

Power loss 1.2 W


Connection terminals 1+, 2+, 3-


Open circuit voltage/short-circuit current

approx. 8V DC / approx. 8 mA



Output








Input/Output reinforced insulation according to IEC/EN 61010-1,rated insulation voltage 300 Veff

Input/power supply reinforced insulation according to IEC/EN 61010-1,rated insulation voltage 300 Veff

Output/power supply reinforced insulation according to IEC/EN 61010-1,rated insulation voltage 300 Veff

Output/Output reinforced insulation according to IEC/EN 61010-1,rated insulation voltage 300 Veff



Directive 2004/108/EC EN 61326-1:2006

Low voltage

Directive 2006/95/EC EN 61010-1:2010

Conformity



Input EN 60947-5-6:2000


937TS-DISRS-KF1



1 34 6

25

13 15129

107

14118

OUT CHK PWR

S2S1

S3

III

Front view

LED yellow:Relay output

LED red:LB/SC


Switch S2(output selection II)


Switch S1(mode of operation)

Switch S3(LB/SC-monitoring)


Product FeaturesCat. No. 937TS-DISRS-KF1

2+

3-

1+

Zone 0, 1, 2Div. 1, 2

230 V AC1415

789

101112

I

II

10 k10 k

400 Ω ≤ R ≤ 2 kΩ

Wiring DiagramCat. No. 937TS-DISRS-KF1

Configuration

7 8 910 11 12

1 2 34 5 6

13 14 15

1PWRCHKOUT

S1S2S3

12

3

12

3

S1

S3

II

S2

I

Switch position

Operating status


S Function Position

1Mode of operation




2Assignment

Output II (relay)

switching state like output I I


II


OFF II



low input current


high input current


Line fault

ConfigurationCat. No. 937TS-DISRS-KF1

20 mm(0.78")

115 mm (4.5'')

==

107

mm

(4.2

1'')

93 m

m (3

.66'

')

Approximate DimensionsCat. No. 937TS-DISRS-KF1



937TS-DISRS-KF1




Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in), housing type B2



Group, category, type of protection Ex II (1) G [Ex ia] IIC, II (1) D [Ex ia] IIIC


Voltage Uo 10.6V

Current Io 19.1 mA


Supply

Maximum safe voltage Um 253V A

Output








Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007,EN 61241-11:2006



1-ch, 24V DC

Features

� 1-channel isolated barrier� 24V DC supply (Power Rail)� Dry contact or NAMUR inputs� Relay contact output� Fault relay contact output� Housing width 12.5 mm� Up to SIL2 acc. to IEC 61508

This isolated barrier is used for intrinsic safety applications. Ittransfers digital signals (NAMUR sensors/mechanicalcontacts) from a hazardous area to a safe area. The proximitysensor or switch controls a form A normally open relaycontact for the safe area load. The normal output state canbe reversed using switch S1. Switch S2 allows output II to beswitched between a signal output and an error messageoutput. Switch S3 enables or disables line fault detection ofthe field circuit.

During an error condition, relays revert to their de-energizedstate and LEDs indicate the fault according to NAMUR NE44.A unique collective error messaging feature is available whenused with the Power Rail system.

Due to its compact housing design and low heat dissipation,this device is useful for detecting positions, end stops, andswitching states in space-criticalap plications.

Specifications

Description 24VDC, 1-channel with splitter


Supply



Ripple ≤ 10%Rated current ≤ 30 mA


Input

Connection terminals 1+, 2-





Output

Connection output I: terminals 5, 6 ;output II: terminals 7, 8




Energized/De-energized delay ≤ 20 ms / ≤ 20 msMechanical life 107 switching cycles



Input/Output reinforced insulation acc. to EN 50178, ratedinsulation voltage 300 Veff

Input/power supply reinforced insulation acc. to EN 50178, ratedinsulation voltage 300 Veff

Output/power supply reinforced insulation acc. to EN 50178, ratedinsulation voltage 300 Veff

Output/Output reinforced insulation acc. to EN 50178, ratedinsulation voltage 300 Veff Directive conformity


Directive 2004/108/EC EN 61326-1:2006

Low voltage

Directive 2006/95/EC EN 61010-1:2010

Conformity




937TH-DISRS-DC1





Mass approx. 100 g


Mounting on 35 mm DIN mounting rail acc. to EN60715:2001


Group, category, type of protection Ex II (1)G [Ex ia Ga] IIC , Ex II (1)D [Ex ia Da]IIIC < Ex> I (M1) [Ex ia Ma] I


Voltage Uo 10.5 V

Current Io 17.1 mA


Supply


Output I, II


Contact loading 253V AC/2 A/cos φ > 0.7; 126.5V AC/4A/cos φ > 0.7; 30V DC/2 A resistive load

Group, category, type of protection,temperature class Ex II 3G Ex nA nC IIC T4 Gc

Output I, II

Contact loading 50V AC/2 A/cos φ > 0.7; 30V DC/2 A resistiveload


Input/Output safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V

Input/power supply safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V


Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007 , EN60079-15:2005 , EN 61241-11:2006

PWR

1

3

4

II

2S

OUT/CHK

I

24

13

9 1086

7

5



Front view

Switch 1 ... 4

LED yellow/red:Status output I/Fault signal


Place for labeling

Product FeaturesCat. No. 937TH-DISRS-DC1

Wiring DiagramCat. No. 937TH-DISRS-DC1

Configuration

1

3

4

II

2

I

1

3

4

II

2S

I

24

13

9 1086

75

Switch position

Operating status

Factory settings: switch 1, 2, 3 and 4 in position I

S Function Position

1Mode of operation

Output I (relay )energize d



2Assignment

Output II (relay)

switching state like relay I I


II


OFF II

4 no function



low input current


high input current


Line fault

ConfigurationCat. No. 937TH-DISRS-DC1

12.5

114

119

Approximate DimensionsCat. No. 937TH-DISRS-DC1



937TH-DISRS-DC1



2-ch, 24V DC

Features

� 2-channel isolated barrier� 24V DC supply (Power Rail)� Housing width 12.5 mm� Up to SIL2 acc. to IEC 61508

This isolated barrier is used for intrinsic safety applications.The device transfers digital signals (NAMUR sensors or drycontacts) from a hazardous area to a safe area. Each inputcontrols a passive transistor output. Via switches the mode ofoperation can be reversed and the line fault detection can beswitched off. A fault is signalized by LEDs acc. to NAMURNE44 and a separate collective error message output

Specifications

Description 24V, 2-channel

Signal Type Digital Input, Transistor Output

Supply



Ripple ≤ 10%Rated current 30 ... 20 mA

Power loss ≤ 800 mW including maximum powerdissipation in the outputPower consumption —

Input






Output


Output I signal ; Transistor

Output II signal ; Transistor




Switching frequency ≤ 5 kHzElectrical isolation

Input/Output reinforced insulation acc. to EN 50178, ratedinsulation voltage 300 Veff

Input/power supply reinforced insulation acc. to EN 50178, ratedinsulation voltage 300 Veff

Output/power supply basic insulation according to EN 50178, ratedinsulation voltage 50 Veff

Output/Output basic insulation according to EN 50178, ratedinsulation voltage 50 VeffDirective conformity

Electromagnetic compatibility Directive 2004/108/EC

Conformity


Degree of protection IEC 60529:2001

Protection against electrical shock IEC 61010-1:2010

Input EN 60947-5-6:2000

Switch Amplifier Transistor Output

937TH-DISAT-DC2





Mass approx. 100 g




Group, category, type of protection

Ex II (1)G [Ex ia Ga] IIC

Ex II (1)D [Ex ia Da] IIIC

Ex I (M1) [Ex ia Ma] I

Input Ex ia

Voltage Uo 10.5 V

Current Io 17.1 mA


Supply


Output


Group, category, type of protection,temperature class Ex II 3G Ex nA IIC T4 Gc




Directive conformity Directive 94/9/EC

PWR

1 23 4

9 1086

75

S1

S3S4

S2

III

OUT/CHK1

2


Front view

Switch 1 ... 4


Place for labeling

LED yellow/red:Status output/Fault signal channel I


LED yellow/red:Status output/Fault signal channel II

Product FeaturesCat. No. 937TH-DISAT-DC2

5+

6-

1+

2-

7+

8-

Zone 0, 1, 2 Zone 2

24 V DC9+10-

Power Rail

24 V DCERR

10 kΩ

400 Ω ≤ R ≤ 2 kΩ

3+

4-10 kΩ

400 Ω ≤ R ≤ 2 kΩ

I

II

I

II

Wiring DiagramCat. No. 937TH-DISAT-DC2

1

I (A)

2

4

4010030 50 200

115 253U (V)20

0.50.4

0.15

ConfigurationCat. No. 937TH-DISAT-DC2

12.5

114

119

Approximate DimensionsCat. No. 937TH-DISAT-DC2


Switch Amplifier Transistor Output

937TH-DISAT-DC2



1-ch, 24V DC

Features

This isolated barrier is used for intrinsic safety applications.The device transfers digital signals (NAMUR sensors or drycontacts) from a hazardous area to a safe area. The inputcontrols two passive transistor outputs. Via switches themode of operation can be reversed and the line faultdetection can be switched off. Via switch the function of thesecond output can be defined as a signal output or an erroroutput. A fault is signalized by LEDs acc. to NAMUR NE44 anda separate collective error message output.

� 1-channel isolated barrier� 24V DC supply (Power Rail)� Housing width 12.5 mm� Up to SIL2 acc. to IEC 61508

Specifications

Description 24V, 1-channel with splitter

Signal Type Digital Input, Transistor Output

Supply



Ripple ≤ 10%Rated current 30 ... 20 mA

Power loss ≤ 800 mW including maximum powerdissipation in the outputInput





Line fault detection breakage I ≤0.1 mA, short-circuit I >6.5 mAPulse/Pause ratio ≥ 20 ms / ≥ 20 ms

Output


Output I signal ; Transistor

Output II signal ; Transistor




Switching frequency ≤ 5 kHzElectrical isolation

Input/Output reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff

Input/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff

Output/power supply basic insulation according to EN 50178, rated insulation voltage 50 Veff

Output/Output basic insulation according to EN 50178, rated insulation voltage 50 VeffDirective conformity

Electromagnetic compatibility Directive 2004/108/EC

Conformity



Protection against electrical shock IEC 61010-1:2010

Input EN 60947-5-6:2000

Switch Amplifier, TransistorOutput with Splitter

937TH-DISTS-DC1





Mass approx. 100 g


Mounting on 35 mm DIN mounting rail acc. to EN60715:2001


Input

Voltage 10.5 V

Current 17.1 mA

Power 45 mW (linear characteristic)

Supply

Maximum safe voltage 253V AC

Output

Maximum safe voltage 253V AC



Input/Output safe electrical isolation acc. toIEC/EN 60079-11, voltage peak value 375 V

Input/power supply safe electrical isolation acc. toIEC/EN 60079-11, voltage peak value 375 V


Directive 94/9/EC EN 60079-0:2012 , EN 60079-11:2012 , EN 60079-15:2010

PWR

1 23 4

9 1086

75

S1

S3S4

S2

III

OUT/CHK



Front view

Switch 1 ... 4

LED yellow/red:Status output/Fault signal


Place for labeling

Product FeaturesCat. No. 937TH-DISTS-DC1

5+

6-

1+

2-

7+

8-

Zone 0, 1, 2 Zone 2

24 V DC9+10-

Power Rail

24 V DCERR

10 kΩ

400 Ω ≤ R ≤ 2 kΩ

I

II

Wiring DiagramCat. No. 937TH-DISTS-DC1

S1

S3

S4

II

S2

I

S1

S3

S4

II

S2

I

ConfigurationCat. No. 937TH-DISTS-DC112.5

114

119

Approximate DimensionsCat. No. 937TH-DISTS-DC1


Switch Amplifier, TransistorOutput with Splitter

937TH-DISTS-DC1



1-ch, 24V DC

Features

� 1-channel isolated barrier� 24V DC supply (loop powered)� Current limit 45 mA at 12V DC� Housing width 12.5 mm� Up to SIL3 acc. to IEC 61508

This isolated barrier is used for intrinsicsafety applications. Itsupplies power to solenoids, LEDs, and audible alarmslocated in a hazardous area. It is loop powered, so theavailable energy at the output is received from the inputsignal. The output signal has a resistive characteristic. As aresult the output voltage and current are dependent on theload and the input voltage. At full load, 12 V at 45 mA isavailable for the hazardous area application.

Specifications

Decription 24V DC, 1-channel

Signal Type Digital Output

Supply

Connection Loop powered

Power loss 1 W

Input


Rated voltage Ui 19 ... 30V DC

Current

≤ 72 mA at Ui = 19 V, ≤ 50 mA at Ui =30 V with 265 W output load

≤ 45 mA at Ui = 19 V, ≤ 31 mA at Ui = 30 V with shorted output

≤ 14 mA at Ui = 19 V, ≤ 11 mA at Ui =30 V no load at output

Inrush current ≤ 200 mA after 100 msOutput


Internal resistor Ri ≤ 238 ΩCurrent Ie ≤ 45 mA

Voltage Ue ≥ 12 VOpen loop voltage Us ≥ 22.7 V

Output rated operating current 45 mA

Output signal These values are valid for the rated operating voltage 19 ... 30V DC.

Energized/De-energized delay single operation: typ. 1.7 ms/50 ms; periodical: typ. 5 ms/50 ms

Solenoid Driver

937TH-DOSND-IP1






Dimensions 12.5 x 114 x 119 mm (0.5 x 4.5 x 4.7 in) , housing type A2

Mounting 35 mm DIN Rail per EN 60715:2001


Group, category, type of protection Ex II (1)G [Ex ia Ga] IIC , Ex II (1)D [Ex ia Da] IIIC ,

Ex I (M1) [Ex ia Ma] I

[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I

Output

Voltage Uo 25.2 V

Current Io 110 mA

Power Po 693 mW

Input

Maximum safe voltage Um 250V





Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007 , EN 60079-15:2005 , EN 61241-11:2006

Removable terminal black

Product FeaturesCat. No. 937TH-DOSND-IP1

Wiring DiagramCat. No. 937TH-DOSND-IP1

12.5

114

112

Approximate DimensionsCat. No. 937TH-DOSND-IP1


Solenoid Driver

937TH-DOSND-IP1



This isolated barrier is used for intrinsic safety applications.The device supplies 2-wire SMART transmitters in ahazardous area, and can also be used with 2-wire SMARTcurrent sources. It transfers the analog input signal to thesafe area as an isolated current value. Digital signals may besuperimposed on the input signal in the hazardous or safearea and are transferred bi-directionally. Selectable output ofcurrent source, sink mode, or voltage output is available viaDIP switches. If the HART communication resistance in theloop is too low, the internal resistance of 250 Ω betweenterminals 6 and 8 can be used. Test sockets for theconnection of HART communicators are integrated into theterminals of the device.

Features

� 1-channel isolated barrier� 24V DC supply (Power Rail)� Input for 2-wire SMART transmitters and current sources� Output for 4 mA ... 20 mA or 1 V ... 5 V� Sink or source mode� Housing width 12.5 mm� Up to SIL2 acc. to IEC 61508

Specifications

Desciption 24V DC, 1-channel

Signal Type Analog input

Supply



Ripple ≤ 10 %Rated current ≤ 45 mA

Power loss ≤ 800 mWPower consumption ≤ 1.1 W

Input


Input signal 4 ... 20 mA limited to approx. 30 mA

Open circuitvoltage/short-circuit

current terminals 1+, 2-: 22 V / 30 mA

Voltage drop terminals 3+, 4- : approx. 5 V

Available voltage terminals 1+, 2-: ≥ 15 V at 20 mAOutput

Connection terminals 5-, 6+

Load 0 ... 300 W (source mode)

Output signal 4 ... 20 mA or 1 ... 5 V (on 250 W, 0.1 % internal shunt)4 ... 20 mA (sink mode), operating voltage 15.5 ... 26 V

Ripple 20 mV rms


Deviation

at 20 °C (68 °F)

≤ ± 0.1 % incl. non-linearity and hysteresis (source mode 4 ... 20 mA)≤ ± 0.2 % incl. non-linearity and hysteresis (sink mode 4 ... 20 mA)

≤ ± 0.2 % incl. non-linearity and hysteresis (source mode 1 ... 5 V)

Influence of ambienttemperature

< 2 mA/K (0 ... 60 °C (32 ... 140 °F)); < 4 mA/K (-20 ... 0 °C (-4 ... 32 °F))(source mode and sink mode 4 ... 20 mA)

< 0.5 mV/K (0 ... 60 °C (32 ... 140 °F)); < 1 mV/K (-20 ... 0 °C (-4 ... 32 °F))(source mode 1 ... 5 V)

Frequency range

field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)

control side into the field side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)

Settling time ≤ 200 msRise time/fall time ≤ 20 ms


Input/Output reinforced insulation acc. to EN 50178, rated insulation voltage 300Veff

Input/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300Veff

Output/powersupply reinforced insulation acc. to EN 50178, rated insulation voltage 300Veff



Directive2004/108/EC EN 61326-1:2006

Conformity

Electromagneticcompatibility NE 21:2006


1-ch, 24V DC

SMART Power Supply

937TH-AITXP-DC1



Environmental and Mechanical SpecificationsAmbient temperature -20 ... 60 °C (-4 ... 140 °F)



Dimensions 12.5 x 114 x 124 mm (0.5 x 4.5 x 4.9 in), housing type A2



Group, category, type of protection II (1)G [Ex ia Ga]IIC , II (1)D[Ex ia Da] IIIC, I (M1) [Ex ia Ma] I


Supply


Equipment terminals 1+, 2-

Voltage Uo 25.2 V

Current Io 100 mA

Power Po 630 mW


Voltage Ui < 30 V

Current Ii < 128 mA

Voltage Uo 7.2 V

Current Io 100 mA

Power Po 25 mW

Group, category, type of protection,temperature class II 3G Ex nA IIC T4 Gc





Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007,

EN 60079-15:2005 , EN 60079-26:2007, EN 61241-11:2006 , EN 50303:2000

PWR

9 1086

75

S1

S3

S4

S2

III

1 23 4




Front view

Switch 1 ... 4

Place for labeling

Product FeaturesCat. No. 937TH-AITXP-DC1

7-

5-

1+

2-3+

4-

6+

8+

HA

RT

Zone 2Div. 2

HA

RT

24 V DC9+10-

Power Rail

24 V DC

HA

RT

V

mA

Zone 0, 1, 2Div. 1, 2

250

Wiring DiagramCat. No. 937TH-AITXP-DC1

S1

S3S4

II

S2

I

S1

S3S4

II

S2

I

PWR

S1

S3S4

II

S2

I

S1

S3S4

II

S2

I

Operating mode

Output as current source4 mA ... 20 mA

Output as voltage source1 V ... 5 V

Output as current sink4 mA ... 20 mA

ConfigurationCat. No. 937TH-AITXP-DC1

12.7 mm(0.5")

114 mm (4.49'')

46 m

m (1

.82'

')58

mm

(2.2

8'') 1

19 m

m (4

.7'')

104

mm

(4.1

'')

Approximate DimensionsCat. No. 937TH-AITXP-DC1

1-ch, 24V DC, continuedSMART Power Supply

937TH-AITXP-DC1



This isolated barrier is used for intrinsic safety applications.The device supplies 2-wire SMART transmitters in ahazardous area. It transfers the analog input signal to the safearea as an isolated current value.

Digital signals may be superimposed on the input signal inthe hazardous or safe area and are transferred bi-directionally.

If the HART communication resistance in the loop is too low,the internal resistance of 250 Ω between terminals 8, 9 and11, 12 can be used.

Test sockets for the connection of HART communicators areintegrated into the terminals of the device.

The device supports the following SMART protocols:

Specifications

Desciption 24V DC, 2-channel

Supply



Ripple within the supply tolerance

Power loss 1.8 W



Input signal 0/4 ... 20 mA

Available voltage ≤ 16 V at 20 mA, terminals 1+, 3Output

Connection terminals 7-, 8+; 10-, 11+

Load 0 ... 550 Ohm

Output signal 0/4 ... 20 mA (overload > 25 mA)

Ripple 50 mA rms


Deviation at 20 °C (68 °F), 0/4 ... 20 mA

≤ 10 mA incl. calibration, linearity, hysteresis, loadsand fluctuations of supply voltage

Influence of ambient temperature 0.25 μA/K

Frequency range

field side into the control side: band width with 1 Vppsignal 0 ... 7.5 kHz (-3 dB)

safe area to hazardous area: band width with 1 VSSsignal 0.3 ... 7.5 kHz (-3 dB)

Settling time 200 μs

Rise time/fall time 20 μs


Output/power supply functional insulation, rated insulation voltage 50V AC

Output/Output functional insulation, rated insulation voltage 50V AC



Directive 2004/108/EC EN 61326-1:2006

Conformity



Protection against electrical shock UL 61010-1:2004

2-ch, 24V DCSMART Power Supply

937TS-AITXP-DC2

� 2-channel isolated barrier� 24V DC supply (Power Rail)� Input 2-wire SMART transmitters� Output for 0/4... 20 mA� Terminals with test points� Up to SIL2 acc. to IEC 61508

� HART� BRAIN� Foxboro






Dimensions 20 x 124 x 115 mm (0.8 x 4.9 x 4.5 in), housing type B2



Group, category, type of protection Ex II (1)GD, I (M1) [Ex ia] IIC, [Ex iaD],

[Ex ia] I (-20 °C ≤ Tamb ≤ 60 °C) [circuit(s) in zone 0/1/2]

Input Ex ia IIC

Voltage 25.2 V

Current 93 mA

Power 0.586 W

Supply

Maximum safe voltage 250V

Group, category, type of protection,temperature class Ex II 3G Ex nA II T4 [device in zone 2]





Directive 94/9/EC EN 60079-0:2012 , EN 60079-11:2007 , EN 60079-15:2010 , EN 61241-11:2006

1 34 6

25

13 15129

107

14118

PWR

Front view




Product FeaturesCat. No. 937TS-AITXP-DC2

Zone 0, 1, 2Div. 1, 2

24 V DC14+15-

Power Rail

24 V DC

3-

1+

6-

4+

HA

RT

HA

RT

I

II

7-

8+

9250

HA

RT

10-

11+

12250

HA

RT

Zone 2Div. 2

Wiring DiagramCat. No. 937TS-AITXP-DC2

20 mm(0.78")

115 mm (4.5'')

==

107

mm

(4.2

1'')

93 m

m (3

.66'

')

Approximate DimensionsCat. No. 937TS-AITXP-DC2


SMART Power Supply

937TS-AITXP-DC2



This isolated barrier is used for intrinsic safety applications.The device supplies 2-wire transmitters in the hazardous area,and can also be used with current sources. It transfers theanalog input signal to the safe area as two isolated outputsignals. Bi-directional communication is supported for SMARTtransmitters that use current modulation to transmit dataand voltage modulation to receive data. The output isselected as a current source, current sink, or voltage sourcevia switches. Test sockets for the connection of HARTcommunicators are integrated into the terminals of thedevice.

Features

� 1-channel isolated barrier� 24V DC supply (Power Rail)� Input for 2-wire SMART transmitters and current sources� Signal splitter (1 input and 2 outputs)� Dual output 0/4 mA ... 20 mA or 0/1 V ... 5 V� Terminal blocks with test sockets� Up to SIL2 acc. to IEC 61508

Specifications

Desciption 24V DC, 1-channel with Splitter

Signal Type Analog input

Supply




Rated current —

Power loss approx. 1.4 W at 20 mA transfercurrent, 250 W in both outputs

Power consumption 2 W

Input

Connection terminals 1+, 2- (sink); 3+, 4- (source)

Input signal 0/4 ... 20 mA

Voltage drop ≤ 6.1 V at 20 mA (terminals 3, 4)

Input Resistanceterminals 3+, 4-:≤ 310 Ω

terminals 1+, 2-: ≤ 500 Ω (250 Ω load)Available voltage ≥ 15 vat 20 mA terminals 1+, 2-

Output

Connection source: terminals 5-, 6+; 7-, 8+

sink: terminals 5+, 6-, 7+, 8-

Load channel 1: 0 ... 500 Ωchannel 2: 0 ... 500 Ω

Output signal 0/4 ... 20 mA or 0/1 ... 5 V

Ripple ≤ 50 μA rmsTransfer characteristics

Deviation Iout < 20 mA; Vout < 7.5 mV incl. calibration,linearity, hysteresis and fluctuation of supply voltage,

at 20 °C (68 °F), 0/4 ... 20 mA, 0/1 ... 5 V

Influence of ambient temperature 0.25 μA/K

Frequency range field side into the control side: bandwidth with 0.5 Vppsignal 0 ... 7.5 kHz (-3 dB)

control side into the field side: bandwidth with 0.5 Vppsignal 0.3 ... 7.5 kHz (-3 dB)

Settling time 200 μs

Rise time/fall time 20 μs


Output/power supply functional insulation, rated insulation voltage 50V AC

Output/Output functional insulation, rated insulation voltage 50V AC



Directive 2004/108/EC EN 61326-1:2006

Conformity



Protection against electrical shock UL 61010-1

1-ch, 24V DC

SMART Power Supply with Splitter

937TH-AITXS-DC1






Dimensions 12.5 x 114 x 124 mm (0.5 x 4.5 x 4.9 in), housing type A2



Group, category, type of protection II (1)G [Ex ia Ga] IIC , II (1)D [Ex ia Da]IIIC , I (M1) [Ex ia Ma] I


Supply



Voltage Uo 25.2V

Voltage Uq 28.2V

Current Io 93 mA

Power Po 656 mW


Voltage Ui 30V

Current Ii 115 mA

Power Pi 700 mW

Voltage Uo 5V

Current Io 6.8 mA

Power Po 1.6 mW

Output


Group, category, type of protection,temperature class II 3G Ex nA II T4 Gc [device in zone 2]





Directive 94/9/EC EN 60079-0:2009, EN 60079-11: 2012, EN 60079-15: 2010

PWR

9 1086

75

1 23 4

S1

S3

S4

S2

III




Front view

Place for labeling

Switches S1, S2, S3, S4

Product FeaturesCat. No. 937TH-AITXS-DC1

1+

2-3+

4-

HAR

T

Zone 2Div. 2

HAR

T

mA

Zone 0, 1, 2Div. 1, 2

24 V DC9+10-

Power Rail

24 V DC

5

6

HA

RT I

7

8

II

HA

RT

V+-

+

-

+

+

-

+

-

V+

Wiring DiagramCat. No. 937TH-AITXS-DC1

12.7 mm(0.5")

114 mm (4.49'')

46 m

m (1

.82'

')58

mm

(2.2

8'') 1

19 m

m (4

.7'')

104

mm

(4.1

'')

Approximate DimensionsCat. No. 937TH-AITXS-DC1


SMART Power Supply with Splitter, continued

937TH-AITXS-DC1



Features

� 1-channel isolated barrier� 24V DC supply (Power Rail)� Resistance and RTD input (Pt100, Pt500, Pt1000)� Resistance output� Accuracy 0.1 %� Line fault detection (LFD) for Pt100� Housing width 12.5 mm

This isolated barrier is used for intrinsic safety applications. Ittransfers resistance values of RTDs or potentiometers fromhazardous areas to safe areas. A 2-, 3-, or 4-wire technique isavailable depending on the required accuracy. The input cardof the control system measures the same load as if it wereconnected directly to the resistance in a hazardous area.

Specifications

Description 24V DC, 1-channel

Signal Type Digital Output

Supply




Rated current 30 Ω and Im < 5mA: < 10ms

response to application of Im: Rm > 18 Ω and Im < 5mA:






Dimensions 12.5 x 114 x 119 mm (0.5 x 4.5 x 4.7 in),housing type A2


PWR

II

S1

I

24

13

9 1086

75




Front view

Switch S1

Place for labeling

Product FeaturesCat. No. 937TH-AIRRP-DC1

Zone 2Div. 2

Zone 0, 1, 2Div. 1, 2

4+

3+

24 V DC9+10-

Power Rail

24 V DC

1-

2-

8+

7-

6+

5-

mA

Wiring DiagramCat. No. 937TH-AIRRP-DC1

+ --+ + --+ + --+8 6 5 7 8 6 5 7 8 6 5 7 8 6 5 7

+ --+

3-wi re techniquenegativ e

measuring lin e

4-wi re technique2-wi re technique

DCS , PL C,Signal

converter

DCS , PL C,Signal

converter

3-wi re techniquepositiv e

measuring lin e

DCS , PL C,Signal

converter

DCS , PL C,Signal

converter

Connection TypesCat. No. 937TH-AIRRP-DC1

2 4 6 8 10 12 kΩ

10

8

6

4

2

Max. resistance of sensor

Measuring curr entI (mA)

0.5

8.4

Output CurveCat. No. 937TH-AIRRP-DC1

12.7 mm(0.5")

114 mm (4.49'')

46 m

m (1

.82'

')58

mm

(2.2

8'') 1

19 m

m (4

.7'')

104

mm

(4.1

'')

Approximate DimensionsCat. No. 937TH-AIRRP-DC1


Temperature Repeater

937TH-AIRRP-DC1



Features

� 1-channel isolated barrier� 24V DC supply (Power Rail)� Current output up to 650 Ohm load� HART I/P and valve positioner� Lead breakage monitoring� Accuracy 0.1 %� Housing width 12.5 mm� Up to SIL2 acc. to IEC 61508

This isolated barrier is used for intrinsic safety applications. Itdrives SMART I/P converters, electrical valves, and positionersin hazardous areas. Digital signals are superimposed on theanalog values at the field or control side and are transferredbi-directionally. Current transferred across the DC/DCconverter is repeated at terminals 1 and 2. An open fieldcircuit presents a high input impedance to the control sideto allow lead breakage monitoring by control system. If theloop resistance for the digital communication is too low, aninternal resistor of 250 Ω between terminals 6 and 8 isavailable, which may be used as the HART communicationresistor. Sockets for the connection of a HART communicatorare integrated into the terminals of the device.

Specifications


Signal Type Analog Output

Supply



Ripple ≤ 10 %Rated current ≤ 30 mA


Input

Connection terminals 5-, 6+

Input signal 4 ... 20 mA limited to approx. 30 mA

Input voltage

depending on switch configuration

open loop voltage of the control system < 23V

open loop voltage of the control system < 27V

Voltage drop

depending on switch configuration

open loop voltage of the control system < 23V: approx. 6 V at 20 mA

open loop voltage of the control system < 27V:approx. 10 V at 20 mA

Input resistance >100 kΩ, with field wiring open

Output


Current 4 ... 20 mA

Load 0 ... 650 Ω

Voltage ≥ 13V at 20 mARipple 20 mVrms


Deviation at 20 °C (68 °F), 0/4 ... 20 mA

≤ ± 0.1 % incl. non-linearity and hysteresisInfluence of ambient

temperature < 2 mA/K (0 ... 60 °C (32 ... 140 °F)); < 4 mA/K (-20 ... 0 °C (-4 ... 32 °F))

Frequency range

field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)

control side into the field side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)

Rise time 10 to 90 % ≤100 msElectrical isolation

Input/Output reinforced insulation acc. to EN 50178,

rated insulation voltage 300Veff Input/power supply

Output/power supply


Directive 2004/108/EC EN 61326-1:2006



1-ch, 24V DCSMART Current Driver

937TH-AOSCD-DC1




Dimensions 12.5 x 114 x 119 mm (0.5 x 4.5 x 4.7 in)housing type A2



Group, category, type of protection II (1)G [Ex ia Ga] IIC , II (1)D [Ex ia Da]IIIC , I (M1) [Ex ia Ma] I

Output [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I

Supply



Voltage Uo 25.2V

Current Io 100 mA

Power Po 630 mW

Group, category, type of protection,temperature class II 3G Ex nA IIC T4 Gc



Output/power supply safe electrical isolation acc. to IEC/EN 60079-11,voltage peak value 375 V


Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007 ,

EN 60079-15:2005 , EN 60079-26:2007 ,EN 61241-11:2006 , EN 50303:2000

PWR

9 1086

75

S1

S3

S4

S2

III

1 23 4




Front view

Place for labeling

Switch 1 ... 4

Product FeaturesCat. No. 937TH-AOSCD-DC1

7-

5-

1+

2-6+

8+

Zone 2Div. 2

24 V DC9+10-

Power Rail

24 V DCZone 0, 1, 2Div. 1, 2

250

IP HA

RT

mA

HA

RT

Wiring DiagramCat. No. 937TH-AOSCD-DC1

S1

S3

S4

II

S2

I

S1

S3

S4

S2

III

PWR

9 1086

75

1 23 4

ConfigurationCat. No. 937TH-AOSCD-DC1

12.5

114

122

Approximate DimensionsCat. No. 937TH-AOSCD-DC1

1-ch, 24V DC, continuedSMART Current Driver

937TH-AOSCD-DC1

32 Rockwell Automation Publication 937-SG001C-EN-P — January 2015



Converter Barriers

Universal TemperatureConvertersUniversal Temperature Convertersare designed to connect RTDs,thermocouples or potentiometersin the hazardous area, andprovide a proportional 0/4 mA ...20 mA signal to the safe area.

Transmitter Supply ConvertersTransmitter Supply Converterssupply 2-wire and 3-wiretransmitters in a hazardous area,and can also be used with activecurrent sources.

HART Loop ConvertersHART Loop Converters providepower to transmitters or can beconnected to existing HART loopsin parallel. They are able toevaluate up to four HART variables(PV, SV, TV, QV). Of those fourHART variables, the datacontained in any three of themcan be converted to threedifferent 4 mA ... 20 mA currentsignals.

Strain Gauge ConvertersStrain Gauge Converters are usedwith strain gauges, load cells andresistance measuring bridges.

Universal Frequency Converters Universal Frequency Converterschange a digital input (NAMURsensor/mechanical contact) into aproportional, adjustable 0/4 mA ... 20 mA analog outputand functions as a switch amplifierand a trip alarm.

FDT InterfaceConfiguring converter modules is convenient with a PCusing Field Device Tool (FDT) software. Somespecialized functions can only be selected using theFDT. The FDT interface is the specification describingthe standardized data exchange between devices andcontrol system or engineering or asset managementtools. Examples include: PACTwareTM , FieldCare,FactoryTalk AssetCentre, and Process DeviceConfiguration. FDT frame software can be downloadedat http://www.pactware.com. PACTware is trademark ofPACTware Consortium

Converters add functionality to the isolators by receiving signals from a hazardous area instrument e.g.,temperature sensors, or load cells and then converting them to an industry standardized signal such as0/4…20mA or 0/2…10V. Pulse evaluation units process a frequency signal at the input. A lead faultmonitoring system signals a lead breakage or lead short-circuit on the signal cables.

937 Intrinsic Safety Converter Barriers


Catalog Number ExplanationNote: Examples given in this section are for reference purposes. This basic explanation should not be used for product selection; some combinations may not produce a valid catalog number.

aModule Profile

Code DescriptionH High-density 12.5mm module

S Standard 20 mm module

U Universal 40 mm module

937C U – AI TXF - KD 1a b c - d e

bI/O Type

Code DescriptionDI Digital In

DO Digital Out

AI Analog In

AO Analog Out

cFunctionality

Code DescriptionTMP Converter, Temperature�

FRQ Converter, Frequency with trip alarm

TXF Converter, Transmitter Power Supply with trip alarm

HLP Converter, HART Loop Power

STR Converter, Strain Gauge

� FDT Software required to program this module.

dPower

Code DescriptionIP Input Loop Powered

DC 24V DC

BC 20...90V DC/48...253V AC

KD 115V AC

KF 230V AC

eChannels

Code Description1 Single Channel

2 Dual Channel



� 1-channel isolated barrier� 24V DC supply (Power Rail)� TC, RTD, potentiometer or voltage input� Current output 0/4 mA ... 20 mA� Sink or source mode� Configurable by PACTware� Line fault (LFD) and sensor burnout detection� Up to SIL2 acc. to IEC 61508/IEC 61511

Specifications


Signal Type Analog Input

Supply

Connection terminals 14+, 15- or power feed module/Power Rail



Power loss/power consumption ≤ 0.98 W / 0.98 WInput

Connection terminals 1, 2, 3, 4

RTD

type Pt10, Pt50, Pt100, Pt500, Pt1000(EN 60751: 1995)

type Pt10GOST, Pt50GOST, Pt100GOST, Pt500GOST,Pt1000GOST (6651-94)

type Cu10, Cu50, Cu100 (P50353-92)

type Ni100 (DIN 43760)

Measuring current approx. 200 mA with RTD

Types of measuring 2-, 3-, 4-wire connection

Lead resistance ≤ 50 Ω per leadMeasuring circuit monitoring sensor breakage, sensor short-circuit

Thermocouples

type B, E, J, K, N, R, S, T (IEC 584-1: 1995)

type L (DIN 43710: 1985)

type TXK, TXKH, TXA (P8.585-2001)

Cold junction compensation external and internal

Measuring circuit monitoring sensor breakage

Voltage selectable within the range -100 ... 100 mV

Potentiometer 0 ... 20 kΩ (2-wire connection),

0.8 ... 20 kΩ (3-wire connection)

Input resistance ≥ 1 M Ω (-100 ... 100 mV)Output

Connection output I: terminal 7: source (-), sink (+), terminal 8: source (+), terminal 9: sink(-)

Output Analog current output

Current range 0 ... 20 mA or 4 ... 20 mA

Fault signal downscale 0 or 2 mA, upscale 21.5 mA (acc. NAMUR NE43)

Source load 0...550 Ω

open-circuit voltage ≤ 18V

Sink

Voltage across terminals 5 ... 30 V. If the current issupplied from a source > 16.5 V,

series resistance of≥ (V - 16.5)/0.0215 Ω is needed,where V is the source voltage.

The maximum value of the resistance is (V - 5)/0.0215 Ω

This isolated barrier is used for intrinsic safety applications. Itis designed to connect RTDs, thermocouples, orpotentiometers in the hazardous area, and provide aproportional 0/ 4 mA ... 20 mA signal to the safe area.Thebarrier offers 3-port isolation between input, output, andpower supply.

A removable terminal block is available for thermocoupleswhen internal cold junction compensation is desired (Cat.No. 937A-TCJC).

A fault is indicated by a red flashing LED per NAMUR NE44and user-configured fault outputs.

The unit is easily programmed with the FDT configurationsoftware. A collective error messaging feature is availablewhen used with the Power Rail system.

Features

1-ch, 24V DC

Universal Temperature Converter

937CS-AITMP-DC1



PROGRAM

ERR PWR

1 34 6

25

13 15129

107

14118

Front view



LED red:Fault signal

Programming jack


Product FeaturesCat. No. 937CS-AITMP-DC1

Zone 2Div. 2

Zone 0, 1, 2Div. 1, 2

2

3

1+

- T T

+

-T

4

24 V DC14+15-

Power Rail

24 V DCERR

7

9-

8+V

V

K-CJC-**

Wiring DiagramCat. No.937CS-AITMP-DC1

20 mm(0.78")

115 mm (4.5'')

46 m

m (1

.82'

')58

mm

(2.2

8'') 1

19 m

m (4

.7'')

104

mm

(4.1

'')

Approximate DimensionsCat. No. 937CS-AITMP-DC1

Transfer characteristicsDeviation

After calibration

Pt100: ± (0.06 % of measurement value in K + 0.1 % ofspan + 0.1 K (4-wire connection))

thermocouple: ± (0.05 % of measurement value in °C +0.1 % of span + 1 K (1.2 K for types R and S))

this includes ± 0.8 K error of the cold junction compensation

mV: ± (50 mV + 0.1 % of span)

potentiometer: ± (0.05 % of full scale + 0.1 % of span,(excludes errors due to lead resistance))

Influence of ambient temperature

deviation of CJC included:

Pt100: ± (0.0015 % of measurement value inK +0.006 % of span)/K ΔTamb*)

thermocouple: ± (0.02 K + 0.005 % of measurementvalue in °C + 0.006 % of span)/K ΔTamb*)

mV: ± (0.01 % of measurement value +0.006 % of span)/K ΔTamb*)

Potentiometer: ± 0.006 % of span/K ΔTamb ΔTamb = ambient temperature change

referenced to 23 °C (296 K)

Influence of supply voltage < 0.01 % of span

Influence of load ≤ 0.001 % of output value per 100 Ώ

Reaction time

worst case value (sensor breakage and/or sensor shortcircuit detection enabled)

mV: 1 s, thermocouples with CJC: 1.1 s, thermocouples with fixed reference temperature: 1.1 s,

3- or 4-wire RTD: 920 ms, 2-wire RTD: 800 ms, Potentiometer: 2.05 s


Output/supply, programming input

functional insulation, rated insulation voltage 50V AC

There is no electrical isolation betweenthe programming input and the supply.

The programming cable provides galvanic isolation so that ground loops are avoided.



Directive 2004/108/EC EN 61326-1:2006

Conformity



Protection against electrical shock UL 61010-1:2004

Environmental and Mechanical Specifications

Operating temperature -20 ... 60 °C (-4 ... 140 °F)



Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in) , housing type B2



Universal Temperature Converter

937CS-AITMP-DC1



� 1-channel isolated barrier� 24V DC supply (Power Rail)� Input for NAMUR sensors or dry contacts� Input frequency 1 mHz ... 5 kHz� Current output 0/4 mA ... 20 mA� Relay and transistor output� Start-up override� Line fault detection (LFD)� Up to SIL2 acc. to IEC 61508/IEC 61511

Specifications


Signal Type Digital Input

Supply

Connection terminals 23+, 24- or power feed module/Power Rail


Rated Current approx. 100 mA

Power loss/power consumption ≤ 2 W / 2.2 WInput

Connection Input I: intrinsically safe: terminals 1+, 3-

Input II: non-intrinsically safe: terminals 13+, 14-

Input I sensor acc. to EN 60947-5-6 (NAMUR) or mechanical contact

Pulse duration > 50 μs

Input frequency 0.001 ... 5000 Hz

Lead monitoring breakage I ≤ 0.15 mA; short-circuit I >6.5 mAInput II startup override: 1 ... 1000 s, adjustable in steps of 1 s

Active/Passive I >4 mA (for min. 100 ms) / I< 1.5 mA

Open circuit voltage/short-circuit current

18V / 5 mA

Output

Connection

output I: terminals 10, 11, 12

output II: terminals 16, 17, 18

outout III: terminasl 19+, 20-

output IV: terminals 8+, 7-

Output I, II signal, relay

Mechanical life 5 x 107 switching cycles

Energized/De-energized delay approx. 20 ms / approx. 20 ms

Output III electronic output, passive

Contact loading 40V DC

Signal level 1-signal: (L+) - 2.5V

(50 mA, short-circuit/overload

Documents

Bulletin 937 Intrinsic Safety Modules · 2017. 12. 6. · 937 Intrinsic Safety Isolated Barriers Rockwell Automation Publication 937-SG001C-EN-P — January 2015 7 2-ch, 230V AC Features