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T HERM-X of California 26 RTDs 1- 51 0- 441- 75 66 1-800- 9- THERM- X One of the most important industrial process variables is temperature which affects the quality of product and the safety of the installation. There is no single sensor which is equally suitable for all applications, so sensors of different sizes are manufactured by different production methods. Therm-x uses the highest qualty Resistance elements in the manufacturing of our sensors. Tolerances the platinum sensor Pt 100 is defined by the international Standard lEC 751. This definition covers the characteristics and two tolerance classes, Class A and Class B. The permitted error limit increases with the measurement tempera- ture. Each class consists of a tolerance on the nominal value (resistance at 0. 0 C )and a deviation depending on temperature. Class tolerances are tested in the element form. Packaging and lead terminations affect the stated tolerance. Therm-x standard assemblies incorpora te thin film elements conforming to IEC class B. Controlled assem- bly procedures are utilized to minimize packaging effects to tolerances. Special tolerances and N.I.S.T. certifications are available upon request for a nominal charge. See page 9 for calibration services offered. For a Class A sensor the following relationship applies where “T” is the absolute temperature: rT=±(0.15+0.0 02 * t) For t =75 0 C, the tolerance is therefore: rT=±(0.15+0.002 * 75)=±0.3 0 C For a Class B sensor the following relationship applies: rT= ±(0.3+0.005 * t). In the above example the dev iation is therefore: rT= ±(0.3 + 0.005 * 75) = ±0.675 0 C For applications where closer tolerances are required, detectors are available in the following band tolerances Band Ohms 1 .1 (Standard) 2 .05 3 .03 4 .02 5 .01 RTD Specifications Design Thin film elements have a sensitive plati- num film deposited onto the ceramic former. These types offer smaller dimen- sions and the possibility for higher nomi- nal resistances. Wire woun d ceramic e le- ments consist of a ceramic body having the heat sensitive resistance wire encap- sulated into longitudal bores. Characteristic All versions described conform to the ba- sic values and tolerances of DIN IEC 751 for platinum sensors. Sensors with 5 or 10 times the nominal value of 100 Ohm have the electrical tolerances increased by a fac- tor of 5 and 10 respectively. Stability Compared with other temperature sensors, PT precision resistance elements possess good long term stability at the upper appli- cation limit.

Rtd Specifications

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8/8/2019 Rtd Specifications

http://slidepdf.com/reader/full/rtd-specifications 1/3T HERM-X of California 26

RTDs

1-510-441-7566 1-800-9-THERM-X 

One of the most important industrial process variables is temperature which affects the quality of product and the safety of the installation. There is no single sensor which is equally suitable for all applications, so sensors of different sizes are manufactured by different production methods. Therm-x uses the highest qualty Resistance elements in the 

manufacturing of our sensors.

Tolerancesthe platinum sensor Pt 100 is defined by the international Standard lEC 751. This definition covers the characteristicsand two tolerance classes, Class A and Class B. The permitted error limit increases with the measurement tempera-ture. Each class consists of a tolerance on the nominal value (resistance at 0.0C  )and a deviation depending ontemperature. Class tolerances are tested in the element form. Packaging and lead terminations affect the statedtolerance. Therm-x standard assemblies incorporate thin film elements conforming to IEC class B. Controlled assem-bly procedures are utilized to minimize packaging effects to tolerances. Special tolerances and N.I.S.T. certificationsare available upon request for a nominal charge. See page 9 for calibration services offered.

For a Class A sensor the following relationship applies where “T” is the absolute temperature:rT=±(0.15+0.002 * t) For t =75 0C, the tolerance is therefore: rT=±(0.15+0.002 * 75)=±0.30C

For a Class B sensor the following relationship applies:rT= ±(0.3+0.005 * t). In the above example the deviation is therefore:rT= ±(0.3 + 0.005 * 75) = ±0.675 0C

For applications where closer tolerances are required, detectors are available in the following band tolerances

Band Ohms1 .1 (Standard)2 .053 .034 .025 .01

RTD Specifications 

Design

Thin film elements have a sensitive plati-num film deposited onto the ceramicformer. These types offer smaller dimen-sions and the possibility for higher nomi-nal resistances. Wire wound ceramic ele-ments consist of a ceramic body havingthe heat sensitive resistance wire encap-sulated into longitudal bores.

CharacteristicAll versions described conform to the ba-sic values and tolerances of DIN IEC 751for platinum sensors. Sensors with 5 or 10

times the nominal value of 100 Ohm havethe electrical tolerances increased by a fac-tor of 5 and 10 respectively.

StabilityCompared with other temperature sensors,PT precision resistance elements possessgood long term stability at the upper appli-cation limit.

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RTDs

1-510-441-7566 1-800-9-THERM-X 

Industrial Process 

•Standard probe assemblies use 1/2”x1/2” NPT SS fitting brazed.Welded construction is available. Use order code “C”

•Spring loaded assembly is not sealed at process fitting.

• 3-wire teflon is standard for head termination.

(Omit for probes with heads)

Probe StyleIndustrial Process ....... IP

FittingsSee Table “B” on next page forordering code. 1/2” x 1/2” NPTSS fitting (code “A”) is standard.

ElementDin 385 Class A 100 ohm ............. ADin 385 Class B 100 ohm ............. B

Din 385 Class A 1000 ohm............ CDin 385 Class B 1000 ohm............ DJIS 391 Class A 100 ohm.............. EJIS 391 Class B 100 ohm.............. FJIS 391 Class A 1000 ohm............ GJIS 391 Class B 1000 ohm............ H

1/8” ...............183/16” ............3161/4” ...............145/16” ............. 516

Diameter (inches)

“A” Sheath LengthSpecify in inches ............. XX

Lead Option(Omit for probes with heads)

3TT ....... Teflon Jacket 3 Wire4TT ....... Teflon Jacket 4 Wire2IT ........ Individual Teflon 2 Wire3IT ........ Individual Teflon 3 Wire4IT ........ Individual Teflon 4 Wire3GG ...... Fiberglass Jacket 3 Wire4GG ...... Fiberglass Jacket 4 Wire

“A” “B”

Protection Head

“B” Lead Length(Omit for probes with heads)XX ........... Specify in inches

D - IP - - - - -

TerminationST .... Stripped Leads, 36” teflon

leads are standardCA ... Cast Aluminum HeadCI ..... Cast Iron HeadNY ... Nylon Head BlackPW ... Polypropylene Head WhiteEX ... Explosion Proof Head

Transmitter OptionOmit if none needed. See orderinginformation on next page.

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RTDs

1-510-441-7566 1-800-9-THERM-X 

P R I C I N G

* B a s i c

( inc ludes 1s t 12" o f shea th)

1 /8" 3 /16" 1/4" 5 /16"

$ 6 5 $ 6 3 $ 6 0 $ 6 8

A d d ' l S h e a t h A d d e r(per inch) . 15 . 25 .4 5 . 75

E l e m e n t A d d e rA B C, E , G , H D,F

$ 5 N / C $ 6 $ 2

P r o t e c t i o n H e a d A d d e rCA , C I N Y P W E X

$ 2 6 $ 2 2 $ 2 5 $ 5 5

F i t t i n g A d d e rA B C,F ,G D E

N / C $ 2 0 $ 5 $ 4 $ 9

L e a d O p t i o n A d d e r ( p e r f o o t )( f i rs t 36" inc luded in bas ic )

2 I T 2TT,3IT3TT,3 G G

4 I T4TT,4 G G

. 3 0 . 50 . 65 .6 5 . 70

Transmit te r opt ion add $99 for noniso l a ted or $189 for iso la ted .

Industrial Process (Cont’d) 

T a b l e B F I T T I N G S

N P TT h r e a d

M a t e r i a l S h e a t h O D O r d e r C o d e

1 / 2 " x 1 / 2 " 3 1 6 S S . 1 2 5 " t o . 3 1 3 " A

1 / 2 " x 1 / 2 " 3 1 6 S S . 1 2 5 " t o . 2 5 0 " * B

1 / 2 " x 1 / 2 " 3 1 6 S S . 1 2 5 " t o . 3 1 3 " * * C

1 / 2 " S i n g l e 3 1 6 S S . 1 2 5 " t o . 3 1 3 " D

1 / 4 " x 1 / 4 " 3 1 6 S S . 1 8 8 " t o . 2 5 0 " E

1 / 4 " S i n g l e 3 0 4 S S . 0 6 2 " t o . 2 5 0 " F

1 / 8 " S i n g l e 3 0 4 S S . 0 6 2 " t o . 2 5 0 " G

* S p r i n g L o a d e d A s s e mb l y* * 3 1 6 S S w e l d e d f i t t i n g

• Standard assemblies use Class B thinfilmelements and are rated from -50°C (-58°F)to +260°C (500°F). Higher temperature ratedassemblies are available up to 400°C

(752°F). Add “-HT” to p/n suffix.

Discount Schedule

  1 - 9 units Net10 - 24 units 10%25 - 49 units 20%50 and up Call

Standard orientation for single threaded fittings isthreads facing process. Add “X” after fitting ordercode for backwards fitting (threads facing lead end).

Table AS t a n d a r d R a n g e s

RTD

-50 - 50°C

0 - 100°C

0 - 150°C

0 - 100°F

0 - 300°F

0 - 400°F

Consult sales for other ranges

Non-isolated IsolatedInput: PT100 .00385 3-wire RTD PT100 .00385 3 or 4-wire RTD

Range:Adjustable to specific ranges within

-60 to 1120°F / -50 to 550°C-328 to 1832°F / -200 to 1000°CNarrowest range = 18°F / 10°C

Output: 4-20mA 4-20mA or 20-4mA

AmbientTemp.:

-40 to 185°F / -40 to 85°C -40 to 185°F / -40 to 85°C

Power Supply: 6.5 to 32 VDC 6.5 to 36 VDC

PolarityProtection

Yes Yes

Accuracy: ± 0.1% of span ± 0.1% of span

Calib.

Accuracy:

± 0.1% of span max. of 0.2°C or 0.1% of span

Long TermStability

± 0.1% of span/year ± 0.1% of span/year

Connection: up to 12 Awg. wire up to 16 Awg. wire

Transmitter option; 1. I = Isolated or N = Non-isolated 2. & 3. Temp. Range (see table A below) 4. °C or °F

100I 0 C = Isolated, 0-100 degrees C = 4-20mAExample;