Catalogo Termometro Bimetalico[1]

8/18/2019 Catalogo Termometro Bimetalico[1]

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WARNING:All bimetal thermometers should be selected considering the media and the ambient operating conditions. Improper application can be detrimental to the thermometer, cause failure and pos- sibly personal injury or property damage. Inaccuracies resulting from improper setting of the external adjustment by the user may cause personal injury or property damage. Consult ASME B40.3 for guidance in selection and use of bimetal thermometers .

TEMPERATURE RANGESStandard Fahrenheit and Celsius ranges havebeen established to encompass all normaltemperature measurement requirements. Abimetal thermometer can be used at an oper-ating temperature anywhere throughout its dialrange. Provision should be made for extremetemperature conditions. No bimetal thermome-

ter should be exposed continuously to processtemperatures over 800°F (425°C).

OPERATING CONDITIONSThe maximum ambient temperature of thecase should be no more than 200 °F (95 °C);liquid filled 150 °F (65 °C). Temperatures beyondthis value may cause discoloration of the dialor result in increased pressure inside the cas-ing which could ultimately lead to the failure ofthe window. The lowest ambient temperatureshould not exceed – 40°F ( – 40 °C).

THERMOWELLSThermowells must be used on any applicationwhere the stem of the bimetal thermometermay be exposed to pressure, corrosive fluidsor high velocity. Additionally, the use of a ther-mowell permits instrument interchange or cali-bration check without disturbing or closingdown the process.

POINTERSThe pointers are balanced to close tolerancesand the paint finishes are controlled to assurelong-term stability under adverse ultravioletconditions.

CASESThere are three case styles. The CI series hasno adjustment but is hermetically sealed. TheEI series has an external adjustment and ishermetically sealed. The EL series providesthe same features as the EI plus the addedbenefit of liquid filling. The instruments areleak tested to ensure the integrity of the joints.

Case and stem material is 304 stainless steel.

COILSThe bimetallic coils are carefully wound andinspected. Each is heat treated for optimumstability and overtemperature capability.

BEARINGSThe bearings are made of Teflon or other lowfriction material.

SHAFTSShafts are made of specially drawn stainlesssteel wire with a very smooth finish.

DIALSThe dials are based on computer-calculatedtemperature deflection data and have theMaxivision ® format to minimize parallax error.

WINDOWSThe standard windows are heavy-duty glass.Plastic and shatterproof glass are optional.

Product Selection Information

Process

ConnectionExternal

Adjustment

Stem

CoilShaft

Case Bushing

Bearing

Inner DialDial Ring Ring

Pointer

WindowScrewsGearPinion

Gasket


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The complete line of Ashcroft industrialbimetal thermometers and accessoriesprovides quality choices for your temper-ature applications. There is a long historyof superior quality in engineering, manu-facturing and customer service of theseproducts. Each Ashcroft industrialbimetal thermometer is backedby a limited five year warranty.

Each instrument is man-ufactured to a standardaccuracy of 1% of span(ASME B40.3, Grade A)traceable to the NationalInstitute of Standards andTechnology (NIST). Thebimetal coils are heat treat-

ed for stability and overtem-perature capability. A singlehelix is used to reduce lagtime. The bearings are made of alow-friction long-life material. Theshafts are made of specially drawn stain-less steel with a very smooth finish. All

joints are welded, and the weld betweenthe stem and the outlet is located at thebottom of the threads to eliminate thepossibility of crevice corrosion.

Silicone dampening is included forimproved vibration resistance. TheAshcroft Maxivision ® dial eliminatesparallax error by placing the pointer inthe same plane as the graduations. Thedial can be rotated 360 degrees and canbe angled 180 degrees with theEveryangle ™ connection.

To meet your emergency deliveryrequirements, Dresser InstrumentDivision offers the GoldService sm delivery program.Ashcroft industrial bimetalthermometers can beshipped in 2 to 5 workingdays from ourStratford,Connecticut, USA,manufacturing plant.We also have an exten-sive stocking distributornetwork throughout theUnited States andinternational locations.

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EI Case StyleThis series has a hermetically sealed

case and external adjustment.Connection locations are rear, lower andEveryangle. The hermetic seal prevents

entry of moisture into the casing, mini-mizing the possibility of icing or

fogging inside the case.

CI Case StyleThis style is tamper resis-

tant and hermeticallysealed. Connection

locations are rear andlower. The CI Series

was designed forapplications where

external adjustment

or pointer reset arenot desired. Hermetic

sealing reduces theproblems created by

moisture enteringthe case.

EL Case StyleThis series is liquid filled –

prolonging instrument life. Potentialwear problems caused by excessive

vibration are minimized throughdampening, and the liquid medium

improves readability. Externaladjustment is standard in

the rear of the case.

Everyangle CaseConnection

This design providesmaximum utility. The

entire dial face canbe rotated 360 degrees,and angled 180 degrees

by positioning theharness on the

back of the case.The instrument canbe installed almost

anywhere and can beadjusted so that

the dial can beeasily read.

Introduction

Everyangle™

EL

CI EI


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How to Order

To specify the exact thermometer desired, select entr iesfrom appropriate charts as shown in the example below.

30 EI 60 R 040 XNH 0/200 °F1 2 3 4 5 6 7

1 CASE SIZE 2 STYLE 3 CONNECTION 4 CONN. LOCATION 5 STEM LENGTH

Dia. Code Code Conn. Code Location Code “S ” Length CodePlain 40

2 ˝ 20 CI Pointed 50 Rear REI Plain1 ⁄ 4 NPT 60

CIEI 1 ⁄ 2 NPT 60 Rear REL

3 ˝ 30 CIEI1 ⁄ 2 NPT 60 Lower L

1 ⁄ 2 NPT 601 ⁄ 2 NPT 42

Everyangle EEI UnionCIEI 1 ⁄ 2 NPT 60 Rear REL

5 ˝ 50 CIEI1 ⁄ 2 NPT 60 Lower L

1 ⁄ 2 NPT 60EI 1 ⁄ 2 NPT 42

Everyangle EEL Union

7A EI & CI SERIES TEMPERATURE RANGES, SINGLE SCALE

Figure Figure°F °/Div. Interval °C °/Div. Interval

– 80/120 2 20 – 50/50 1 10 – 20/120 1 2 20 – 20/120 2 20

30/130 1 1 10 0/50 1 1 50/200 2 20 0/100 1 100/250 2 50 10/150 2 20

50/300 2 50 0/200 2 2050/400 5 50 0/300 5 5050/550 5 50 50/450 2,3 5 50

200/700 2 5 50 100/500 2,3 5 50100/800 2 10 100200/1000 2,3 10 100

6 OPTIONS

Code Description

XCS Dual scale 4

XDM Service markingprinted on dial

XNH Stainless steel tagXNN Paper tagXPD Plastic window 5

XSG Shatterproof glass5

X3B 3 ⁄ 8 ˝ stem diameterwith 1 ⁄ 2 NPT conn. 6

X02 1 ⁄ 4 NPT when1 ⁄ 2 NPT is standard 7

X04 1 ⁄ 2 NPT when1 ⁄ 4 NPT is standard 8

21 ⁄ 2 ˝ 025

4 ˝ 040

6 ˝ 060

9 ˝ 090

12 ˝ 120

15 ˝ 150

18 ˝ 180

24 ˝ 240

7B EL SERIES TEMPERATURE RANGES, SINGLE SCALE

Figure Figure°F °/Div. Interval °C °/Div. Interval

– 40/160 2 20 – 20/120 2 20 – 20/120 1 2 20 – 10/110 2 10

30/130 1 1 10 0/50 1 1 50/200 2 20 0/100 1 100/250 2 50 10/150 2 20

50/300 2 50 0/300 5 5050/550 5 50

NOTES1. Minimum stem length for lower connection and Everyangle is 4. ˝ 2. Minimum stem length for these ranges is 4. ˝ 3. Satisfactory for continuous service up to 800 °F or 425 °C. Can be

used for intermittent service from 800 ° to 1000 °F, or 425 ° to 500 °C.4. Dual scale ranges are available on 3 ˝ and 5 ˝ case only.

See table 7C.5. Not available on EL liquid filled thermometers. Lexan is the standard

window on EL series.6. Not available on 2 ˝ case.7. Only availble on rear connect.8. Not available with 2 ˝ type EI case.


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Case Styles and Features

7C DUAL SCALES(XCS) are available in 3 ˝ and 5 ˝ dial sizes in the following ranges

(where applicable):

Inner °F Outer °C

– 80/120 – 60/50 – 40/120 – 40/50 – 40/160 – 40/70 – 20/120 1 – 30/50 1

0/200 – 20/90

0/250 – 20/12030/130 1 0/55 1

50/300 10/15050/400 10/20050/550 10/290

100/800 50/400200/700 2 100/370 2

200/1000 2,3 100/550 2,3

EI & CI SERIESOVERTEMPERATURE LIMITS

Top of Maximum ProcessRange °F Overtemperature

Up to 250 100% of Span250/550 50% of Span

550/1000 800 °F 3

EL SERIESOVERTEMPERATURE LIMITS

Top of Maximum ProcessRange °F Overtemperature

Up to 160 100% of Span160/300 °F 300 °F300/550 °F 550 °F

• Maximum ambient temperature forEI and CI Series is 200 °F or 95 °C.

• Maximum ambient temperature forEL Series is 150 °F or 65 °C.

• Use Ashcroft Duratemp ® thermome-ter for ranges above and belowthose listed in the range charts.

EI Standard Specifications

• Hermetic seal

• External adjustment

• Maxivision dial

• 1% full-span accuracy

• All-welded stainless steel construction

• Silicone on the coil provides vibrationdampening and superior response time

• Heavy-duty glass is standard; plastic orshatterproof glass is optional

CI Standard Specifications

• Hermetic seal

• Tamper resistant, no adjustment

• Maxivision dial



• Silicone on the coil provides vibrationdampening and superior response time

• Heavy-duty glass is standard; plastic orshatterproof glass is optional

EL Standard Specifications

• Silicone liquid filled

• External adjustment

• Durable polycarbonate window

• Maxivision dial



Everyangle – Case Connection

The Ashcroft Everyangle industrial bimetalthermometer dial face with Maxivision dialcan be rotated 360 degrees and angled 180degrees. It is available in the EI and EL (5 ˝ only) series with either a threaded orcompression type union connection.

This design provides maximum utility. Sincethe entire case can be rotated and angled,the instrument can be installed almost any-where and adjusted so that the dial face can

be easily read.


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Case Dimensions

Weight in ounces 3S – 2 1 ⁄ 2 ˝

Case Series

Case Dial Connection

Series Size Location A B C D E G H S NPT Hex CI EI EL

CI, EI 2 ˝ Rear 23 ⁄ 32 3 ⁄ 8 5 ⁄ 16 – – – – – 2 – 11 ⁄ 16 41 ⁄ 2 41 ⁄ 2 – (Plain) (53) (10) (8)

CI, EI 2 ˝ Rear (Plain, 23 ⁄ 32 3 ⁄ 8 5 ⁄ 16 – – – – – 2 – 11 ⁄ 16 41 ⁄ 2 41 ⁄ 2 – pointed stem) (53) (10) (8)

CI, EI 2 ˝ Rear 23 ⁄ 32 3 ⁄ 8 5 ⁄ 16 – – – – – 2 1 ⁄ 4 11 ⁄ 16 41 ⁄ 2 41 ⁄ 2 – (Threaded) (53) (10) (8)

CI, EI, EL 3 ˝ Rear 35 ⁄ 32 19 ⁄ 32 5 ⁄ 16 – – – – – 2 1 ⁄ 2 7 ⁄ 8 7 7 8(80) (15) (8)

CI, EI 3 ˝ Lower 35 ⁄ 32 127 ⁄ 32 – 2

5 ⁄ 8 1 ⁄ 4 – – – 2 1 ⁄ 2 7 ⁄ 8 11 11 – (80) (47) (67) (6)

EI 3 ˝ Everyangle 35 ⁄ 32

19 ⁄ 32 – – – 1

21 ⁄ 32 3

7 ⁄ 16 – 2 1 ⁄ 2 7 ⁄ 8 – 10 – (80) (15) (42) (87)

CI, EI, EL 5 ˝ Rear 51 ⁄ 32 23 ⁄ 32 5 ⁄ 16 – – – – – 2 1 ⁄ 2 7 ⁄ 8 15 16 18(128) (18) (8)

CI, EI 5 ˝ Lower 51 ⁄ 32 115 ⁄ 16 – 3

5 ⁄ 8 1 ⁄ 4 – – – 2 1 ⁄ 2 7 ⁄ 8 24 26 – (128) (49) (92) (6)

EI, EL 5 ˝ Everyangle 51 ⁄ 16 23 ⁄ 32 – – – 1

7 ⁄ 8 39 ⁄ 16 – 2 1 ⁄ 2 7 ⁄ 8 – 25 28(128) (18) (48) (91)

NOTES1 Figures in parenthesis ( ) are in millimeters. All other dimensions are in inches.2 Standard “S ” dimensions are 2 1 ⁄ 2, 4, 6, 9, 12, 15, 18 and 24 inches.

Standard stem diameter is 1 ⁄ 4 inch.

3 Add 1 oz. for every 2 inches of stem length.

S

CB

A

20EI60R

S

CB

A20EI40R

S

C

B

A

20EI50R

S

CB

A

20CI60R

S

CB

A

20CI40R

S

C

B

A20CI50R

S

CB

A

30EI60R30EL60R50EI60R50EL60R

S

A

C

B

30CI60R50CI60R

G

B

H

S

A

30EI60E50EI60E50EL60E

G B

H

S

A

1.00 "

30EI42E50EI42E50EL42E

A

B

D

E

S

30EI60L50EI60L

A

B

D

S

E

30CI60L50CI60L


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Thermowells

Thermowells must be used whenever anAshcroft bimetal thermometer is installed ona pressurized application or where pressure,

high velocity or corrosive media are present. STANDARD CONFIGURATION LAGGING EXTENSIONType: Uniform (straight) shank, threadedBore Size: 0.385ProcessConnection: 3 ⁄ 4, 1 NPTMaterials: Brass, carbon steel

304 stainless steel316 stainless steel

Type: Stepped shank, threadedBore Size: 0.260ProcessConnection: 1 ⁄ 2, 3 ⁄ 4, 1 NPTMaterials: Brass, carbon steel


Type: Tapered shank, threadedBore Size: 0.260, 0.385ProcessConnection: 1 ⁄ 2, 3 ⁄ 4, 1 NPTMaterials: Brass, carbon steel


Type: Tapered shank, socket weldBore Size: 0.260, 0.385ProcessConnection: 3 ⁄ 4, ˝ 1 ˝ pipeMaterials: Carbon steel


Type: Tapered shank, Van StoneBore Size: 0.260, 0.385ProcessConnection: 1, ˝ 1 1 ⁄ 2 ˝ pipeMaterials: 304 stainless steel

316 stainless steel

Type: Tapered shank, weld-inBore Size: 0.260, 0.385

ProcessConnection: 11 ⁄ 2 ˝ diameterMaterials: 304 stainless steel

316 stainless steel

Type: Tapered shank, flangedBore Size: 0.260, 0.385ProcessConnection: 1, ˝ 1 1 ⁄ 2, ˝ 2 ˝ pipeMaterials: 304 stainless steel

316 stainless steel


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All specifications are subject to change without notice.All sales subject to standard terms and conditions.

© Instrument Division, Dresser Equipment Group, Inc. 11/9720MWP-4P3/01-1P3/95

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Germany Tel: 49-2401-8080Fax: 49-2401-7027

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Documents

Catalogo Termometro Bimetalico[1]