Product and Ordering Information

Table A

Figure 1

RTD Assembly without

Process Fitting

Figure 4

Spring-Loaded RTD

Assembly with 1/2″ NPT

Pipe Nipple Extension

Terminal Head Connected RTD Assemblies 1 | Thermo SensorsTerminal Head Connected RTD Assemblies 2 | Thermo Sensors
Figure 2

RTD Assembly with

1/2″ NPT Process Fitting

Figure 5

Spring-Loaded RTD

Assembly with 1/2″ NPT

Hex Fitting/Union

Nipple Extension

Terminal Head Connected RTD Assemblies 3 | Thermo SensorsTerminal Head Connected RTD Assemblies 4 | Thermo Sensors
Figure 3

Spring-Loaded RTD

Assembly with 1/2″ NPT

Process Fitting

Figure 6

Spring-Loaded RTD

Assembly with 1/2″ NPT

Nipple/Union/Nipple Extension

Terminal Head Connected RTD Assemblies 5 | Thermo SensorsTerminal Head Connected RTD Assemblies 6 | Thermo Sensors

* For custom extension length, add desired length as suffix to basic order code. Variable lengths only available in figure 4, 5 and 6

Example: 5046, for 6″ long extension.

** Fitting/Extension shown in figures 1, 2, 3, & 5 only available in stainless steel.

– If connection head is not required, simply insert figure number as basic order code Example: 3

How to Order

Pgs. 6-8  Page 9     Page 10  TW Section
Basic Order CodeSensor DiameterElementToleranceTemp. RangeSheath MateLead Conn.“L”
Length
OptionsOrder Code for

Thermowell

If required

(see Thermowell

section)

1044A1B1C122AS
Table ATable BTable CTable DTable ETable FTable GTable HTable I
Type of HeadHead MaterialBasic Order Code
Figure 1Figure 2Figure 3Figure 4Figure 5Figure 6

Terminal Head Connected RTD Assemblies 7 | Thermo Sensors

Industrial

Weatherproof

Screw Cover Head

Cast Aluminum100200300400500600

Terminal Head Connected RTD Assemblies 8 | Thermo Sensors

Epoxy Coated

Weatherproof

Screw Cover Head

Cast Iron102202302402502602

Terminal Head Connected RTD Assemblies 9 | Thermo Sensors

General Purpose

Weatherproof

Screw Cover Head

For Flip Top Style, add suffix “F” to basic order code

Cast Aluminum104204304404504604

Terminal Head Connected RTD Assemblies 10 | Thermo Sensors

Corrosion Resistant

Weatherproof Screw

Cover Head

For Flip Top Style, add suffix “F” to basic order code

Nylon106206306406506606

Terminal Head Connected RTD Assemblies 11 | Thermo Sensors

CSA / ATEX / FM Approved Explosion Proof

Head meets NEC Class I

Div I Groups B, C, D

Class II Div I, Groups E, F, G

NEMA 4X, 7, 9,

II2G, Ex d, IIC, Gb,

II2 D, Ex tb, IIIC Db, IECEx

Cast Aluminum108208308408508608
316 Stainless Steel110210310410510610

RTD Assembly Specifications

Table B (sensor diameter)

Sensor DiameterOrder Code
1/8″(.125″)2
3/16″(.188″)3
1/4″(.250″)STD4
5/16″(.312″)5
3/8″(.375″)6

 

Table C (element)

Resistance

0°C

MaterialTemperature Coefficient/Alpha (a)Order Code
Single ElementDual Element
100ΩPlatinum.00385Ω/Ω°CA2A
100ΩPlatinum.003916Ω/Ω°CB2B
100ΩPlatinum.003902Ω/Ω°CC2C

98.129Ω

(100Ωnom-)

Platinum

Sama Standard

RC21-4-1966

.00392Ω/Ω°CD2D
120ΩNickel.00672Ω/Ω°CE2E
9.035ΩCopper.00427Ω/Ω°CF2F

 

Table D (tolerance)

Accuracy at 0°COrder Code
± .12%Class B1
± .06%Class A2
± .03%Lab Grade3
± .02%Lab Grade4
± .01%Lab Grade5

 

Table E (temperature range)

Temperature RangeOrder Code

-50 to +250 Deg. C

-58 to +482 Deg. F

A

-50 to +400 Deg. C

-58 to +752 Deg. F

B

-50 to +660 Deg. C

-58 to +1220 Deg. F

C

 

Table F (sheath material)

Sheath MaterialOrder Code
316 SS1
Alloy 6002
Alloy C-2763

 

Table G (lead connection)

2-WireOrder Code A
Terminal Head Connected RTD Assemblies 12 | Thermo Sensors
3-WireOrder Code B
Terminal Head Connected RTD Assemblies 13 | Thermo Sensors
4-WireOrder Code C
Terminal Head Connected RTD Assemblies 14 | Thermo Sensors

 

Table H (length)

Specify “L” in Inches

Length Not required when Thermowell is used.

 

Optional Connections

(For extended lead types)

Table I (options)

 DescriptionOrder Code
Terminal Head Connected RTD Assemblies 15 | Thermo SensorsSpade Lugs for #8 ScrewL
Terminal Head Connected RTD Assemblies 16 | Thermo SensorsMale PlugM

The connectors shown are for 3-wire single element assemblies.

Two – 2 Pin connectors mounted in tandem will be furnished for both styles of 4-wire single element assemblies.

Dual element assemblies will have the same connector arrangements except Doubled.

Terminal Head Connected RTD Assemblies 17 | Thermo Sensors
Female JackF
Terminal Head Connected RTD Assemblies 18 | Thermo SensorsWatertight connector1/2″ NPTW1
3/4″ NPTW3
Terminal Head Connected RTD Assemblies 19 | Thermo SensorsWatertight connector with lugs for #8 screws1/2″ NPTWL1
3/4″ NPTWL3

 

Optional Mounting Fittings
DescriptionNPTOrder Code
Terminal Head Connected RTD Assemblies 20 | Thermo Sensors1/8″1AS
1/4″2AS
3/8″3AS
1/2″4AS
3/4″6AS

For FEP readjustable insert, replace “A” with “R”

Example: 4RS

  

 

Optional Spring-Loaded Devices
DescriptionOrder Code

Terminal Head Connected RTD Assemblies 21 | Thermo Sensors

Adjustable Spring

FP 275

Terminal Head Connected RTD Assemblies 22 | Thermo Sensors

1/2″ NPT Double threaded adjustable hex bushing

FP 240

Terminal Head Connected RTD Assemblies 23 | Thermo Sensors

1/2″ NPT single threaded adjustable hex bushing

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