12A Series Pneumatic Temperature Transmitters

Transmitter with General Purpose Thermal System

This transmitter uses a Sensor Code 3542. A Sensor Code 3542 is a Class IIIB case compensated

gas-filled thermal system; it has an adjustable union and bendable extension;

the sensor material is AISI Type 316 stainless steel (316 ss); and the diameter of the

sensitive length is 9.53 mm (0.375 in).

12A

Transmitter with Cryogenic Thermal System

This transmitter also uses a Sensor Code 3542. See 12A for Sensor Code 3542

description.

Transmitter with High Temperature Thermal System

This transmitter uses a Sensor Code 3482. A Sensor Code 3482 is a Class IIIB case compensated                                                         

gas-filled thermal system; it has a fixed union and bendable extension; the

sensor material is Inconel; and the diameter of the sensitive length is 9.53 mm (0.375 in).

Transmitter with Sanitary Thermal System 

Sensor Code

Class IIIB case-compensated gas-filled thermal system; plain, bendable extension; 316 ss

sensor material; 9.53 mm (0.375 in) sensitive length diameter

Connectors(a)

16A Bevel Seat Type 

16AMP Clamp Type, excluding nut 

RJT Screw Type (BS 1864), including nut

ISS Screw Type (ISO 2853), including nut 

Clamp Type (ISO 2852), excluding clamp 

DIN Screw Type (DIN 11851), including nut 

Nominal Line Size

25 mm (1 in) 

40 mm (1.5 in) 

50 mm (2 in) 

65 mm (2.5 in) 

80 mm (3 in) 

100 mm (4 in)                                                                                     

Sensor Sensitive Length (X)

75 mm (3 in) 

150 mm (6 in) 

Connecting Tubing Length

1 m (3.5 ft) 

3 m (10 ft) 

Examples: 12A; 12A-C; 12A-H; 12AS-3242S1BRN

12A-C

12A-H

12AS

–3242

S1

S2

S3

S4

S5

S6

A

B

C

D

E

F

R

T

N

P