WIKA TR21-C - Manual (Page 9)

14006814.01 05/2011 GB/D/F/E
WIKA operating instructions model TR21 9
GB
Power supply effect ± 0.025 % / V
Electromagnetic compatibility
(EMC)
2004/108/EC, EN 61326 emission (Group 1, Class B) and interfe-
rence Immunity (industrial application) 6)
Temperature units configurable °C, °F, K
Info data TAG No., descriptor and message can be stored in transmitter
Configuration and calibration
data
permanently stored in EEPROM
Electrical connection M12 x 1, 4-pin circular connector
Ambient conditions
Ambient and storage temperature -40 … +85 °C
Case ingress protection IP 68 7) / IP 69K per IEC 529 / EN 60529
The stated ingress protection only applies when plugged in
using mating connectors that have the appropriate ingress
protection.
Thermowell
Thermowell model TW22 (models TR21-A, TR21-C)
Surface finish Standard: R
a
< 0.8 µm
Optional: R
a
< 0.8 µm electropolished, R
a
< 0.4 µm,
R
a
< 0.4 µm electropolished
Materials Stainless steel 1.4435 (316L)
Connection to the thermometer Model TR21-A: G 3/8"
Model TR21-C: welded
Thermowell diameter 6 mm, optional: probe tip reduced to 4.5 mm (from U
1
> 25 mm)
Thermowell model TW61 (model TR21-B)
Surface finish Standard: R
a
< 0.8 µm
Optional: R
a
< 0.8 µm electropolished, R
a
< 0.4 µm,
R
a
< 0.4 µm electropolished
Materials Stainless steel 1.4435
Connection to the thermometer G 3/8"
6) Use resistance thermometers with shielded cable, and ground the shield on at least one end of the lead, if the lines are longer than
30 m or leave the building
7) 1 MWs/ 24 h
Available documentation/certification
■ 2.2 Test certificate
■ 3.1 Acceptance test certificate
■ DKD certificate
For further specifications see WIKA data sheets TE 60.26, TE 60.27 and TE 60.28 as well
as order documentation.
3. Specifications