WIKA T12 - Handbuch (Seite 19)

GB
3211517.07
07/2010
GB/D
WIKA operating instructions temperature transmitter T12 19
Recommended tools for terminal screws:
Model Screwdriver Tightening torque
T12.10 Cross head ('Pozidriv' tip)
size 2 (ISO 8764)
0.4 Nm
T12.30 Slotted, 3 mm x 0.5 mm
(ISO 2380)
0.4 Nm
6.2.1 Power supply / 4 ... 20 mA loop
The T32 is a 2-wire temperature transmitter. Depending on the
version, it can be supplied with various types of power supply.
Connect the positive line of the power supply to the terminal marked
with ⊕, the negative line of the power supply to the terminal marked
with ⊖.
With flexible leads we recommend the use of crimped connector
sleeves.
The model T12 temperature transmitter requires a minimum terminal
voltage of DC 9 V. The load must not be too high, as otherwise, in the
case of relatively high currents, the terminal voltage at the trans-mitter
will be too low.
Maximum permissible load depending on the supply voltage:
Load diagram
6. Commissioning, operation
11289130.01
Voltage U
B
in V
Ex ia Ex nA/nL/ic
1174
913
652
0
0 9 24 30 36 Load
RA
in
Ω