WIKA T19 - Handbuch (Seite 10)

10
2143014.05 06/2014 GB/D
GB
WIKA operating instructions temperature transmitter, model T19
5.1 Sensor input Pt100/Pt1000
Head mounting version:
Rail mounting version:
5.2 Connect 4 ... 20 mA-loop
The electrical connection of model T19.10 (head mounting version) is
made through the ⊕ and ⊖ terminals, while model T19.30 (rail mounting
version) is connected through the terminals 4 and 5 (please refer to
page 10).
■ Maximum permissible terminal voltage: 30 V
■ Maximum permissible load R
A
(dependent upon the loop power
supply voltage U
B
) 1000 Ω at 30 V power supply U
B
700 Ω at 24 V power supply U
B
R
A
≤ (U
B
- 10 V) / 0.02 A with R
A
in Ω and U
B
in V
6. Maintenance
The temperature transmitters described here are maintenance-free!
The electronics incorporate no components which could be repaired or
replaced. Depending upon operating conditions, it may be advisable to
check the adjustment yearly. Adjustment as per section 7.
Input Input 4 ... 20 mA-loop
5. Electrical connections / 6. Maintenance