WIKA TIF50 Betriebsanleitung Seite 21

7. Electrical connection
Maximum permissible load depending on the supply voltage:
Load diagram
1239
1152
717
456
0
0
Voltage U
For the power supply, use an energy-limited electrical circuit (EN/UL/IEC 61010-1,
section 8.3) using the following maximum values for the power supply:
for U
= 42 V (DC): 5 A
B
For the external power supply a separate switch is required.
The power supply is connected at the front via the Philips screws of the display
module. Connect the positive pole of the power supply to the terminal marked
with ⊕ and the negative pole of the power supply to the terminal marked with ⊖.
The signal line of the transmitter is to be connected to the terminal blocks inside the field
case. To do so, connect the positive pole of the signal line to the terminal marked with ⊕
(red cable) and the negative pole of the signal line to the terminal marked with ⊖ (black
cable).
Non-hazardous area
Voltage supply
Load
With flexible leads we recommend the use of crimped
connector sleeves.
The integrated reverse polarity protection (wrong
polarity on the terminals ⊕ and ⊖) prevents the digital
indicator from damage.
WIKA operating instructions models TIF50, TIF52
13,5 24
in V
B
Ex area
DIH50-B
30 40 42
Ex ia
Transmitter
red
black
EN
21