16
WIKA operating instructions models DIH50, DIH52
EN
14008548.05 12/2016 EN/DE
CAUTION!
If equipotential bonding currents are to be expected, a ceramic capacitor
(e.g. 1 nF, 1,500 V) must be used for the connection on the evaluation side. The
low-frequency equipotential bonding currents are thus suppressed, but the
high-frequency interference signals remain.
Field indicators models DIH50, DIH52
Open the case cover, push one of the two black fastening clips backwards and pull the
display module upwards. 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).
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.
The following maximum values are applicable:
without
explosion protection: 42 V
with
explosion protection: 30 V
The connected wires must be checked to ensure they are connected properly. Only
well-secured wires can guarantee a fault-free operation.
Recommended tools for terminal screws:
Model
Screwdriver
Tightening torque
DIH50,
DIH52
Cross head ('Pozidriv' tip)
size 2 (ISO 8764)
0.4 Nm
Non-hazardous area
Ex area
black
spring-loaded
push terminals
Voltage supply
Load
Transmitter
DIH50, DIH52
red
7. Electrical connection
