Endress+Hauser StamoLys CA 71 HY, Operating Instructions Manual

Page: 18 / 60

Wiring Stamolys CA71HY
18 Hauser
4.2 Signal connections
4.2.1 Shielding of the analog outputs
The interference suppressor dampens interference from electromagnetic effects on control, power
and signal lines.
After connecting the data transfer cables, clip the interference suppressor (in scope of delivery) onto
the cable cores (not onto the outer insulation of the cable!). You have to route the cable screen
outside around the interference suppressor and connect it to PE (brass screw with bolt) at the top
right in the connection compartment (
→
å
18).
!
Note!
With the two-channel version (data cables at analog output 1 and analog output 2), route the cable
cores of the two data cables through the interference suppressor.
4.2.2 One-channel version
a0001746
Fig. 18: Interference protection of the signal cable
1 Cable shield (at PE in connection compartment!)
2 Signal cable
3 Interference suppressor
4 Cable cores of the signal cable
1 2
3 4
Connection Designation Function
Signal inputs
Leak Liquid has collected in the drip pan
No sample No sample available, measurement is not started,
display flashes
Signal outputs
AV 1 Alarm value 1 exceeded or undershot
AV 2 Alarm value 2 exceeded or undershot
Fault Error message, can be retrieved using operation menu
Measurement end Displays "Measurement finished" (5 s)
Analog output
l-1 channel 1 0 or 4 mA = start of measuring range
20 mA = end of measuring range