Installation
14
© Lutz-Jesco GmbH 2020
BA-46020-02-V04
Multi-Channel Controller
TOPAX
®
MC
Operating instructions
7.5 Connecting sensors
DANGER!
Mortal danger from electric shock!
Live parts can inflict fatal injuries.
ð
Disconnect the external power supply before opening the water
sampling station or the
TOPAX
®
MC
controller.
ð
Secure the station to prevent it from being switched on again!
Up to four input modules can be connected to the device. A water param-
eter and the temperature can be measured with every module.
Pre-conditions for actions:
ü
The voltage supply has been disconnected and protected against
re-connection.
ü
The housing is open.
Resources required:
@
Sensors
@
Suction connection
Perform the following work steps:
1.
Lead the cable through one of the cable screw connections on the
underside into the interior of the housing.
2.
Connect the wires onto the clamp block of the input modules. Comply
with the terminal plans in the following sections.
ü
Sensor connection completed.
PLEASE NOTE
Electronic distortion of the measurement results.
Incorrect installation of the electrical cables can distort the measure-
ment results. As a result, the control of connected devices can be faulty.
ð
Do not route the connecting cable parallel to the mains and control
connections, and always with a clearance of at least 15 cm. Lay
connection junctions at an angle of 90°.
7.5.1 pH Redox module input circuit board
4
3
2
1
Fig. 8: pH Redox module input circuit board
Terminal Function
Sensors
1
Temperature input
Resistance thermometer
TE110/Pt100
2
Temperature input
3
- (wire with Ø 1.5 mm)
pH single-rod measuring
chain PE110/Redox
single-rod measuring chain
ME110
4
+ (wire with Ø 2 mm)
Tab. 8: Terminal connection of the pH Redox module input circuit board
Ø 2
Ø 1,5
Fig. 9: Connect the cable from the pH or Redox single-rod measuring chain correctly
7.5.2 Potentiostat module input circuit board
4
3
2
1
5
Fig. 10: Potentiostat module input
Terminal Function
Sensors
1
Temperature input
Resistance thermometer
TE110/Pt100
2
Temperature input
3
Measuring electrode
3 electrode potentiostat
4
Counter electrode
5
Reference electrode
Tab. 9: Terminal connection of the potentiostat module input circuit board
Centre conductor
Screen
