Wiring
Liquisys M CPM223/253
20
Hauser
Field instrument measuring cable connection
Proceed as follows to connect a pH-electrode to the field instrument:
1.
Open the housing cover to access the terminal block in the connection compartment.
2.
Break the punching of a cable gland from the housing, mount a PG gland and guide the cable
through this Pg gland.
3.
Connect the cable in accordance with the terminal assignment .
4.
Tighten the Pg gland.
"
Caution!
Make sure to protect the connectors, cable ends and terminals against moisture as this could result
in incorrect measurement!
Panel-mounted instrument measuring cable connection
To connect a pH electrode to the panel-mounted instrument, connect the cable in accordance with
the terminal assignment to the terminals on the rear of the device.
If you are using glass electrodes with the panel-mounted instrument, you have to terminate the
measuring cable with a BNC connector. A solder-free BNC connector is supplied with the device.
Proceed as follows:
1. Cut off end sleeves 2 and 3 of the coaxial
cable (
C07-CPM223xx-04-06-00-xx-013.eps
Fig. 15:
Cable CPK1: device connection
1
Coaxial cable
2
Inner screen BK (ref.)
3
Inner coax (pH / mV)
4
Strand BN (PM)
2. Push the cable gland 5 and the washer 6 onto
the coaxial cable.
3. Remove the insulation (13 mm(0.51")) and
screw the clamping ring 7 onto the insulation.
!
Note!
Parts 5 to 7 are supplied with the BNC
connector for cable diameters 3.2 mm (0.13")
and 5 mm (0.20").
4. Fold the braided screen 8 of the screen over
the clamping ring and cut off the excess
material.
5. There is a semi-conductor layer 14
(conductive foil) between the inner insulation
and the braided screen 8. Strip this
semi-conductor layer to the braided screen.
C07-CPM223xx-04-06-00-en-014.eps
Fig. 16:
Terminating the pH connecting cable for
mounting the BNC elbow plug
6. Remove the inner insulation (4 mm (0.16")).
7. Position end sleeve 13 onto the stripped inner
conductor and secure the end sleeve with a
crimping pliers.
C07-CPM223xx-04-06-00-en-015.eps
Fig. 17:
Terminating the pH connecting cable for
mounting the BNC elbow plug
3
4
1
2
5
6
5
6
7
8
14
13 / 0.51
16 / 0.63
13
4 /
0.16