Electrical connection Liquisys M CCM223/253
26 Endress+Hauser
If you are using glass electrodes with the panel-mounted device, you have to terminate the
measuring cable with a BNC connector. A solder-free BNC connector is supplied with the
device. To do this, proceed as follows:
1. Cut off end ferrules 2 and 3 of the coaxial cable.
A0005744
16 Cable CPK1: device connection
1 Coax cable
2 Inner shield BK (ref)
3 Inner coax (pH / mV)
4 Strand BN (PA)
2. Push the cable gland 5 and the washer 6 onto the
coaxial cable.
5 6
5 6
7
8
14
13 (0.51)
16 (0.63)
A0005745
17 Terminating the pH connecting cable for
mounting the BNC elbow plug. Dimensions in
mm (inch)
3. Remove the insulation (13 mm (0.51")) and screw the
clamping ring 7 onto the insulation.
Parts 5 to 7 are supplied with the BNC
connector for cable diameters 3.2 mm and
5 mm.
4. Fold the braided shield 8 of the shield over the
clamping ring and cut off the excess material.
5. There is a semiconductor layer 14 (conductive
membrane) between the inner insulation and the
braided shield 8. Strip this semiconductor layer as far
as the braided shield.
6. Remove the inner insulation (4 mm (0.16")), fit end
ferrule 13 on the stripped inner conductor and secure
the end ferrule with a crimping pliers.
A0005746
18 Terminating the pH connecting cable for
mounting the BNC elbow plug. Dimensions in
mm (inch)
7. Push the BNC connector housing 9 over the cable. The
inner conductor must be located on the clamping
surface 10 of the connector.
A0005747
19 Mounting the pH connecting cable in the BNC
elbow plug
8. Tighten the cable gland 5.
9. Insert the clamp element 11 and screw in the
connector cover 12. This creates a safe connection
between the inner conductor and the connector pin.
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