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3.4.4
Installation of Coaxial Cable to Guard Terminal XE1
CAUTION!
Maximum length of the coaxial cable 10 m
Incorrect reading due to too long a coaxial cable
Possible consequence: Slight or minor injuries, material damage
The maximum length of the coaxial cable may not exceed 10 m when using redox or
pH sensors. The measured signal can otherwise be falsified by the effects of interfer‐
ence.
If the gap between the pH/redox measuring point and the DULCOMETER
more than 10 metres, then the use of an interposed DULCOTEST
mA pH V1, rH V1 is recommended. The connection is then made via terminal XE4 of
the DULCOMETER
The XE4 (mA input) terminal is a chargeable additional function!
When installing the coaxial cable for the guard terminal XE 1, the allowances shown on
the diagram for stripping insulation from the coaxial cable should be adhered to. Fig. 9
The guard terminal should be tightened until "hand-tight".
®
D1Cb.
D1Cb mounting
®
D1Cb is
®
transducer 4-20
31
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