Yokogawa EXAxt SC450 4-Wire Analyzer for Conductivity/Resis Manual do Utilizador descarregar pdf (Página 20)

IM 12D08N05-01E

Figure 3-9. Sensor wiring diagrams

3-6. Wiring of sensors

General precautions

Generally,signalsfromsensorsareatlowvolt-

age and current level. Thus a lot of care must

betakentoavoidinterference.Beforeconnect-

ing sensor cables to the converter make sure

that following conditions are met:

– the sensor cables are not mounted in

tracks together with high voltage and or

power switching cables

– only standard sensor cable or extension

cable is used

– the converter is mounted within the dis-

tance of the sensor cables (max. 10 m) +

upto60mWF10extensioncable.

– the setup is kept flexible at the sensors end

for easy insertion and retraction of the sen-

sor in the fitting.

Sensor wiring

Refer to figure 3-9, which includes drawings

that outline sensor wiring.

The EXAxt can be used with a wide range of

sensor types. The sensor system fall into two

categories, the ones that use fixed cables and

the ones with separate cables.

To connect sensors with fixed cables, simply

match the terminal numbers in the instrument

with the identification numbers on the cable

ends.

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 70 71

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Yokogawa EXAxt SC450 4-Wire Analyzer for Conductivity/Resis Manual do Utilizador Página 20