Campbell CDM-VW300 Series Manuál stáhnout pdf (Strana 49)

CDM-VW300 Series Dynamic Vibrating-Wire Analyzers

vibrating-wire sensors operate equally well with either polarity position of the

two signal wires. Two coil connections (C) are provided on each channel on

the CDM-VW300 to which these leads are connected.

FIGURE 7-6. Three-wire vibrating-wire sensor connection

The third lead is the shield wire, or sensor ground, and should be connected to

the ground connection corresponding to the measurement channel.

Coil

Shield / Sensor Ground

Vibrating-Wire Sensor

Thermistor

FIGURE 7-7. Five-wire, vibrating-wire sensors leads

For sensors with five lead wires, three wires operate as described previously

for a three-wire configuration. The additional two leads are thermistor leads,

and, as illustrated in FIGURE 7-7 and FIGURE 7-8, can be wired to the

thermistor (T) channels on the analyzer.

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Campbell CDM-VW300 Series Manuál Strana 49