MKS 670B - Test B: Localizing Malfunctions to the Electronics Unit; Table 38: Electronics Unit Voltage Check

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Test B: Localizing Malfunctions to the Electronics Unit
1. Disconnect the transducer cable from the 670 instrument and check voltages at the Head
(upper) connector on the Signal Conditioner Board.
Electronics Unit Voltage Check
Connector Pin Voltage Function
13 +12 to +13 Transducer electronics supply voltage
14 +12 to +13 System Check command
15 6 Volts RMS Excitation voltage
Table 38: Electronics Unit Voltage Check
2. Repeat step 5 of Test A at the transducer connection.
The results should be the same.
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