5.Troubleshooting

Listed below are a few commonly experienced problems and remedial action. Contact the factory should a problem arise not explained herein.

Symptom: Unit will not come on

□Internal batteries are either dead or installed backwards.

Symptom: Vibrating wire gauge measurement shows dashes

□Check alligator clip connections to vibrating wire gauge leads. if okay, check gauge with ohmmeter. It should read between 90 and 180 ohms. If gauge resistance is okay, check readout with another gauge. If it still does not work, consult the factory to schedule return and repair of readout.

Symptom: Vibrating wire gauge reading unstable

□Improper position selected. Verify gauge model number against the recommended setting (see Table 2 in Section 3.1). If position setting is correct, the gauge is either marginal or there may be a strong source of electromagnetic interference nearby.

Symptom: Thermistor measurement shows dashes

□Check alligator clip connections to thermistor leads. If okay, check thermistor with ohmmeter. It should read between 10K ohms and 2.4K ohms (0 to +30 degrees Celsius). If the thermistor checks out okay, consult factory to schedule repair of readout. Note: dashes will display if no thermistor is connected.

Symptom: Display shows weird characters

□Switch the GK-404 to the ON setting while pushing the Cfg and Pos buttons at the same time, to restore the unit to its factory default settings.