Operating instructions

Section 3: Instrument

dition ceases to exist, the audio indicator is automatically re-enabled, ready to be activated on

next alarm condition.

• A momentary TEST button on the front panel allows testing both the visual and audible indi-

cators.

3.6 Troubleshooting the Instrument

This instrument performs diagnostic tests on power up as well as once every two minutes. The

table that follows, depicts all possible error/unexpected messages that may be displayed on the

instrument. For each message the table has explanations for the reason, and if necessary a sug-

gested action to remedy it.

The instrument contains a fuse which may open if the instrument is subjected to voltages exceed-

ing the specifications. Under these circumstances the unit display will be blank and the instrument

will not draw any current when powered up. The user may replace the fuse with a comparable

0.5A, 250V fast acting fuse, to locate the fuse refer to the 8800 Series Trace Moisture Analyzer

mechanical drawing in Appendix E.