Met One Instruments LVS-100, User Manual

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MicroVol-1100 User manual 1.6 Troubleshooting
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The sampler is fitted with a number of features to protect it from internal damage.
Some of these features will prevent the sampler from performing as would normally
be expected.
Fuse:
A 2A fuse is soldered on the circuit board inside the MicroVol. Check the fuse
continuity with a multi-meter.
Low Voltage Automatic Shut-off:
Shuts down the pump automatically when supply voltage drops below 11V (nominal).
This feature protects the battery from damage. The MicroVol display and data
collection continues to operate until the battery voltage drops to about 5V, when the
microprocessor powers off.
Battery pack fuse:
A 3.15A (20x5mm) fuse is housed in a waterproof fuse holder on top of the optional
battery pack. Check the fuse continuity with a multi-meter.
Status Menu:
Gives a description of the current status of various parameters. The main screen also
has a single-line status description when the sampler pump is not running, which
gives an indication of why the pump is not running.
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