Maintenance
A7-8 ENVI-MAG Manual
Trouble shooting
Problems Possible Causes Possible Solutions
On/Off key does not
respond (no beep)
Battery not connected Install battery
Battery discharged Charge battery
Fuse blown Disconnect sensor.
Check and replace fuse
in the battery
compartment or in the
External battery pack
depending on which one
you are using.
Instrument shuts off
immediately
Low battery Charge battery.
Fuse blows after the
start of a reading
Short circuit in sensor
cable
Repair sensor cable.
Display is very slow
Display is too cold Turn on the LCD
heater, using the AUX/
LCD button to access
option, if the ambient
temperature is below
minus 15° C.
Display is invisible
Incorrect LCD intensity
setting
1. If no data is in the
instrument, perform
a cold boot.
2. Adjust LCD intensity
using AUX/LCD
button to access
option.
3. Turn on the heater if
below minus 15° C.
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