Maintenance
Battery Replacement:
The 610/615/620/625 will display a ‘BAT’ symbol when the internal 9V battery needs
replacement. Replace battery as follows:
1.
Ensure instrument is switched off
2.
Loosen the six cross head screws on the back of the instrument
3.
Remove the back cover
4.
Remove old battery
5.
Replace with new battery 9V NEDA 1604 or equivalent
6.
Reassemble the instrument in reverse order from above being sure not to trap any
wires between the two helves of the case
7.
Re-fit the six cross head screws being sure not to over tighten
Cleaning:
Use a mild detergent and a slightly damp cloth to clean the surfaces of the
instrument.
page 10
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