Veris Industries 621 Manual - Manual (Page 6)

Maintenance
Battery Replacement:
The 621 will display a battery 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 halves 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.
Trouble Shooting Guide
Problem Probable Cause
Unit does not zero Zero button has not been
pushed.
Unit still does not zero If reading is greater than
0.05 and constantly
fluctuates return to local
Service Centre.
'Bat' appears on display Replace battery
immediately 9V NEDA
1505 or equivalent
EC Declaration of Conformity
This is to certify that model 610/615/620/625 con-
form to the protection requirements of the council
directive 89/336/EEC, in the approximation of laws of
the member states relating to Electromagnetic com-
patibility by application of the following standards
EN50081-1 1992 Emissions Standard
EN50082-1 1992 Immunity Standard
To ensure conformity with these standards, this
instrument must be operated in accordance with the
instructions and specifications given in this manual.