4 Maintenance
Changing the batteries
Maintenance
When the battery symbol appears in the display, the batter-
ies need replacement. However, the meter can still be used
for a few days. When the battery voltage continues to drop,
the meter will switch itself off.
Never change the batteries within a hazardous area. Use
only the batteries specified on page 5. Make sure that
the meter is carefully closed again and that the protective
cover is properly mounted on the meter after changing the
batteries (see also “Additional safety notes for ATEX“, page
4).
To replace the batteries, you need 3 alkaline AA cells and a
screwdriver (either straight-blade or Phillips).
• Close the protective cover and remove the sensor
container.
• Lift the hook, unscrew the four screws on the back of the
meter and remove the lid.
• Remove the old batteries from the battery holder.
• Insert the new batteries in the specified direction.
• Make sure the protective cover is in the notches provided
and the rubber seal is correctly seated, especially near the
sensor socket.
• Remount the lid and secure it with the screws.
Be sure to tighten the screws thoroughly.
• Remount the sensor container.
Note
When changing the batteries, all calibration and configura-
tion data are retained. The time and date must be reset. The
current memory location number of the measured-value
memory is set to
00
.
