Hach-Lange SENSION+, Portable Meter, LPG2500 - Manual (Page 13)

Note: The battery life is decreased when the backlight time is increased.
1. Make sure that the instrument is powered on.
2. Push and immediately push 2 times. The backlight time
flashes.
3. Push or to change the backlight time (range: 3 seconds to
2 minutes).
Maintenance
W A R N I N G
Multiple hazards. Do not disassemble the instrument for maintenance or service.
If the internal components must be cleaned or repaired, contact the
manufacturer.
C A U T I O N
Personal injury hazard. Only qualified personnel should conduct the tasks
described in this section of the manual.
Clean the instrument
N O T I C E
Never use cleaning agents such as turpentine, acetone or similar products to
clean the instrument including the display and accessories.
Clean the exterior of the instrument with a moist cloth and a mild soap
solution.
Store the meter
N O T I C E
To avoid potential damage to the meter from battery leakage, remove the meter
batteries prior to extended periods of non-use.
Replace the batteries
W A R N I N G
Explosion hazard. Incorrect battery installation can cause the release of explosive
gases. Be sure that the batteries are of the same approved chemical type and
are inserted in the correct orientation. Do not mix new and used batteries.
For battery replacement, refer to Figure 10 .
Figure 10 Battery replacement
Troubleshooting
Refer to the following table for common problem messages or
symptoms, possible causes and corrective actions.
English 13