JUMO LOGOSCREEN, Operating Instructions Manual

Page: 57 / 68

57
3 Operation and visualization
Error The following errors may occur:
Error Description
none Instrument OK
Data lost A discharge of the lithium battery/storage
capacitor occurred during the last lengthy power
interruption.
Consequently, the measurement data stored up to
now in the SRAM only will be lost. The data in the
internal backup memory will be retained. The
clock is set to 01.01.97, 00:00:00 hrs.
Remedy:
For instruments with storage capacitor: reset the
time.
For instruments with lithium battery: return
instrument to the supplier for a change of battery.
Battery
↓
The lithium battery is discharged.
Remedy:
Return instrument to the supplier for a change of
battery.
H
Data may be lost after disconnecting the instrument from the
supply: after more than > 4 years on instruments with a lithium
battery, and
after approx. > 2 days (ambient temperature 15 — 25°C) with
storage capacitor.