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Display
Special operating states and faults
Segment test for display: This is performed automatically
each time the device is switched on.
Supply voltage: (s. 11.1)
Display after segment test
Below 3.6 V:
LOBAT
arrow lights up
Wireless link established:
CONNECT
arrow lights up
Measuring with wireless transmission:
START
arrow lights up
Programming function selected:
FCT
arrow lights up
Checksum error during
device calibration:
Non-connected sensors,
deactivated measuring points:
Measuring range / function not permitted:
Sensor breakage:
Abbreviation
flashes
Measuring range undershot,
CJ or CJ breakage (cold junction)
flashes
Value range overshot (>65000):
flashes
Measuring range overshot:
Maximum value flashes
Measuring range undershot:
Minimum value flashes
10.2 Keypad
To operate the device a keypad with seven keys is provided.
Operation via the keypad is disabled in sleep mode and in some le-
vels of device locking. (see 13.2).
ALMEMO
®
2790
17
CALEr
-----
Err
NiCr
CJ
65OOO