Ahlborn ALMEMO 6290-7B, Operating Instructions Manual, Page: 18 / 53

5. DISPLAY AND KEYBOARD
5.1 Display
The display of the measuring device ALMEMO
®
6290-7B consists of an LCD
module with six and a half 7-segment digits, two 16-segment digits, and a
battery symbol and seven arrows for indicating the operating status.
CORR START GRAPH LIST RS232 ALARM F
Special Operating Conditions
Segment test of the display automatically after switch-on.
Batt. almost discharged, no print operation:
symbol illuminated BAT
Batt. discharged, device switches off:
1:L o b A t
Sensors that are not connected,
deactivated measuring points,
cleared programming values.
Sensor correction or scaling
arrow
CORR
illuminated
Measurement in progress arrow
START
illuminated
Output as graphic plot arrow
GRAPH
illuminated
Output as list print arrow
LIST
illuminated
Output to RS232 interface arrow
RS232
illuminated
Function selected arrow
F
illuminated
Memory function selected (option S) arrow
F
flashes
Alarm Conditions
are displayed as follows and cause an alarm (see manual 6.3.9):
Sensor breakage: abbr. flashes
1: N i C r
°C
Overshooting of measuring range: maximum value flashes
Undershooting of measuring range: minimum value flashes
Exceeding of limit value: arrow
ALARM
illuminated
Undershoot. of meas. range CJ compens. (cold junction)
or meas. without ext. CJC or CJC break.
flashes
Exceeding of range of values (>65000): flashes
1:6 5 0 0 0
5.2 Selecting and Activating Functions
2 3
BAT
1: - - - -
1: C J
17 ALMEMO

6290-7B
Display and Keyboard