Ahlborn ALMEMO 2390-5 Instrukcje Operacyjne Pobierz pdf (Strona 18)

Special operating states

Segment test for display This is performed automatically

each time the device

is switched ON.

Voltage supply: below 7 volts: -Symbol lights up

BAT

below 6 volts:

1:L o b A t

Sensor supply power shorter than UMIN:

1:U - Lo

Checksum error during

device calibration:

Non-connected sensors,

deactivated measuring points,

deleted programming values,:

Non-permitted measuring range:

Sensor correction or scaling CORR arrow lights up

Calibration resistance switched on CORR arrow flashes

Measuring operation started START arrow lights up

Averaging in progresst arrow lights up

Measured value recording in progress MEM arrow lights up

Measuring point scan with output COM larrow lights up

Function selected F arrow lights up

If all functions are activated,

then F arrow flashes

Malfunctions

Malfunctions are displayed as follows and trigger an alarm; (see Manual 6.3.9):

Sensor breakage: Abbreviation flashes

1: N i C r °C

Limit value exceeded: ALARM arrow lights up

Measuring range overshot: Maximum value flashes

Measuring range undershot: Maximum value flashes

Measuring range undershot for (Cold junction)

cold junction compensation, flashes

or measuring without external

cold junction compensation,

or cold junction compensation breakage

Values range overshot (>65000): flashes

1:6 5 0 0 0

C A L E r r

1: - - - - X X

1: E r r

1: C J

18 ALMEMO



2390-5

Display and keypad

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 59 60

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Ahlborn ALMEMO 2390-5 Instrukcje Operacyjne Strona 18

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