Ahlborn ALMEMO 2390-5 Instructions d'exploitation télécharger pdf (Page 48)

The measured value is then no longer displayed, scanned, and output but the

programming is retained intact.

Reactivating the measuring channel:

Function: RANGE ´R´ keys : ,

PROG



If the channel was previously deactivated, then it is now reactivated with all pro-

gramming values intact. However, if the channel is already active, then with

this key combination all its programming values are deleted (i.e. as per se-

lecting the measuring range).

7.7.1 Special meas. ranges, linearization,

multi-point calibration

Thanks to the new ALMEMO special connectors with extra memory for additio-

nal data (larger EEPROM, code E4) the following tasks can now for the first ti-

me be elegantly performed :

1. Provision of special measuring ranges with internal characteristic (s. 10.3.9)

2. Linearization of signals for voltage, current, resistance, or frequency set by

the user

3. Multi-point calibration of all sensors

The ALMEMO 2890-9 can as standard evaluate all appropriately programmed

connectors. With the special KL variant it is also possible to convert measuring

signals into appropriate display values in line with a characteristic of up t 35

support values. These support points are programmed to the EEPROM in the

ALMEMO connector using the AMR-Control software. During a measuring ope-

ration the measured values are interpolated between these on a linear basis.

When correcting non-linear sensors (e.g. with Pt100 or thermocouple sensors)

initially the original characteristics are considered; then only the deviations are

interpolated on a linear basis and inserted.

If a channel with a characteristic is deactivated or programmed with a different

range, the characteristic is subsequently reactivated by programming the spe-

cial range ´Lin ´ by means of the keyboard or command “B99”.

48 ALMEMO

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2390-5

Analog output

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Ahlborn ALMEMO 2390-5 Instructions d'exploitation Page 48