Selecting A Measuring Point; Measured Value Correction And Compensation; Set Measured Value To Zero - Ahlborn ALMEMO 2590-2 Operating Instructions Manual

10.1.1 Selecting a measuring point

By pressing key
points and have the current measured value displayed for each. By pressing
you can move back to the previous channel. When a particular measuring

channel is selected the associated input channel is also selected at the same
time.
To increment the measuring channel press
To decrement the measuring channel press

10.2 Measured value correction and compensation

To achieve maximum measuring accuracy zero-point correction and, partly at
least, gain adjustment can be performed for sensors as early as the
menu. For all sensors with 2 actual values and 2 setpoint values univer-
display
sal two-point adjustment is provided via the function menus
(see 11.3) and
ment
temperature or atmospheric pressure the appropriate compensation parame-
ters are provided as early as the

10.2.1 Set measured value to zero

One very useful function is to zero the measured
value at certain locations or at certain times as a
reference value in order then to observe only the
subsequent deviations. Having selected the
measured value function the softkey
appear. Press this key to save the measured
value displayed as base value (see 12.6) and
reset to zero.
Select measured value function (see 8.4) :
To select the zero-set measured value function press
The measured value will then show :
The base value is then assigned the measured value :
To cancel zero-set, then after pressing :

If the function is locked (see 12.4) the base value is not saved on the
connector but only temporarily to RAM where it is retained until the
device is next switched off. This status is indicated in the display by
the symbol
If you prefer to disable the zero-set function completely, the channel
in question must be locked at level 6.
you can select one after the other all active measuring

(see 11.4). For sensors dependent on ambient
Scaling
Sensor display
; in other cases the symbol º appears.
REL


menu; (see 10.2.4 and 10.2.5).
00:
NiCr Temperatur
will
<ZERO>
ZERO
00:
00: 00.0 °C and the symbol REL
<ZERO>
ALMEMO
Menu Sensor display
.
.
Sensor
Two-point adjust-
23.4
ESC F
23.4 °C
<ZERO>.
base value: 23.4 °C
hold the key down.
® 2590
°C
REL
.
.
23