6. MEASURING OPERATIONS
Measuring instrument ALMEMO 2390-5 provides the following options for mea-
sured data acquisition :
1. Semi-continuous measuring point scanning of all active measuring points
(see Section 6.1)
Representation of a selectable measuring point in the display
Measured value output to an analog output
(see Chapter 8)
.
2. Once-only measuring point scan and output
(s. Sec. 6.3.1; Man., Sec. 6.5.1.1)
3. Cyclic measuring point scan and output;
(see Sec. 6.3.2; Manual, Sec. 6.5.1.2)
4. Continuous measuring point scan and output
(see Manual, Section 6.5.1.3)
.
Completely delete all measured values
With each new START of a measuring operation all maximum, minimum, and
average values for all channels are deleted automatically.
6.1 Measuring point scanning and meas. point display
The ALMEMO 2390-5, unlike previous instruments, is set by default to semi-
continuous measuring point scanning; i.e. all measuring points are continuously
scanned and the measured values thus acquired can be called up at any time,
even if they depend on other channels (e.g. function channels and compensati-
on processes). However, the measuring point selected is scanned additionally
every second time so that it is always up-to-date even in cases involving analog
output or smoothing, etc..
6.1.1 Selecting the measured value and the measuring point
After the device is switched on, the MEASURED VALUE function is set automa-
tically and the measured value of the selected measuring point is displayed to-
gether with the appropriate units. After activating other functions by pressing
the
FUNCTION
key, you can return to the measured value display by pressing the
M
▲
key. In the MEASURED VALUE function it is also possible, by pressing
M
▲
key, to successively select all other active measuring points and have the cur-
rent measured value of each one displayed. If key
M
▲
is pressed and held
down (for approx. 1 second), the previous channel is displayed again. When a
measuring channel is selected the associated input channel is also selected at
the same time . If, when switching channels, the measuring range changes, the
abbreviation for the measuring range is displayed for a moment first; (see table
in Section 7.7).
Select the
MEASURED VALUE
function:
M
▲
0: 2 3.4 5
°C
Increment the meas. channel by key:
M
▲
1: 5 1.8
%H
Decrement the meas. channel by key:
and holding down (appr. 1s)
M
▲
1s
ALMEMO
2390-5
23
Measuring operations
