Ahlborn ALMEMO 2290-2/3, Руководство по эксплуатации

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7. MEASUREMENT
The instruments ALMEMO
®
2290-2 and 2290-3 provide the following options
for the acquisition of measuring data:
1. Continuous measurement of a selectable meas. point, s. 7.1 and man. 6.4.
Output of measuring data to the analogue output, see 8. and manual 5.1.1.
2. Single measuring point scan, see 7.2 and manual 6.5.1.1.
3. Cyclic measuring point scan, see 7.3 and manual 6.5.1.2.
4. Continuous measuring point scan, see 7.3.2 and manual 6.5.1.3.
Total Clearing of all Measured Values
On START of every cyclic measurement all max, min and average values of all
channels are automatically cleared. This function can be switched off if not
desired (see manual 6.10.13.2).
7.1 Continuous Measurement of a Measuring Point
As long as no cycle and no continuous measuring point scan have been
programmed (e.g. after a reinitialisation, see 3.3) only the measured value of a
selected measuring point, which is at first CH1, is continuously acquired with
the specified conversion rate (see 6.5.4). This is the best operating mode for a
registration with the analogue output.
7.1.1 Selecting the Measured Value and Measuring Point
After switch-on the function MEAS. VALUE is automatically set and the
measuring point CH1 of the first sensor is selected, i.e. the measured value M1
is indicated on the display. After activating other functions by operating the
keys
F1 and F2 the measured value which was indicated before can be recalled
by using the key MEAS.VAL.
Within the function MEAS. VALUE, the key
CH
allows to successively select
all measuring points and indicate the actual measured value. If the key
CH
is
pressed and held (approx. 1s) the previous channel is again indicated. By
selecting the measuring channel the input channel is, at the same time, also
selected (see 6.1). If the measuring range changes when switching over, the
abbreviation of the measuring range is indicated first.
Selecting the measured value:
MEAS.VAL.
1: 2 3.4
°C
Increase measuring channel with key:
CH
2: 5 1.8
%H
Decrease measuring channel with key: press and hold (approx. 1s)
1s
CH
28 ALMEMO

2290-2/3
Continuous Measurement of a Measuring Point