Ahlborn ALMEMO 2290-4 V5 - Analogue Output; Scaling

The following key functions are available during the output:
START/
STOP Stop of the automatic memory output
M/
HOLD Output of individual measured values
START/
STOP Start of the automatic memory output
M▲ / CLEAR Cancelling the automatic memory output
Clear Memory
After pressing the key PROGR the message ´SClr´ will flash in the display. Only
if the key Clr is then pressed the memory will be deleted, otherwise not.
Memory can be cleared using the keys: ,
1s
PROGR
CLEAR
`S C L r´MF
8. ANALOGUE OUTPUT
For analogue acquisition of the selected measuring point either an analogue
output cable ZA 1601-RK (see manual 5.1.1) without electrical isolation or a
relay trigger analogue adapter ZA 8000-RTA (see manual 5.1.3) with electrically
isolated analogue output can be connected to the sockets A1 or A2.
8.1 Scaling
It is possible to spread any partial range to the standard output signal of the
three available options 0-2V, 0-10V, 0/4-20mA if the partial range covers at
least 100 digits (e.g. 0-20mA for -10.0 to +50.0°C). To achieve this the
analogue output-start and the analogue output-end of the desired
measuring range must be entered within the functions AS and AE (see manual
6.10.7). If the initial value is zero it will remain cleared. For activating the
functions ´AA´ and ´AE´, see 5.2.
Function Analogue Output-Start ´AS´
Selection with key F2... Input see 5.4
Function Analogue Output-End ´AE´
Selection with key F2... Input see 5.4
Example: meas. range -10.0 to 50.0 °C
These two parameters, analogue output-start and analogue output-end, are
also stored in the EEPROM of the sensor and can, therefore, be individually
programmed for each channel, i.e. during a manual switch through the
channels an individual scaling is available for each measuring variable.
If the measuring points are continuously scanned it is even possible to connect
two analogue outputs at the same time. At the output of A2 the measured value
of the selected channel is present and at the output of A1 the measured value
of the first channel of the selected sensor is present (see also man. 6.10.7).
1: - 1 0.0 A S
1: 0 5 0.0 A E
ALMEMO
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2290-4 41
Analogue Output