Trigger Inputs; Analog Outputs - Ahlborn ALMEMO 500 Supplementary Instructions Manual

4 Product

4.3.2 Trigger inputs

The trigger inputs P8 and P9 can be addressed via an optocoupler with a voltage
level of 4 V to 30 V. In case potential-free switching contacts are used, the
optocouplers must be wired-up according to the supply U+ and U- (see image
below). The trigger functions (starting or stopping a measurement) can be edge-
triggered or level-triggered . (see chapter 5.5.3 Set the Trigger Port Assignment).

4.3.3 Analog outputs

Optionally a slide-in module can also be equipped with galvanically isolated analog
outputs that can feature the following signals:
Option
OA 500-R02
The output value normally corresponds to the measured value of a selectable
monitoring station. Alternatively it is possible that the analog value is preset as
control parameter via the interface (see chapter 5.5.4 Set the Analog Output Port
Assignment). The output signal can in any case be programmed as standard
output 0-10 V, 0-20 mA, 4-20 mA from arbitrary measuring range sections (see
chapter 5.5.4 Set the Analog Output Port Assignment).
- 8 –
Output signal
0.000 V to +10.000 V
0.000 mA to20.000 mA
Increase
0.5 mV/digit
1 µA/digit