Proline Prosonic Flow P 500 HART
Use in protective systems
Hauser
35
Performing the test
For proof testing, use only the
Current output simulation
parameter (→ 31) and the
Value current output
parameter (→ 32), as these are the only parameters approved
for testing the safety-related characteristics.
1. In the
Value current output
parameter (→ 32), select the defined default values one
after the other.
2. Compare current at output 1 with this default value.
Comparing the current values
The current values can be compared using one of the following methods:
• Measure the current of the DUT at the logic subsystem (process control system or safety-
related PLC).
• Measure the current at the DUT using an external, traceably-calibrated ammeter.
‣
Compare the current values.
Connecting the measuring equipment and external testing
• Connecting the measuring equipment in the measuring circuit
• External check of the passive current output
Requirements for the measuring equipment:
• DC current measuring uncertainty ±0.2 %
• DC current resolution10 µA
2
1
A
3
4
A0034446
4
External verification taking the example of a passive current output
1
Automation system with current input (e.. g. PLC)
2
Power supply unit
3
Ammeter
4
Transmitter
1. Connect the ammeter to the transmitter by looping it in series into the circuit.
2. Connect the power supply unit.
