Digital I/O Test; 4-20 Ma Output Test - Hach ANATEL PAT700 Operator's Manual

PAT700 Total Organic Carbon Analyzer – Diagnostics

Digital I/O test

The digital I/O test icon allows you to test digital I/O communication. See
you perform the digital I/O test, make sure I/O wiring is properly connected.
1)
2)
3)
4)
Start test icon
signal on one of the digital input ports. If the read data matches the sent data, the test passes.
Return icon

4-20 mA output test

The 4-20 mA output test icon allows you to test the 4-20 mA outputs. See
perform the test, you must connect a digital multimeter to the appropriate output to measure
the voltage.
1)
2)
Anatel
Connect the digital inputs to a system that is capable of sending a digital signal
Configure one digital input with a high signal and the other with a low signal.
Connect the digital outputs to a system that is capable of reading digital signals.
Press the start test icon.
Figure 8-6 Digital I/O test dialog box
sends send a digital signal out the specified digital output port and reads the
returns you to the diagnostics dialog box.
Connect a digital multimeter to one of the 4-20 mA outputs.
Press the corresponding output icon to start the test.
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Figure 8-6. Before
Figure 8-7. To
Operator Manual