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Flow Cert Second Edition.pdf - Pulsar Process Measurement

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Hardware<br />

P990 Self Test<br />

If you enter 1 for this parameter, then the unit will perform a self-test. This<br />

will confirm that the various parts of the circuitry are working correctly.<br />

You will see confirmation messages that the clock and the EEPROM are<br />

working correctly, and error messages for any parts that fail.<br />

P991 Hard Test<br />

When this parameter is selected, the unit will test the following in turn.<br />

• LED’s. Watch them change colour as shown on the display, and<br />

press, ENTER, if they operated as shown.<br />

• Relays. Press a numeric key corresponding to the number of the<br />

relay you wish to test, and the relay will change state each time the<br />

key is pressed. If you press any other key, other than a valid relay<br />

number, then the test will end.<br />

• Segments. All the segments on the LCD are lit up, so you can see<br />

if they all work. Press, ENTER, to end the test. The LED’s all go<br />

green at the same time.<br />

• Keys. You should press each key, to confirm it works, with a<br />

counter showing how many more keys you have to press. Be sure<br />

to press the CANCEL key last, as this will show if all keys were<br />

pressed or not. If they were not, then an error message is displayed.<br />

P992 mA Out Test<br />

This parameter will allow you to force a specified current on the mA output,<br />

to test the equipment that it is connected to, and to make sure the unit is<br />

working correctly. The figure you enter will be generated by the mA output.<br />

P993 mA In Test<br />

This parameter will allow you to test the mA input, by injecting a known<br />

mA signal from an external source you can check the unit is working<br />

correctly and as expected.<br />

P994 Transducer Test<br />

If you enter 1 for this parameter it will continually fire the transducer, so<br />

you can check the wiring, until you press any key to cancel.<br />

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