This procedure outlines how to perform an electrical operational test
before carrying out full mechanical commissioning, making sure that the
loading post is functioning correctly. Check for any damage that may
have occurred in transit. Check all terminals, plugs, and chips to make
sure that they are securely in place.
Damage to electronics occurs most commonly from
vibration and jarring.
Before beginning this test, check that no gas pressure has been applied
to the loading post inlets. The factory set-up information should be
programmed into the loading post but all K-factor and Parameter switch
settings should be checked and confirmed before commissioning tests
are carried out.
1. Make sure that the inlet shut-off valves are closed (these are the
valves in the inlet lines at the base of the loading post, but they are
not part of the loading post).
2. Turn on the power supply to the loading post.
The displays and backlighting will illuminate, and the displays read
PA:uS:E, then count down for one minute.
The loading post is in a ready state once the countdown is finished
and the display shows 0.00.
3. With the loading post in a ready state, check that the C4000
Microprocessor Power LED (D1) is turned on
4. Press the Start button.
The display will show 888888 and the solenoids energise, initiating
a fill. Check that Diodes D8, D10 and D11 turn on, indicating a
signal is being sent to the triacs to open the solenoid valves.
The diagnostic LED (D18) flashes quickly when the start button is
pushed to initiate a fill.
5. Verify solenoid operation by listening for a click, or by using a
screwdriver tip or some other metallic tool to check for a magnetic
field present on the solenoid coils.
The solenoids will switch off after one minute. This is a default time-
out setting in the software for situations when there is no gas flow
registered.
6. Press the Stop button. The solenoids switch off and the fill ends.
When you release the Stop button, the loading post resets and
returns to a ready state.
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