PULSAR MEASUREMENT
165
P937 Pump Relay Colour
This parameter selects the colour that a pump relay should be when it is in
its “ON” state. The default is 2 = green, but can be changed to ‘no colour’,
red or yellow.
P938 Control Relay Colour
This parameter selects the colour that a control relay should be when it is in
its “ON” state. The default is 2 = green, but can be changed to ‘no colour’,
red or yellow.
P939 Miscellaneous Relay Colour
This parameter selects the colour that a miscellaneous relay should be
when it is in its “ON” state. The default is 2 = green, but can be changed to
‘no colour’, red or yellow.
All relays that are not programmed will show, ‘no colour’, i.e. they are off.
Watchdog
You can check how many times the unit has been switched on and look at
the date and time of the last ten starts. This can be useful if there have been
power failures or if for any reason the Ultra 3 restarts due to a fault
condition. The Ultra 3 can be backed up from a battery which automatically
cuts in during power failure, battery backed up units will continue
uninterrupted operation and therefore will not register a loss of mains
power. If, however the battery was to fail during a mains power interruption,
a start-up would be recorded once power has been restored.
The following parameters can be accessed by directly entering the
parameter number. To do this, enter the program mode and then type in
the appropriate parameter number.
Important Notice
When a relay has been failed, due to a fail signal having been received on its
associated digital input, the relay LED will flash on and off, between yellow
and red, to indicate that the relay has been failed but not put out of service.
After the maximum attempts P300 have been made to start the device relay
and it is put out of service then the relay LED will remain lit on red until
such time that the input is reset.
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