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Trouble Shooting45
HP289
8. Trouble Shooting
Batcher does not reset
The Signal Timeout has been set to an excessively long period and
has not timed out at the end of the last batch.
Batch will not start or relay 1 will not close
Ensure that the instrument has not timed out as controlled by the
Signal Timeout and that a Flow Alarm condition does not prevail.
Pressing the Stop switch will cancel this condition. Check for a
fault on the flow input before restarting.
Batcher stops during a batch (prior to batch end)
This could be due to the Signal Timeout having timed out. Check
for a fault in the system. Ensure that the Signal Timeout period is
significantly longer than the period between flowmeter pulses at
the minimum flowrate.
No display
Check for power to the instrument.
All 88888888 displayed
The Batcher displays all eights on power-up for 4 seconds as a
display test. If all eights continue to display after this period, this
is symptomatic of the power supply voltage being low. Check the
power input voltage.
Not counting.
If the Batcher does not count with the flowmeter connected and
flow passing through it, first check the connections and then ensure
the DIP switches on the rear of the instrument are set correctly for
the attached flowmeter.
It is possible to manually test the input circuit of the Batcher by
setting the input configuration for a Reed Switch and pulsing
across the signal (+) and (-) with a wire link. When doing this, the