Yokogawa 414 Batch Controller - Manual (Page 47)

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 midway through a batch.
This could be due to the Signal Timeout having timed out.
Check for a fault in the system.
No display.
Check power to the instrument.
All 88888888 displayed.
The Batcher will display all eights on power up for 4 seconds
as a display test. If it continues to display all eights 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 on the rear
of the instrument are set as per section 6.
Trouble Shooting 45