Troubleshooting
5-2 SVP Controller Operation Manual Part No.: 44200004 - Revision 2
5.2.3 Sensor stuck
This error message means that one of the sensors is triggered and is
sending the signal to controller at the beginning of the proving run. To clear
the error check if:
the optical switches are functioning (using the dashboard function –
see 5.3.1),
ensuring that the flag is not triggering one of the optical switches
(if repositioning is required user can use dashboard function – “Motor
run command” to relocate the piston assembly),
motor stop switch is functioning (using the dashboard function –
see 5.3.1),
5.2.4 Service due
The prover is due for service as determined by the entry at Main Menu/
Configuration/Alarms/Service Due Reminder.
5.3 Diagnostics
There are several screens inside the Main Menu/Diagnostics menu to aid
in troubleshooting.
5.3.1 Dashboard
The dashboard screen allows you to verify the status of the inputs and
outputs of the SVP Controller. Each output function can be tested by
selecting it and activating it.
Dashboard
Down Sensor High Alarm Output Inactive
Middle Sensor High Alarm Clear High
Up Sensor High
Motor Stop Switch High
Motor Run Inactive
Optical Pulse Inactive
Run Permissive High
Handheld (OK/?)
Bypass Valve Inactive
Draw Valve Inactive
Press OK to change values Stop
A properly functioning optical switch will normally indicate “High” at the
dashboard screen. Inserting an opaque flag into the optical switch will
cause the state to change to “Low”.
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