Sensor Stuck; Service Due; Diagnostics; Dashboard - Honeywell Enraf Operation Manual

5-2
Troubleshooting

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.
Down Sensor
Middle Sensor
Up Sensor
Motor Stop Switch
Motor Run
Optical Pulse
Run Permissive
Handheld
Bypass Valve
Draw Valve
Press OK to change values
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".
SVP Controller Operation Manual
Dashboard
High Alarm Output
High Alarm Clear
High
High
Inactive
Inactive
High
(OK/?)
Inactive
Inactive
Stop
Inactive
High
Part No.: 44200004 - Revision 2