Bronkhorst PiPS Bedienungsanleitung PDF herunterladen (Seite 8)

English 8/16

Doc nr.: 9.17.055

Troubleshooting

No output signal of instrument

• No power supply

Check power supply

• PCB failure

Check cable

Return to factory

• Valve blocked

Clean valve (qualified personnel only)

• Filter or screen blocked

Clean filter or screen

• Sensor failure

Return instrument to factory

Maximum output signal

• PCB failure

Return instrument to factory

• Sensor failure

Return instrument to factory

High setpoint vs. output offset

• PCB failure

Return instrument to factory

• Valve blocked

Clean valve (qualified personnel only)

• Stoppage

Remove cause

• Pressure not correct

Check pressure

Signal lower than expected

• System stoppage

Remove cause

Flow is gradually decreasing

• (Gas) Condensation

Decrease supply pressure or increase

temperature

• Valve adjustment has changed

Check valve adjustment

• Controller adjustment wrong

Check controller setting

Oscillation

• Input pressure wrong

Adjust pressure

• Valve damaged

Check valve

• Volume / tubing between

controller and pressure

controller too small/ short

Improve situation

• Wrong controller settings

Check controller settings

Small flow occurs when valve is

supposed to be closed

• Valve is leaking

Check valve

Parameter not available

• Parameter is not supported by

the connected instrument.

Setpoint is neglected

• Instrument has wrong controller

mode

Set controller mode to ‘digital input’

• Alarm- or counterlimit reached

Reset alarm

Settings menu not accessible

• Security mode ‘blocked’ or

‘menu’

Change security mode

Before switching on power, check if all connections have been made according to the hook-up diagram. The hook-

up diagrams are available at the download section of our website: http://www.bronkhorst.com

LED indications can be very useful in case of problems with the instrument. See the “MANUAL INTERFACE: micro-

switch and LED’s” section in the manual “Operation instructions digital instruments (document nr. 9.17.023)”. This

manual is available at the download section of our website: http://www.bronkhorst.com

Contact Bronkhorst High-Tech local sales representative or send e-mail describing your problem to:

support@bronkhorst.com

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