Bronkhorst®
Instruction Manual ES-FLOW™
9.17.116B
46
Symptom
Possible cause
Action
Outlet pressure too high
Check/decrease outlet pressure
Process outlet blocked
Check process outlet and downstream piping
Measured value or output signal
(much) lower than setpoint
Inlet pressure or differential
pressure too low
·
Increase inlet pressure
·
Use instrument in conditions it was designed
for
Piping or filters blocked or
contaminated
Clean system
Supplied fluid type does not match
configured fluid type
Supply equipment with other fluid or change
fluid type in instrument configuration
Measured value or output signal
indicates a flow, while there is
none
Instrument not mounted
horizontally or ambient conditions
differ significantly from conditions
stated on instrument label
·
Follow mounting instructions
·
Use instrument in conditions it was designed
for
·
Adjust zero point (see
)
System leakage
Check the system for leakage. Follow vendor
instructions when installing third party
components (e.g. adapters, tubing, valves)
Continuous maximum measured
value or output signal
Inlet pressure too high
Check inlet pressure
Sensor failure
Return equipment to factory