Bartec HYGROPHIL H 4230-10 A Series, Руководство по эксплуатации

Страница: 104 / 122

Error and warning messages
98
Operating Instructions HYGROPHIL® H 4230-10 Serie A BA 030520
Message Relay Causes Actions
FLOW MIN !! Error relay Although the proportional valve is
fully open, too little air is being
pumped through the measuring
chamber. Upon start-up:
● Increase admission pressure at
the reducing valve (up to a
maximum of 5 bar)
● Check the negative pressure at
the extraction point; operation is
no longer possible at a vacuum
pressure of < -250 hPa
During measurement operation:
● Check the compressed air supply
● Clean the filter
● Check whether the suction line is
blocked
● Check the measuring chamber
and clean if necessary
● Check all hose connections
● Check the ejector; air must be
free to leave at the ejector outlet
● If there is a discharge duct,
check whether it is clear
OPEN ERROR !! Warning relay proportional valve is fully open
● Check the admission pressure
● Check the pressure at the
extraction point
FLOW TOO HIGH !! Warning relay The air flow rate is currently too
high (

P>550 Pa).
The proportional valve closes.
Wait until the end of the control
process
If the control range is insufficient,
the message FLOW MAX !! is
output
FLOW MAX !! Error relay Although the proportional valve is
fully closed, too much air is being
pumped through the measuring
chamber. Upon start-up:
● Pressure at the extraction point
too high; operation is not
possible without special
measures
● Select a different extraction point,
e.g. change from the pressure
side to the suction side for
blowers
● Take suitable throttling
measures, taking into account
the risk of dirt at the throttling
point
During measurement operation:
● Clean the venturi nozzle
● Check the connecting hoses
● Have the service centre check
the pressure pick-up
CLOSE ERROR !! Warning relay proportional valve is fully closed
● Check the pressure at the
extraction point
TT TOO LOW !! Error relay The gas sampling hose
temperature is temporary too low.
● wait till the regular operating
conditions appear
TT TOO HIGH !! Error relay The gas sampling hose
temperature is temporary too
high.
● wait till the regular operating
conditions appear
OUTRANGE T1 ext !! Warning relay The external measured
temperature T1
external
is lower than
0 °C or higher than 200 °C“.
● Check ambient conditions.
● Check the sensor and its
connection for short circuit or
interruption.