Bronkhorst®
Instruction Manual EL-FLOW® Select
9.17.099J
48
5
Troubleshooting and service
·
Electronic problems can be traced by restarting the equipment.
·
If the equipment starts up normally, the measurement and control behavior can be checked by applying fluid pressure.
·
To track down problems in the fluid system, depressurize the fluid system and disconnect the suspected unit from the
process line. Dirt or clogging might be quickly detected by visual inspection of disassembled fluid connections.
If you suspect leakage, do not disassemble the device for inspection, but contact your Bronkhorst representative for service
or repairs.
5.1
Errors and warnings
·
During operation, the LEDs can indicate errors and/or warnings. See
indications the instrument can give.
·
Error and warning information can also be found by connecting the instrument to FlowDDE and FlowPlot. FlowDDE
puts all errors and warnings on the console screen; FlowPlot provides several specific alarm and counter indicators. See
5.2
Restoring factory settings
In case changes to the instrument configuration leads to non-recoverable erroneous behavior, the instrument can be reset
to the pre-configured factory settings. The easiest way to do this is with the multifunctional switch on top of the
instrument.
To restore the factory settings using the multifunctional switch, follow these instructions:
1. Make sure electrical power to the instrument is switched off.
2. Press and hold the multifunctional switch, while powering up the instrument. After 4 seconds ,the red LED
l
starts
flashing (0.2 seconds on, 0.2 seconds off).
3. At that moment (which is after 4 to 8 seconds), release the switch.
Changes made to the network settings (bus address, baud rate, parity) will
not
be restored by a factory reset.
Alternatively, factory settings can be restored in FlowPlot (via RS232 communication), or with a Bronkhorst® readout and
control unit (BRIGHT, E-8000).
If RS232 communication with the instrument can not be established, use the power-up functionality of the
to switch to configuration mode and enable RS232 communication.
After restoring the factory settings, remember to leave configuration mode and restore the original communication
settings (otherwise, configuration mode remains enabled after power down).
