Fault removal
112 Edition 01/2016 multi EA 4000
multiWin: flow error
measuring gas flow ACTUAL = 0
− no intake flow
− pump not switched on
− check temperature difference
− Wait for the temperature difference between
target and actual temperature to approxi-
mate 50 K. If the pump does not switch on
with a temperature difference between target
and actual temperature of less than 50 K, in-
form Service.
Analog values of NDIR optics fluctuate
− leaks
− configuration or fault of the NDIR
detector
− detector stabilization during warm-
up phase of the analyzer not yet
complete
− wait for warm-up phase of 15 min.
− If the analog values are not constant after 1
h (whilst oxygen is present), a leak may be
present. inform Service
− Replace halide trap, if discolored, to protect-
ed the detector.
multiWin: Optical error, analog value out of range
Values of the NDIR detector are shown in yellow in the status window
− The ADU values of the NDIR detec-
tor differ from the target value and
are outside of the tolerance ranges
Note: Measurements are still possible.
− check the oxygen supply of the gas supply
− check the oxygen supply at the flow meter,
open the valve
− check the oxygen flow through the detector
(hose obstruction)
− inform Service
multiWin: no connection to the optics (NDIR)
multiWin: Optics status error
− communication error
− NDIR detector faulty
− reinitialize the device.
− inform Service
Control indicator light is not illuminated
− internal program has not been
started
− Restart the internal computer with the mains
switch of the module.
The ADU values of the NDIR detector drop slowly due to normal ageing. If the values drop
within a few analyses, this indicates damage to the detector by components of the analysis
gas!
To Next Page
