Snifter mA+ EX RF User Manual 15
1.2 or initiating auto-setup remotely using remote communication options.
Auto-setup procedure takes 10 times the signal averaging time ie. with the default
parameters, this will be 1000 seconds (approx. 17 min) to complete. When the
front cover lighting stops blinking, the auto-setup is finished and the Snifter mA+
EX RF is ready for use.
9 MAINTENANCE
Snifter mA+ EX RF dust monitor needs very little or practically no maintenance. We
recommend checking the status of the sensor after the first 2 months of operation.
If no notable build-up of contamination can be observed, the recommended
maintenance interval is 2 years.
However, if the particles in the gas are sticky and tend to build up, the cleaning
needs to be done more often. The need for maintenance depends on the process.
The maintenance is done by removing the unit from the process and cleaning the
sensor rod to prevent signal leakage to ground. Opening the enclosure during the
maintenance is unnecessary and will terminate the warranty.
10 TROUBLESHOOTING
10.1 No output signal
· Check the power and signal wiring are connected correctly.
· Check that there is power on (cover glows).
· Do the auto-setup
If the monitor is not giving any output signal after these checks, contact your local
distributor.
10.2 No response after auto-setup
· Check that there is normal process going on during auto-setup.
· Check that the power and signal wiring are connected correctly.
· Check that the signal is not leaking to ground.
o There is NO contact between metal sensor probe and duct wall.
o Ensure that the gas is not condensing (causes signal leakage).
o Check that the sticky dust does not build up on the base of the sensor
and no bridging between sensor probe and duct wall.
NOTE
Front cover illumination sequence F is on (10 Hz rate), when signal leaking to the
ground is permanent.
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