Sintrol Snifter mA - OPERATION; Alarm Threshold Factory Settings

Snifter mA+ EX RF User Manual 11
6 OPERATION
The Snifter mA+ EX RF Dust Monitor measures the dust level in a gas flow by using
inductive electrification technology which is based on AC measurement of moving
particles which carry a charge.
There are two alarm signal outputs to indicate two different alarm conditions. In
addition to this, the front cover illumination will blink to inform about the current
alarm condition.
6.1 The alarm threshold factory setting values:
Alert: > 5 times normal dust level (during automatic setup)
Alarm: > 20 times normal dust level (during automatic setup)
4 - 20 mA output: After auto-setup, the dust level is set to 5 % of total scale ie. 4.8 mA
ALARM
SIGNALS
DUST LEVEL
mA LOOP
4 - 20mA
FRONT COVER
ILLUMINATION
OPERATION
S1: LOW
S2: LOW
-
-
OFF
Power OFF,
failure or auto-
setup failed
S1: LOW
S2: HIGH
Dust level < Limit1
4 – 8 mA
ON Normal operation
S1: HIGH
S2: LOW
Limit1 <= Dust level < Limit2
8 – 20 mA
BLINKING
COUNT
IS ONE (B)
Alert
S1: HIGH
S2: HIGH
Dust level >= Limit 2
20 mA
BLINKING
COUNT
IS TWO (C)
Alarm
Table 3 Default operating configuration on factory settings