18
7.6 Mk9 O2 Sensor, Specifications
Power supply: 24V DC
Power consumption: <30 mA
Wiring connections: RJ 45
Digital interface: RS485 serial port MODBUS
Outputs: 2 x transistor output 24V DC, Min 1 mA
Display: Graphical 128x64, backlit
Acoustic signal-strength: 76 dBa (1m) max.
Operating principle: FB-optical
O2 measuring range: 0-25 Vol.%
Accuracy O2: <2% FC
Ambient temperature: -20 to +50°C (-4 to +122°F). Only for indoor use.
LED indications
Green: Operation
Yellow: Fault
Red: Alarm (<19.5% O2)
Sound indications
Beeping: Fault
Continuous: Alarm
Approvals: Tested in accordance with DIN6653-2, applied to
O2 sensors.
Dimensions (LxWxD): 90 x 161 x 38 mm / 3.5” x 6.3” x 1.5”
Ingress protection: IP54
Please observe that since this is a safety product we recommend that a function control
should be carried out at least once a year. For more information see chapter 9.5 “Test the system”
and chapter 4 “Calibration”.
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