Nitrogen Dioxide, NO
Gas Detector - Analogue, Modbus
Technical data:
Sampling method
Diffusion
Sensor type
Electrochemical
Detection range
0 - 20, 0 - 100 ppm
Resolution
0,1 ppm, 1.0 ppm
Response time T90
Appr.
60s, -30 . . . 50o C
40s, -20 . . . 50o C
> 2 years Hur byter man givare?
Sensor lifetime
6 months ??
Maintenance interval
Signal update
Every second
Power supply
11...30Vdc
Power consumption
< 2 VA
Analog outputs
2 × 4-20 mA / 0-10 V, user selectable
Load resistance
RL < (Us - 2 V) / 22 mA for 4-20 mA
RL > 250 kOhm for 0-10 V mode:
Digital interface
RS485, Modbus RTU protocol,
common mode voltage -7 . . . +12V
no galvanic isolation
Enclosure
Grey ABS, wall or duct mount, protection
class IP65
Dimensions
H82 × W80 × D55 mm
CE marking
According to 2014/30/EU and EN61326-1
requirements
Outputs assignment
OUT1 2 gas; OUT2 2 gas
NOTE For LCD version only OUT1 is
available.
db_nitrogen_transmitter_uk.indd
2
Features
- Accurate and stable measurement
- Two analogue outputs
- Modbus RTU interface
- Sensor lifetime more than 2 years
- Humidity compensation (option)
- LCD- display (option)
- Protection class IP65
- Self-diagnostic
Application
This detector is used with its analogue output signal or Modbus.
The RNO2 is designed for gas detection and contact anywhere in the
building network.
Design Features
Gas measuring, monotoring and warning detector based on state-
of-the-art micro technology for continuous monotoring of the
ambient air to detect nitrogen dioxide.
Ordering Codes
RNO2 020
RNO2 100
RNO2 LCD
RNO2 Hum
SW04
Alarm Units
AAW24
AAW230
OA24
OAW24
OAW230
OAW24T
Automatikprodukter
RNO2
Nitrogen dioxide Detector 0 - 20 ppm
Nitrogen dioxide 0 - 100 ppm
Display
Humidity Compensation
Impact Protection
Warning Horn 24Vdc 98dB
Warning Horn 230Vac 98dB
Flashlight 24Vdc, red
Combined Warning Horn/Flashlight, 24Vdc 98 dB
Combined Warning Horn/Flashlight, 230 Vac 98 dB
Combined Warning Horn/Flashlight, with reset
button, 24Vdc 98dB
Nov. 18
1
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