Download Print this page

AP RNO2 Manual

Nitrogen dioxide, no2 gas detector - analogue, modbus

Advertisement

Quick Links

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

Advertisement

loading
Need help?

Need help?

Do you have a question about the RNO2 and is the answer not in the manual?

Questions and answers

Summary of Contents for AP RNO2

  • Page 1 This detector is used with its analogue output signal or Modbus. Sampling method Diffusion Sensor type Electrochemical The RNO2 is designed for gas detection and contact anywhere in the Detection range 0 - 20, 0 - 100 ppm building network. Resolution 0,1 ppm, 1.0 ppm...
  • Page 2 Cable connection Screwless spring loaded terminals Default connection cable length is 3 m. The RNO2 series provides two independent analog outputs OUT1 Operating conditions -30...+50 °C; 15 - 90 %rH, and OUT2, user selectable to 4-20 mA or 0-10 V, proportional either atmospheric pressure ±10%;...
  • Page 3 Nitrogen Dioxide, NO RNO2 Gas Detector - Analogue, Modbus Nov. 18 See Installation guidelines section for more information. Step 2: Unscrew four lid screws and detach the lid from the transmitter. Step 1: Wall mount version: Fix the device on a wall by screws, using cross-shaped mounting lugs Use two M16 cable glands to pass the cables of the power supply supplied with the instrument (see dimensional drawing below).
  • Page 4 - Modbus controlled forced state option for analog outputs. The device is ready to use. It is recommended to keep the device on constantly, except for RNO2 can be configured through its RS485 interface by Modbus periods of maintenance and calibration, deplacement etc. RTU commands.
  • Page 5 Therefore the sensor should be located at 0.2 m Protocol: Modbus RTU above the floor in order to detect potentially dangerous concentrations more quickly. Calibration RNO2 transmitters have been calibrated by manufacturer with Communication parameters standard gas mixtures before delivery. Parameter Permitted values...
  • Page 6 Gas Detector - Analogue, Modbus Nov. 18 Annex 1. RNO2 series Modbus holding registers (part 2) Register addresses are shown 0-based, Addr in hexadecimal, Reg in decimal format. Modbus holding register numbers MHR are shown in decimal 1-based format, and may be addressed either from 00001 or 40001 base.