Nov. 18
Automatikprodukter
Nitrogen Dioxide, NO
2
Gas Detector - Analogue, Modbus
2
db_nitrogen_transmitter_uk.indd
RNO2
Self diagnostic
Full functionality check at startup
Warm-up time
≤ 1 min
Cable length
remote probe
Shielded cable, 2.5 or 5m
Cable connection
Screwless spring loaded terminals
Operating conditions
-30...+50 °C; 15 - 90 %rH,
atmospheric pressure ±10%;
explosion safe (non ATEX rated) spaces
Normal ambient oxygen level
Avoid strong mechanical shock, vibrations
or EMI
Avoid exposure to corrosive gases or
volatile silicon containing compounds
NOTE: the sensor may exhibit sensitivity
to chlorine.
Operating environ
-
ment
Industrial indoor and outdoor areas
without aggressive gases or volatile silicon
containing materials.
LCD option
Operating
temperature
0...+50 °C
Display dimensions
72 × 36 mm
Number of digits
3.5 7-segment
Character height
14 mm
Other features
Backlight
Maximum overload
100 ppm
200 ppm
Warranty
This product is warranted to be free from
defects in material and workmanship for a
period of one year from the date of
original sale.
During this warranty period
Manufacturer will, at its option, either
repair or replace product that proves to
be defective.
This warranty is void if the product has
been operated in conditions outside
ranges specified by Manufacturer or dam
-
aged by customer error or
negligence or if there has been an
unauthorised modification.
The RNO2 transmitters belong to the multifunctional
measurement instruments.
The instruments utilise gas sensors with excellent repeatability,
stability and long lifetime.
The devices are supplied either in duct-mount or wall-mount version.
The wall mount version of the device is available with remote probe.
The remote probe is connected to the main unit with shielded cable.
Default connection cable length is 3 m.
The RNO2 series provides two independent analog outputs OUT1
and OUT2, user
selectable to 4-20 mA or 0-10 V, proportional either
to gas concentration or temperature.
RS485 Modbus RTU digital communication interface allows easy
instrument configuration and integration into various automation
systems.
A design with LCD is available as an option.
Safety requirements
Always adhere to the safety provisions applicable in the country of
use.
Do not perform any maintenance operation with the power on.
Do not let water or foreign objects inside the device.
Operating conditions
The device should be used in explosion-safe (non ATEX -rated) indoor
areas, without aggressive gases in the atmosphere.
See Specification table for more details.
Installation and connections
There are no precise rules or standards to follow when installing the
gas detectors. The following points must be taken into account:
-
application (air quality control or leakage detection)
-
properties of the space under investigation (room geometry,
direction and velocity of air flows etc)
-
detected gas (relative density to air, whether the gas is flamma
-
ble, or toxiс, or oxygen displacing)
-
safety: strong vibrations, mechanical shock, and the sources of
strong electromagnetic interference should be avoided
-
the device should be accessible for maintenance and repair.
For early leakage detection install the sensor as close as possible to
the potential leakage sources (flanges, valves, pressure reducers,
pumps, etc), taking into consideration other points listed above.
For general area monitoring without definite leakage sources, the
detectors should be distributed evenly in the room.
For personal safety control the detectors are installed in the breath
-
ing zone (at the height of the head of people or animals).
Recommended sensor position is vertical, pointing downwards.
