INSTRUCTION
i
Read this instruction before installation
and wiring of the product
NO2F
1
NO2F
Nitrogen dioxide (NO
2
) transmitter
NO2F is a detector intended for demand-controlled ventilation in
parking garages and road tunnels etc. The detector measures the
NO
2
concentration using an electrochemical method of measurement
characterised by high selectivity and accuracy even in low concentra-
tions. The output signal is a linear representation of the gas concen-
tration.
Technical data
Supply voltage
12...28 V DC
Power consumption
20 mAh
Method of measurement
Electrochemical
Outputs
4...20 mA, two-wire
0...10 V DC, three-wire
Calibration
Automatic zero adjustment
Ambient temperature
-10...+40°C
Ambient humidity
0...90 % RH
Protection class
IP56
Dimensions (WxHxD)
80 x 82 x 86 mm
Weight
0.190 kg
Material, casing
Polycarbonate
Type of gas
Nitrogen dioxide (NO
2
)
Measuring range
0...20 ppm
Accuracy
±3 %
Lifetime sensor
~ 2 years
Installation
NO2F is recommended to be mounted about 20-30 cm above the floor.
One detector is to be placed per 200-500 square metres garage surface,
provided that the surface is open (without any ”pockets”) and that there
is continuous air flow. Install the detector at least 50 cm from ventilation
ducts and room corners. The transmitter must be mounted with the cable
connection pointing up.
Wiring
The output signal is set via a jumper according to the figures below.
(+) 12...28 V DC
0...10 V DC
!
(+)
(-)
(+)
(-)
CONTROLLER
0...10 V DC
(+)
(-)
(+) 12...28 V DC
(-)
R = Max. 300 Ohm
CONTROLLER
4...20 mA
Control and alarm levels
We recommend using two alarm levels, pre-alarm and full alarm. In
case of a pre-alarm, the fans are to be set to full speed and strategi-
cally placed flashing lights are to be activated. In case of a full alarm,
strategically placed sirens are to be started, advising people to leave
the garage immediately. Recommended levels for these alarms:
Pre-alarm
2 ppm
Full alarm
5 ppm
Service life and length of warranty
Regin recommends that the product be replaced by a new unit every
two years (24 months) due to the service life of the measuring ele-
ment. Therefore, the length of warranty for this particular product is
12 months. Because of the calibration required, the measuring ele-
ment is non-replaceable.
This product carries the CE mark. For more information, see
www.regincontrols.com.
This product is TÜV-approved in accordance with VDI 2053.
Contact
AB Regin, Box 116, SE-428 22 Kållered, Sweden
Tel: +46 31 720 02 00, Fax: +46 31 720 02 50
www.regincontrols.com, [email protected]
8259F
DEC 18
EN
