Regin NO2F Instructions

INSTRUCTION
EN
NO2F
i
Read this instruction before installation
and wiring of the product
Nitrogen dioxide (NO ) transmitter
2
NO2F is a detector intended for demand-controlled ventilation in
parking garages and road tunnels etc. The detector measures the
NO concentration using an electrochemical method of measurement
2
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
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
(-)
0...10 V DC
(+)
(-)
4...20 mA
NO2F
) Control and alarm levels
2
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
Full alarm
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.
CONTROLLER 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, info@regin.se
CONTROLLER
(+) 12...28 V DC
(-)
R = Max. 300 Ohm
2 ppm
5 ppm
1