are not touched to any connectors to ensure that the detector
head be smoothly fastened to the base.
(2) When using the jump wires to check the connectivity for each
gas detector in the circuit loop (e.g. connecting point 2 and
point 3 with a jump wire as shown in Figure 3), be sure to
remove all the jump wires before attaching the detector head
onto the base.
(3) Be sure that the components used in the circuit loop as shown
in Figure 3 should be coupled up with those components used
in the transceiver circuitry of the control panel.
(4) The base is allowed to be installed within an available wiring
box including octagon box (3”, 3.5”, or 4”), circular box (3”) and
rectangular box (4” long), without using any other additional
mechanical adapters.
INSTALLING THE DETECTOR HEAD
(1)
Align up the position of head to the base, see Figure 3.
(2)
Screw the detector head into the base in clockwise direction.
Figure 3 Alignment of detector head and its base
MAINTENANCE OF CARBON MONOXIDE
DETECTORS
A co detector constantly monitors any carbon monoxide under its
normal operational conditions. The following maintenance
procedures for gas detectors will assure its desired performance:
(1) Use a vacuum cleaner to clean the dust around the vent holes
of gas detector cover.
(2)
Carry out a regular or weekly test of gas detectors.
Figure 4 Front cover of detector head
TYPES FOR DETECTOR SIGNALING
The carbon monoxide detector has to be warmed up for at least 10
minutes after being energized, then the test procedure can be
followed. There are four types of detector signaling:
(1)
During detector warms up, Green LED will flash.
(2)
Green LED light straight indicates the detector in the normal
monitoring condition.
(3) When the carbon monoxide is detected, the light will change
into flashing of red LED light, as accompanying the alarm
sounds.
(4) If the detector is not in normal operation, the buzzer will sound
once every minute to indicate that the malfunction is detected
by the built-in self-monitoring circuitry.
ACTIONS TO TAKE WHEN ALARM SOUNDING
In case of harmful levels of CO gas being detected, your detector will
go into a continuous full alarm. Try to take the following necessary
actions immediately:
(a) If there is anyone experiencing the effects of carbon monoxide
poisoning such as headache, dizziness, nausea or other flu-
like symptoms, call your fire department right away or 911.
You should evacuate all the people in the premises
immediately. Do a head count to check that everybody is
accounted for.
(b) Do not re-enter the premises until the problem has been
corrected and the CO gas has been dispersed out and a safe
level is reached.
(c) If no symptoms exist, Immediately ventilate the home by
opening windows and doors. Turn off fuel burning appliances
and call a qualified technician or your utility company to
inspect and repair your problem before restarting appliances.
WARNING:
Normally an activation of the detector indicates the
presence of CO gas. However, the CO gas can be extremely fatal, if
it is not detected. The source of the CO gas may come from several
possible situations, please refer to the list of sources of carbon
monoxide in page 1.
CAUTION:
This detector will only indicate the presence of CO gas
at the sensor. However, you have to be aware that the CO gas may
be present in other areas in the premises.
ACTIONS TO TAKE AFTER THE PROBLEM BEING
CORRECTED
Once the problem about the CO gas presence in the premises has
been corrected, the alarm of the detector should be off. After waiting
for 10 minutes, push the Test button to test the detector so that you
can make sure that the detector is working properly again
SPECIFICATION:
Gas Monitored
CO
Operating Voltage
12Vdc or24Vdc
Sensitivity
100ppm within 90 minutes
200ppm within 35 minutes
400ppm within 15 minutes
Alarm Sounds
75dB
Operating Temp(
℃
) 0
℃
~40
℃
Power Consumption
3W
Output Voltage
With Relay Output (Dry
connection output)
WARNING AND LIMITATION
Note that NB983CO series CO detector is not supposed to be used
as smoke detector or fire alarm. In addition, this detector should not
be installed in a “danger area” as defined by National Electrical Code.
A CO detector will operate normally under regular power supply,
therefore, it will not perform at any situation when power outage
occurs.
WARRANTY INFORMATION
Under the normal operation conditions, the manufacturer provides
five-year warranty for the sensor head of gas detector and one-year
warranty for other parts for repairing without charge. Part and labor
charge will be required after the warranty is expired.
WIZMART TECHNOLOGY INC.
2F, Building B, #143, Qi-Xin Road, Jiang-Dong Hi-
Tech Park, Ning Bo City 315040, Zhe-Jiang, China
Tel: +86-13957807788; Fax: +86-13957802288
ISSUE NO. NBUM 20070827, REV.B
SENSOR
5
LED
φ
VANT
