3
If 5 beeps (DO-Bi-Bi-Bi-DO) are emitted, it means the Heat Sensor is out-of-order.
If 7 beeps (Bi-Bi-Bi-DO-Bi-Bi-Bi) are emitted, it means the CO Sensor is out-of-order.
Supervision
For SDCO-1(H)-F1 models, the SDCO Detector will transmit a supervision signal to report its condition regularly every 30 to 50
minutes.
For SDCO-1(H)-F1-2W models, the SDCO Detector will transmit a supervision signal to report its condition regularly every 90 to
110 minutes.
If the Control Panel has not received the signal from the Smoke Detector for a preset period of time, the Control Panel will
determine the Smoke Detector is out of order.
Serial Connection (serial connected model only)
The Smoke Detector is in serial connection with other Smoke Detector in the alarm system. When a Smoke Detector activates
alarm, the Control Panel will notify other Smoke Detectors to also raise alarm even if they have not detected smoke yet. The
alarm length will be in accordance with the Control Panel’s setting.
You cannot press the function button to silence alarm activated by other Smoke Detectors.
Alarm will be restored only after 3 minutes timeout or until the other Smoke Detector which triggers alarm transmits a restore
signal.
Alarm Silence
When the Smoke Detector is alarming, pressing the Test button will put the Smoke Detector into Alarm Silence mode to silence
the alarm for 9 minutes. The buzzer will only stop sounding after the alarm has been activated for at least 1-minute. If the button is
pressed before alarm time reaches 1 minute, the Smoke Detector will wait until alarm time has reach 1 minute before silencing the
alarm.
During the 9-minute Alarm Silence period, the Red LED will flash once per second. The Smoke Detector will continue to monitor
smoke concentration during the alarm silence period:
1. After the 9-minute Alarm Silence period has expired, if the smoke concentration has dropped below alarm threshold, the
Smoke Detector will emit a 2-tone beep and return to normal operation without sounding alarm.
2. If smoke concentration still exceeds alarm threshold, the Smoke Detector will start alarming again.
3. If smoke concentration continues to rise during Alarm Silence period and exceeds a second alarm threshold, the Smoke
Detector will start alarming again. An alarm activated by exceeding the second alarm threshold could not be silenced by
pressing the test button.
Recalibration
The SDCO will calibrate its smoke detector sensor every time when power is applied to ensure optimal smoke sensitivity. After installation,
the operation condition of the Smoke Detector may vary after some time, which may affect its smoke detection function and requires
recalibration. There are two ways to recalibrate the Smoke Detector: auto calibration and manual calibration.
Auto Calibration:
After power up, the Smoke Detector will perform auto-calibration after 4 hours.
After the first auto-calibration, the Smoke Detector will perform auto calibration every month. During the auto-calibration process, the
Smoke Detector will not emit any sound.
If auto-calibration fails, the Amber LED will flash every second along with continuous beeps and Smoke Detector will transmit a
calibration failure signal.
When Smoke Detector auto calibration fails, the smoke alarm function will still work normally using the threshold value taken from the
last successful calibration.
Manual Calibration:
Manual calibration can be performed any time as desired:
1. Press and hold the Learn/Test button for 10 seconds and release when the Smoke Detector emits 2 beeps.
2. The Smoke Detector will enter calibration process. The LED Indicator will flash every 2 seconds.
3. After the Smoke Detector finishes recalibration, it will emit two quick beeps to indicate. The LED will turn off.
4. If calibration process fails, Smoke Detector will emit alarm sound. Please remove and reinsert battery to restart process again.
Installation
Installation Guideline
It is recommended that the installation site be in the center area of the ceiling.
The ideal mounting height for the SDCO Detector is 2.4 meters to 3 meters. Mounting above 3 meters can affect
detection performance.
Do not locate the detector in the following locations:
The Kitchen – Smoke from cooking might cause an unwanted alarm.
Near a ventilating fan, florescent lamp or air-conditioning equipment – air drafts from them may affect the
sensitivity of the detector.
Near ceiling beams or over a cabinet – stagnant air in these areas may affect the sensitivity of the detector.
In the peak of an “A” frame type of ceiling.
Installation Recommendation
Limitations
Do not install the SDCO Detector exposed to direct sunlight.
Avoid installing the SDCO Detector in areas where devices may cause rapid change of temperature in the detection area, i.e.
air conditioner, heaters, etc.
Avoid large obstacles in the detection area.
Do not point directly at sources of heat e.g. Fires or boilers, and not above radiators.
Mounting the SDCO Detector
Step 1. Place the SDCO Detector at desired mounting location and use the Range Test function to make sure the SDCO Detector can
