CHENGHEM 2-in-1 Combustible Gas and Carbon Monoxide Detector

1. הקדמה

This manual provides essential information for the proper installation, operation, and maintenance of your CHENGHEM Model KH888 2-in-1 Combustible Gas and Carbon Monoxide Detector. This device is designed to detect both combustible gases (such as natural gas, propane, and methane) and carbon monoxide (CO) to enhance safety in your home or RV. Please read this manual thoroughly before use and retain it for future reference.

2. מידע בטיחות חשוב

אַזהָרָה: This device is a safety alarm and should not be used as a substitute for proper installation, use, and maintenance of fuel-burning appliances, including appropriate ventilation and exhaust systems. This detector is designed to alert you to the presence of combustible gas and carbon monoxide. It is not designed to detect smoke or fire.

• Do not paint the detector. Paint can clog the sensor openings and prevent the unit from functioning properly.
• Do not block the air intake vents on the device.
• Do not install in areas with high humidity, excessive dust, or extreme temperatures.
• Regularly test the detector as instructed in this manual.
• In case of an alarm, follow the emergency procedures outlined in this manual immediately.

3. תכונות מוצר

• טכנולוגיית חיישנים כפולה: Equipped with a catalytic combustion sensor for combustible gas and an electrochemical sensor for carbon monoxide.
• תצוגת LED דיגיטלית: Shows real-time gas concentration levels (PPM for CO, LEL for combustible gas).
• Voice and Light Warning: Provides clear audible (85dB) and visual alerts during an alarm.
• עיצוב פלאגין: Easy installation directly into a standard electrical outlet.
• Test/Reset Button: Allows for manual testing of the alarm and silencing during an event.

תמונה 3.1: חזית view of the CHENGHEM 2-in-1 Gas and Carbon Monoxide Detector.

4. תכולת החבילה

ודא שכל הפריטים נמצאים בחבילה:

• 1 × CHENGHEM 2-in-1 Gas and Carbon Monoxide Detector (Model KH888)
• 1 × מדריך למשתמש
• 1 × Protection Cotton (for sensor protection during shipping)

5. התקנה

5.1 בחירת מיקום

מיקום נכון הוא קריטי לגילוי יעיל. יש לקחת בחשבון את ההנחיות הבאות:

• Carbon Monoxide (CO) Detection: CO is slightly lighter than air and mixes readily with air. Install CO detectors at least 5 feet (1.5 meters) from the floor. For optimal detection, place detectors in or near sleeping areas and living areas.
• Combustible Gas Detection: Natural gas (methane) is lighter than air and rises. Propane (LPG) is heavier than air and sinks. For natural gas, install the detector within 12 inches (30 cm) of the ceiling. For propane, install the detector within 12 inches (30 cm) of the floor. If both types of gas are a concern, consider placing detectors at both high and low levels, or choose a central height.
• General Placement: Avoid placing the detector directly above sinks, near windows or doors, in direct sunlight, or in areas with strong air currents (e.g., near fans, vents). Keep it away from areas where it might be exposed to steam, grease, or chemical fumes.

5.2 Plugging in the Detector

The CHENGHEM KH888 is a plug-in unit. Simply insert the detector into a standard 120V AC electrical outlet. Ensure the outlet is not controlled by a switch that could accidentally turn off power to the detector.

Image 5.1: The detector is designed for direct plug-in installation into a wall outlet.

6. תפעול

6.1 הפעלה ובדיקה עצמית

Upon plugging in the detector, it will initiate a self-test sequence. The LED display will show a countdown or a series of numbers, and the alarm may sound briefly. This indicates the unit is powering on and checking its internal components. Once the self-test is complete, the detector will enter normal monitoring mode.

6.2 Normal Monitoring Mode

In normal operation, the green 'POWER' indicator light will be on. The LED display will typically show '0' or '---' indicating no detectable gas or CO levels. If low levels of gas or CO are detected, the display may show the concentration in PPM (parts per million) for CO or LEL (lower explosive limit) for combustible gas.

Image 6.1: Front panel showing LED display, power, fault, and alarm indicators, and the self-test button. The back shows the plug and air intake.

7. Alarm Indications

The detector provides distinct alarms for different conditions:

• Combustible Gas Alarm: When combustible gas reaches a dangerous level (e.g., 6% LEL), the red 'ALARM' light will flash, the LED display will show the LEL concentration, and a loud audible alarm will sound. The voice prompt may announce "Gas Leak!"
• אזעקת פחמן חד-חמצני (CO): When CO reaches a dangerous level (e.g., 50 PPM for a sustained period), the red 'ALARM' light will flash, the LED display will show the CO concentration in PPM, and a loud audible alarm will sound. The voice prompt may announce "Carbon Monoxide Alarm!"
• אזעקת תקלות: If the detector experiences a malfunction, the yellow 'FAULT' light will illuminate, and the unit may emit a specific fault tone. The LED display might show an error code. Refer to the Troubleshooting section for common fault codes.

7.1 Emergency Procedures (In Case of Alarm)

אם האזעקה נשמעת:

1. לא להיבהל. הישארו רגועים.
2. לפנות מיד. Move everyone, including pets, to fresh air outdoors.
3. Do not re-enter the premises until emergency services (fire department or gas company) have confirmed it is safe.
4. התקשר לשירותי חירום from a safe location.
5. Do not use phones or electrical appliances inside the building if a gas leak is suspected, as this could create a spark.

8. תחזוקה

8.1 בדיקות תקופתיות

Test the detector weekly by pressing and holding the 'SELF-TEST' button until the alarm sounds. This confirms the alarm circuit and horn are functioning. If the alarm does not sound, refer to the Troubleshooting section.

8.2 ניקוי

נקו את החלק החיצוני של הגלאי באופן קבוע בעזרת מטלית רכהamp cloth. Do not use cleaning agents, waxes, or polishes as they can damage the sensor or casing. Do not spray cleaning products directly onto the detector.

8.3 אורך חיים של חיישן

Gas and CO sensors have a limited lifespan. The detector is designed for a typical operational life of several years. Refer to the product label for specific replacement recommendations. Replace the unit after its recommended lifespan or if a permanent fault is indicated.

9. פתרון תקלות

10. מפרטים

• דֶגֶם: KH888
• מקור כוח: Plug-in (120V AC)
• סוג חיישן: Catalytic (Combustible Gas), Electrochemical (Carbon Monoxide)
• עוצמת קול אזעקה: >85dB ב-1 מטר
• לחות הפעלה: ≤95% לחות יחסית (ללא עיבוי)
• מידות המוצר: מידות בערך 2.5 אינץ' עומק x 3 אינץ' רוחב x 4.5 אינץ' גובה
• חוֹמֶר: ABS
• Detection Gases: Natural Gas (Methane), Propane, Carbon Monoxide

11. אחריות ותמיכת לקוחות

For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official CHENGHEM webאתר. שמור את קבלת הרכישה כהוכחת קנייה.