1. Introduction
The CEM DT-8806 Digital Thermometer is a non-contact infrared thermometer designed for accurate and hygienic temperature measurement. It is suitable for use with adults, children, and infants, offering both body and surface temperature modes. This manual provides essential information for the safe and effective use of your device.
Key Features:
- No-Contact Measurement: Reduces cross-infection risk.
- Dual Mode: Measures both body and surface temperatures.
- Fast Readings: Provides instant accuracy.
- Fever Alarm: Visual and audible alerts for high temperatures.
- Memory Recall: Stores up to 32 temperature readings.
- Switchable Units: Easily switch between Fahrenheit (°F) and Celsius (°C).
- Large LCD Display: Clear readings day and night.
Figure 1: Overview of CEM DT-8806 Key Features.
2. Product Components
Your CEM DT-8806 Digital Thermometer package includes the following items:
- CEM DT-8806 Digital Thermometer Unit
- User Manual (this document)
- 2 x 1.5V AAA Batteries
- Carrying Case / Gift Box
Figure 2: Package Contents of the CEM DT-8806 Digital Thermometer.
3. Setup
3.1 Battery Installation
- Locate the battery cover at the bottom of the thermometer handle.
- Slide the battery cover downwards to open the compartment.
- Insert two 1.5V AAA batteries, ensuring correct polarity (+ and -).
- Close the battery cover by sliding it upwards until it clicks into place.
Note: If the low battery symbol appears on the display, replace the batteries promptly to ensure accurate readings.
Figure 3: Low Battery Indication on the Thermometer Display.
4. Operating Instructions
4.1 Basic Operation
- Point the thermometer at the center of the forehead from a distance of 1cm to 5cm (0.39in to 2.0in).
- Press the measurement trigger button to take a reading.
- The temperature will be displayed on the LCD screen within 1 second.
Figure 4: Proper Measurement Distance for Non-Contact Forehead Temperature.
4.2 Mode Selection (Body / Surface)
The DT-8806 thermometer supports two measurement modes: Body Mode and Surface Mode. Press the MODE button to switch between these modes.
- Body Mode: Used for measuring human body temperature. The display will show "Body".
- Surface Mode: Used for measuring the surface temperature of objects, such as milk, bathwater, or room temperature. The display will show "Surface Temp".
Figure 5: Body Mode vs. Surface Mode Measurement Examples.
Video 1: Demonstrating the CEM DT-8806's features, including button functions, IR sensor, measurement trigger, and switching between Body and Surface modes for various applications. This video highlights the versatility and ease of use of the thermometer.
4.3 Temperature Unit Switching (°F / °C)
To switch between Fahrenheit (°F) and Celsius (°C), press and hold the MODE button for approximately 3 seconds until the unit changes on the display.
Figure 6: Switching Between Fahrenheit and Celsius Temperature Units.
4.4 Memory Function
The thermometer can store up to 32 sets of temperature readings. To access the memory, press the UP or DOWN buttons when the device is on. This allows you to track historical temperature changes.
Figure 7: Tracking Temperature Changes with the 32-Set Memory Function.
4.5 Fever Alarm
The thermometer features a fever alarm. If the measured body temperature exceeds the preset threshold (default is 38°C or 100.4°F), the display backlight will change color (e.g., to red) and an audible "didi" sound will be emitted to alert you of a potential fever.
4.6 Silent Mode
The thermometer can be switched to silent mode to avoid disturbing sleeping individuals, especially babies. Refer to the device's buttons for the specific sequence to activate/deactivate silent mode (often by pressing and holding the "Up" or "Down" button).
5. Maintenance
5.1 Cleaning
- Use a soft, dry cloth to clean the thermometer body.
- For the infrared sensor lens, gently wipe with a cotton swab lightly moistened with alcohol. Do not use abrasive cleaners or immerse the device in water.
- Ensure the device is completely dry before storage or next use.
5.2 Storage
- Store the thermometer in a cool, dry place, away from direct sunlight and extreme temperatures.
- If the thermometer will not be used for an extended period, remove the batteries to prevent leakage and damage to the device.
6. Troubleshooting
Refer to the table below for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No display / Device won't turn on | Dead or incorrectly installed batteries. | Replace batteries with new 1.5V AAA batteries, ensuring correct polarity. |
| Inaccurate readings | Incorrect measurement distance; dirty sensor lens; ambient temperature fluctuations. | Ensure proper distance (1-5cm). Clean the IR sensor. Allow thermometer to acclimatize to room temperature for 15-20 minutes before use. |
| "Lo" or "Hi" displayed | Temperature is outside the measurable range. | Ensure the thermometer is in the correct mode (Body/Surface) and the temperature is within the specified range. |
| No sound from fever alarm | Silent mode is activated. | Deactivate silent mode (refer to section 4.6). |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | DT-8806S |
| Measurement Range (Body Mode) | 89.6°F to 108.5°F (32.0°C to 42.5°C) |
| Measurement Range (Surface Mode) | 32°F to 140°F (0°C to 60°C) |
| Accuracy | ±0.4°F (±0.2°C) for Body Mode; ±1.8°F (±1.0°C) for Surface Mode |
| Measurement Distance | 1cm ~ 5cm (0.39in ~ 2.0in) |
| Response Time | 1 second |
| Memory Storage | 32 sets of readings |
| Power Supply | DC 3V (2 x AAA batteries) |
| Automatic Shut-off | Approximately 30 seconds |
| Dimensions | 5.55 x 4.21 x 2.05 inches (approximate) |
| Weight | 5.61 ounces (approximate, without batteries) |
| Certifications | CE, FDA, FCC, RoHS |
Figure 8: Approximate Dimensions of the CEM DT-8806 Thermometer.
8. Warranty and Support
For warranty information and technical support, please refer to the contact details provided on the product packaging or visit the official CEM Instrument website. Keep your purchase receipt as proof of purchase for any warranty claims.
CEM is committed to providing reliable products and customer satisfaction. If you encounter any issues not covered in this manual, please contact our customer service team for assistance.
