shenzhen infrared thermometer manual

The Shenzhen Infrared Thermometer is a non-contact device designed for quick and accurate temperature measurement. It features a digital LCD display, adjustable emissivity settings, measurement modes for body and surface temperature, data hold function, backlight, auto power-off, and low battery indicator. Powered by AAA batteries. Below are key sections for safety, features, operation, calibration, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First-Time Use 4. Specifications 5. Controls and Functions 6. Measurement Procedure 7. Calibration & Settings 8. Maintenance & Storage 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Infrared sensor, LCD display, Measurement button, Mode button, Emissivity adjustment, Backlight button, Battery compartment.

Feature	Description
Infrared Sensor	For non-contact temperature measurement
LCD Display	Shows temperature readings and icons
Measurement Button	Triggers temperature scan
Mode Button	Switches between Body and Surface modes
Emissivity Adjustment	Adjustable from 0.1 to 1.0 for different surfaces
Backlight Button	Turns display backlight on/off
Data Hold Function	Freezes reading on display
Battery Compartment	Holds 2 x AAA batteries
Auto Power-Off	Conserves battery after 30 seconds of inactivity
Low Battery Indicator	Icon appears when batteries need replacement

Installation & Setup

Unpack and inspect contents. Ensure all parts are present.

Insert batteries: Open battery compartment, insert 2 AAA batteries observing polarity.
Power on: Press and hold the Measurement button for 2 seconds.
Initial display test: All LCD segments should illuminate briefly.
Select mode: Use Mode button to choose Body or Surface measurement.

WARNING! Do not look directly into the infrared sensor. Keep away from children.

First-Time Use

Power on the thermometer; follow these steps for accurate measurement.

Select measurement mode: Press MODE to choose between Body (for forehead) or Surface mode.
Set emissivity: For surface mode, adjust emissivity according to material (default 0.95).
Position thermometer: Hold 1-3 inches from measurement surface.
Take measurement: Press and hold Measurement button; release when beep sounds.
Read result: Temperature displays on LCD with appropriate unit (°C or °F).

CAUTION! Ensure measurement surface is clean and free of obstructions.

Specifications

Measurement Range: Body: 32°C to 43°C (89.6°F to 109.4°F); Surface: 0°C to 100°C (32°F to 212°F).
Accuracy: ±0.2°C (±0.4°F) for body mode; ±1°C (±2°F) for surface mode.
Resolution: 0.1°C (0.1°F).
Response Time: Less than 1 second.
Emissivity: Adjustable 0.1 to 1.0.
Optical Resolution: 12:1 (Distance to Spot ratio).
Display: LCD with backlight.
Power Source: 2 x AAA batteries (included).
Auto Power-Off: 30 seconds.
Operating Temp: 10°C to 40°C (50°F to 104°F).

Controls and Functions

Access functions via front panel buttons. Front Panel: Measurement button, Mode button, Backlight button.

Display Icons: Body mode icon, Surface mode icon, °C/°F unit, Low battery, Backlight on, Data hold.

Settings: Press and hold Mode button for 3 seconds to enter settings menu. Use Measurement button to scroll through options: Unit selection (°C/°F), Emissivity adjustment, Sound on/off, Calibration mode. Press Mode button to select and confirm.

Measurement Procedure

For accurate readings, follow proper measurement technique.

Ensure thermometer and target are at stable temperature (in same environment for 30 minutes).
Select appropriate mode: Body for forehead/temporal artery; Surface for objects.
Hold thermometer perpendicular to measurement surface, 1-3 inches away.
Press and hold Measurement button until beep sounds (approx. 1 second).
Read temperature on display. Use Data Hold button to freeze reading if needed.
For body temperature: Measure forehead, avoid hair, sweat, or makeup.

Tip: Take multiple measurements and use the average for best accuracy.

Calibration & Settings

Calibrate periodically for maintained accuracy.

Enter calibration mode: Press and hold Mode and Measurement buttons together for 5 seconds.
Use known reference: Point at calibrated blackbody source or ice water mixture (0°C/32°F).
Adjust calibration: Use Mode button to increase/decrease reading to match reference.
Save calibration: Press Measurement button to save and exit.
Emissivity settings: For surface mode, set emissivity: 0.95 for human skin, 0.85-0.95 for organic materials, 0.1-0.3 for polished metals.

WARNING! Calibrate only with proper reference sources. Incorrect calibration voids warranty.

Maintenance & Storage

Clean lens with soft, dry cloth. Do not use liquids or abrasive materials.

Remove batteries if not using for extended period.
Store in protective case provided.
Keep in dry environment, avoid extreme temperatures.
Replace batteries when low battery icon appears.

CAUTION! Do not disassemble unit. No user-serviceable parts inside.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. CE certified for medical device standards (if applicable). Manufactured in Shenzhen, China. For support, contact manufacturer at [email protected] or visit www.shenzhentherm.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display	Dead batteries	Replace with fresh AAA batteries.
Inaccurate reading	Wrong mode/emissivity	Select correct mode; adjust emissivity; recalibrate.
Display shows "---"	Out of range	Ensure target is within measurement range.
No response to button	Unit locked/frozen	Remove batteries for 60 seconds, then reinsert.
Erratic readings	Dirty lens	Clean lens with soft, dry cloth.
Backlight not working	Disabled in settings	Check settings menu; enable backlight.

Reset: Remove batteries, wait 5 minutes, reinsert to reset to factory defaults.

Service: [email protected]; www.shenzhentherm.com