Ynlieding
This manual provides detailed instructions for the safe and effective operation of your BTMETER BT-1800 High Temperature Infrared Thermometer. Please read this manual thoroughly before use and retain it for future reference.
The BT-1800 is a non-contact infrared thermometer designed for measuring extremely high temperatures in industrial applications such as metal melting furnaces, forges, kilns, and ceramic firing. It features a wide temperature range, high distance-to-spot ratio, and adjustable emissivity for accurate measurements.
Safety Information
- Laser feiligens: This device uses a Class 2 laser product (Wavelength 630-670 nm, Output <0.5mW). Do not stare directly into the laser beam. Avoid directing the laser beam at eyes or reflective surfaces.
- Bedoeld gebrûk: This thermometer is designed for measuring the temperature of inanimate objects only. It is not accurate for measuring human or animal body temperature and should not be used for medical purposes.
- Behanneling: Behannelje it apparaat foarsichtich. Foarkom dat it falt of oan sterke stoten bleatsteld wurdt.
- Miljeu: Stel it apparaat net bleat oan ekstreme temperatueren, fochtigens of korrosive omjouwings.
- Reiniging: Ferwize nei de Ûnderhâld seksje foar goede cleaning ynstruksjes.
Produkt oerview
The BTMETER BT-1800 is a handheld infrared thermometer featuring a robust design and advanced measurement capabilities. Key components are illustrated below:

- LCD skerm: Displays temperature readings, mode indicators, and settings.
- MODE knop: Used to cycle through measurement modes (MAX/AVG/MIN/DIF/LAL/HAL), select emissivity, and set high/low temperature alarms.
- Laser Pointer Button: Toggles the laser pointer on/off.
- Trigger: Activates measurement and laser.
- Backlit Screen/Flashlight Button: Toggles screen backlight and the integrated flashlight.
- °C/DN Button: Changes temperature unit to Celsius and navigates down in menus.
- °F/UP Button: Changes temperature unit to Fahrenheit and navigates up in menus.
- Batterij doar: Provides access for battery installation.

The device also features a metal screw hole for tripod mounting and a D-shape buckle for attachment to belt loops, enhancing portability and stability during use.

Opsette
Batterij Ynstallaasje
The BT-1800 requires a 9V battery for operation. Follow these steps to install or replace the battery:
- Sykje it batterijfak op 'e hânfet fan' e termometer.
- Iepenje de batterij doar.
- Connect the 9V battery to the battery connector, ensuring correct polarity.
- Place the battery into the compartment and close the battery door securely.
Attaching the Carabiner
For convenient carrying, you can attach the provided carabiner to the base of the thermometer:
- Locate the small screw at the bottom of the handle.
- Use a small screwdriver to remove this screw.
- Insert the carabiner's loop into the hole and secure it by re-inserting and tightening the screw.
Operating Instructions
Basic Temperature Measurement
- Rjochtsje de termometer op it doelobjekt.
- Druk en hâld de Trigger to begin measurement. The laser pointer will activate to indicate the measurement area.
- The temperature reading will be displayed on the LCD screen. Release the trigger to hold the reading.


Ienheidskonverzje (°F/°C)
Om te wikseljen tusken Celsius (°C) en Fahrenheit (°F), druk op de °C/DN or °F/UP button while the device is on.
Mode Selection and Emissivity Adjustment
Druk op de WIZE button to cycle through various functions:
- MAX: Toant de maksimale temperatuer dy't tidens in scan is registrearre.
- MIN: Toant de minimale temperatuer dy't tidens in scan is registrearre.
- AVG: Toant de gemiddelde temperatuer dy't opnommen is tidens in scan.
- DIF: Displays the difference between the maximum and minimum temperatures.
- LAL (Low Alarm): Set a low temperature alarm. The device will flash if the measured temperature falls below this value.
- HAL (High Alarm): Set a high temperature alarm. The device will flash if the measured temperature exceeds this value.
- Emissivity (E): Adjust the emissivity setting (0.1 to 1.0) to match the surface being measured for improved accuracy. Consult a reference table for common material emissivities.
To adjust values (e.g., alarm thresholds or emissivity), use the °F/UP en °C/DN buttons after selecting the desired mode with the WIZE knop.
Laser Pointer and Flashlight
- Druk op de Laser Pointer Button to turn the laser on or off. The BT-1800 features dual laser pointers for precise targeting.
- Druk op de Backlit Screen/Flashlight Button to activate the screen backlight or the integrated flashlight for use in dark environments.

Ofstân nei puntferhâlding (D:S)
The BT-1800 has a Distance to Spot (D:S) ratio of 50:1. This means that at a distance of 50 units from the target, the measurement spot diameter will be 1 unit. A higher D:S ratio allows for accurate temperature measurement from a greater distance, which is crucial for high-temperature applications.

Auto Power Off
The device features an automatic power-off function to conserve battery life. It will power off after a period of inactivity.
Ûnderhâld
- Reiniging: Om skjin it apparaat, wipe it mei in sêft, damp cloth. Do not use abrasive cleaners or solvents. Ensure the lens is clean for accurate readings.
- Batterij ferfanging: Replace the 9V battery when the low power indicator appears on the display. Refer to the "Battery Installation" section for instructions.
- Opslach: Bewarje de thermometer yn in koel, droech plak as net yn gebrûk.
Troubleshooting
| Probleem | Mooglike oarsaak | Oplossing |
|---|---|---|
| Unjildich temperatuerlêzingen |
|
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| Apparaat giet net oan |
|
|
| Screen Not Displaying Correctly / Blank Screen |
|
|
Spesifikaasjes
| Eigenskip | Detail |
|---|---|
| Merk | BTMETER |
| Model Namme | BT-1800 |
| Special Feature | Net-kontakt |
| Kleur | BT-1800 Blue (-58°F ~3272°F) |
| Ynbegrepen komponinten | Yndustriële termometer |
| Outer Materiaal | Plestik |
| Spesifikaasje Met | CE, FCC |
| Display Type | Digitaal |
| Konnektivität Technology | Ynfraread |
| Produkt Care Ynstruksjes | Wiskje skjin |
| Power Boarne | Batterij oandreaun (9V) |
| Temperatuerberik | -58 ° F ~ 3272 ° F (-50 ° C ~ 1800 ° C) |
| Krektens |
|
| Response Tiid | 0.25 sekonden |
| Repeatabiliteit | 1% fan lêzen of 1 °C |
| Ofstân nei puntferhâlding (D:S) | 50:1 |
| Emissiviteit | Ferstelber 0.1 oant 1.0 |
| Laser Type | Class 2, Wavelength 630-670 nm, Output <0.5mW |
| Item Gewicht | 0.44 pûn sterling |
| Binnen / bûtengebrûk | Outdoor |
| Reusability | Reusable |
Garânsje en stipe
The BTMETER BT-1800 Infrared Thermometer comes with a 1-jierrige garânsje from the date of purchase, covering manufacturing defects. For warranty claims, technical support, or any inquiries, please contact BTMETER customer service.
Manufacturer: BTMETER
Foar ekstra boarnen en produktynformaasje kinne jo de BTMETER Store.