1. Selelekela
The Dr.meter IR-20 Non-Contact Digital Infrared Thermometer is designed for safe and accurate temperature measurement of various surfaces. This device utilizes infrared technology to provide quick readings without direct contact, making it ideal for measuring temperatures of objects that are difficult to reach, hazardous, or too hot/cold to touch. It features a backlit LCD display for easy readability and a laser pointer for precise targeting.
Figure 1: Dr.meter IR-20 Non-Contact Digital Infrared Thermometer.
2. Likarolo tsa lihlahisoa
- Litekanyo tseo e seng tsa Khokahano: Safely measure surface temperatures from a distance.
- Sebaka se Sephara sa Mocheso: Measures from -50°C to +550°C (-58°F to 1022°F).
- Nepahetse e Phahameng: Features a 12:1 distance-to-spot ratio for accurate readings at greater distances, with an accuracy of +/- 2% on 0.95 emissive surfaces.
- Nako ea Karabelo e potlakileng: Provides temperature readings in approximately 500ms.
- Built-in Laser Pointer: For precise targeting of the measurement area.
- Pontšo ea LCD ea Backlit: Large, clear display for easy reading, even in low-light conditions.
- Diyuniti tse Fetohang: Fetola ha bonolo lipakeng tsa Celsius (°C) le Fahrenheit (°F).
- Mosebetsi oa ho Tšoara Boitsebiso: Freezes the current temperature reading on the display.
- Koala Auto: Automatically powers off after a period of inactivity to conserve battery life.
- MIN/MAX Mode: Allows tracking of minimum and maximum temperatures during a scan.
3. Lintlha tsa Setegeniki
| Paramethara | Boleng |
|---|---|
| Lebitso la Mohlala | IR-20 |
| Mocheso Range | -50°C ho ea +550°C (-58°F ho ea ho 1022°F) |
| Ho nepahala | +/- 2% or 2°C (whichever is greater) on 0.95 emissive surfaces |
| Distance to Spot Ratio (D:S) | 12:1 |
| Nako ea Karabelo | 500ms |
| Ho se tsotelle | E tsitsitse ho 0.95 |
| Mofuta oa Pontšo | LCD e nang le Backlight |
| Mohloli oa Matla | 9V Battery (not included as per product spec, but some images show it included) |
| Litekanyo | Hoo e ka bang 5 x 5 x 5 inches |
| Boima ba Ntho | 6.4 lik'hilograma |
Figure 2: Key components of the Dr.meter IR-20 Infrared Thermometer.
4. Seta
4.1 Ho kenya Betri
- Locate the battery cover on the handle of the thermometer.
- Bula sekwahelo sa betri.
- Insert a 9V battery, ensuring correct polarity (+/-).
- Koala sekoaelo sa betri ka mokhoa o sireletsehileng.
Figure 3: Illustration of battery installation.
5. Litaelo tsa Ts'ebetso
5.1 Ho Nka Tekanyo
- Supa thermometer sebakeng seo u batlang ho se etsa.
- Press and hold the "Measure Key" (trigger) to begin scanning. The laser pointer will activate to indicate the measurement area.
- Palo ea mocheso e tla hlaha ponts'ong ea LCD.
- Release the "Measure Key" to hold the reading on the display (Data Hold function). The device will automatically shut off after a period of inactivity.
5.2 Konopo Mesebetsi
- Konopo ea Leseli (
): Toggles the backlight of the LCD display on or off. - °C/°F Button (): Switches the temperature unit between Celsius and Fahrenheit.
- Laser Button (): Toggles the laser pointer on or off.
- Konopo ea MODE: Cycles through measurement modes:
- **Continuous Mode:** Default mode, continuously updates temperature readings while the trigger is held.
- **MIN Mode:** Displays the minimum temperature recorded during a scan.
- **MAX Mode:** Displays the maximum temperature recorded during a scan.
Setšoantšo sa 4: Ka botlalo view of the LCD display and buttons.
5.3 Distance to Spot Ratio (D:S)
The IR-20 has a Distance to Spot Ratio (D:S) of 12:1. This means that at a distance of 12 inches from the target, the measurement spot diameter will be 1 inch. To ensure accurate readings, position the thermometer at an appropriate distance from the target so that the measurement spot is entirely within the object you wish to measure. Measuring too far away may result in inaccurate readings due to the inclusion of surrounding temperatures.
Figure 5: Understanding the Distance to Spot Ratio (D:S).
6. Tlhokomelo
- Ho hloekisa: Hlakola sesebediswa ka sesepa se bonolo, se soeufaditsweng, se sebedisitswengamp lesela. Se ke oa sebelisa li-abrasive cleaners kapa solvents.
- Tlhokomelo ea Lense: The infrared lens is the most delicate part of the thermometer. Clean it carefully with a soft cloth or cotton swab moistened with water or medical alcohol.
- Polokelo: Store the thermometer in a cool, dry place away from direct sunlight and extreme temperatures. Remove the battery if the device will not be used for an extended period.
7. Ho rarolla mathata
| Bothata | Lebaka le ka khonehang | Tharollo |
|---|---|---|
| "Err" or "OL" displayed | Temperature is outside the measurement range (-50°C to +550°C). | Ensure the target temperature is within the device's specified range. |
| Inaccurate readings on reflective surfaces | Infrared thermometers may struggle with highly reflective surfaces (e.g., polished metal, mirrors) due to their fixed emissivity. | To measure reflective surfaces, apply a piece of masking tape or a non-reflective matte paint to the surface and measure the temperature of the tape/paint. |
| Sesebelisoa ha se sebetse | Betri e tlase kapa e shoele; ho kenya betri ka tsela e fosahetseng. | Replace the 9V battery with a new one. Check battery polarity. |
| Temperature reading fluctuates | Rapid changes in ambient temperature; measuring a moving target; device not held steady. | Allow the thermometer to stabilize in the environment. Ensure the target is stationary and hold the device steady during measurement. |
8. Boitsebiso ba Tšireletseho
- Tšireletso ea Laser: This device uses a Class II laser product. Do not stare directly into the laser beam or point it at people or animals. Avoid direct eye exposure.
- Tšebeliso e sa Etseng Meriana: This thermometer is designed for industrial and household use only. It is eseng intended for measuring human or animal body temperature. Readings for biological subjects will not be accurate.
- Tšireletseho ea Motlakase: Do not expose the device to water or extreme humidity. Do not attempt to disassemble or modify the thermometer.
- Meeli ea Mocheso: Do not expose the device to temperatures outside its operating range.
9. Tiisetso le Tšehetso
For warranty information or technical support, please refer to the official Dr.meter websebaka kapa ikopanye le litšebeletso tsa bareki. Boloka rasiti ea hau ea theko e le bopaki ba hore u rekile.
