1. Įvadas
The BENETECH Non-Contact Infrared Thermometer is designed for quick and accurate temperature measurement of various surfaces without physical contact. It is ideal for measuring high-temperature, hazardous, or hard-to-reach objects. The device operates by detecting the infrared energy radiated from an object's surface, converting it into an electrical signal, and displaying the temperature reading on an LCD screen.
This unit consists of an optical system, photoelectric sensor, signal amplifier, signal processing circuit, and LCD display. The optical system converges infrared energy radiated from the object's surface onto the photoelectric sensor, which converts the energy into a corresponding electrical signal. This signal is then amplified and processed into a digital reading displayed on the LCD.
2. Saugos informacija
2.1. Įspėjimai
- Do not point the laser directly at eyes or indirectly at eyes via reflective surfaces when using this unit.
- This instrument cannot measure through transparent surfaces. For example, glass, plastic, etc. Otherwise, the measured value will be the surface temperature of the transparent object.
- Moisture, dust, smoke, or other particles will obstruct the instrument's lens, affecting measurement accuracy.
2.2. Perspėjimai
- Protect the thermometer from electromagnetic fields (EMF) generated by arc welders and induction heaters.
- If moving between environments with large or drastic changes in ambient temperature (thermal shock), wait 30 minutes for the thermometer to stabilize before use.
- Do not place the thermometer near or on high-temperature objects.
3. Produktas baigtasview
3.1. Komponentai
The thermometer features a pistol-grip design for comfortable handling. Key components include:
- Infrared Sensor & Laser Aperture
- LCD ekranas
- Trigeris
- Control Buttons (MODE, UP/Laser, C/F)
- Baterijų skyrius
1 pav.: priekis view of the GM333 model, showing the display, buttons, and trigger.
2 pav.: šonas view of the GM333 model, highlighting the trigger and battery compartment location.
3 paveikslas: viršuje view of the GM333 model, illustrating the Distance-to-Spot (D:S) ratio.
3.2. LCD Display Indicators (Refer to Figure 4 in the manual image)
Figure 4: Excerpt from the manual showing LCD display and button functions.
- HOLD Symbol: Indicates the last measurement is held on the display.
- Laser Aiming Symbol: Shows when the laser pointer is active.
- Backlight On Symbol: Indicates the display backlight is active.
- Emissivity Symbol: Displays the current emissivity setting.
- Low Battery Symbol: Įspėja, kai akumuliatoriaus įkrova maža.
- Auto Power Off Symbol: Rodo, kad automatinio išjungimo funkcija yra aktyvi.
- Ambient Temperature Symbol: Rodo esamą aplinkos temperatūrą.
- MAX/MIN Symbols: Indicate maximum or minimum temperature modes.
- °C/°F Unit Symbols: Shows the selected temperature unit (Celsius or Fahrenheit).
- Current Measurement Reading: The main temperature value.
4. Specifikacijos
| Parametras | GM333 / GM333A | GM533A |
|---|---|---|
| Measurement Temperature Range | -50°C iki 400°C (nuo -58°F iki 752°F) | -50°C iki 530°C (nuo -58°F iki 986°F) |
| Matavimo tikslumas | 0°C ~ 400°C (32°F ~ 752°F): ±1.5°C (±2.7°F) or ±1.5% -50°C ~ 0°C (-58°F ~ 32°F): ±3°C (±5°F) | |
| Rezoliucija | 0.1°C arba 0.1°F | |
| Pakartojamumas | 1% rodmens arba 1°C | |
| Reagavimo laikas | 500 msek, 95 % atsakas | |
| Spektrinis atsakas | 5um-14um | |
| Atstumo taško santykis (D:S) | 12:1 | |
| Spinduliuotė | 0.95 (Pataisyta) | 0.10-1.00 (Adjustable) |
| Darbinė temperatūra | nuo 0°C iki 40°C (32°F iki 104°F) | |
| Darbinė drėgmė | 10% RH - 90% RH non-condensing | |
| Laikymo temperatūra | -20°C iki 60°C (nuo -4°F iki 140°F) | |
| Galia | 2 x 1.5 V AAA baterija | |
| Baterijos veikimo laikas | apytiksliai 12 valandas | |
4.1. Emissivity Table (Common Materials)
Figure 5: Excerpt from the manual showing common material emissivity values.
| Medžiaga | Spinduliuotė |
|---|---|
| Akmuo | 0.70 |
| Ledas | 0.97 |
| Dažai | 0.93 |
| Vanduo | 0.93 |
| Mediena | 0.94 |
| Guma | 0.95 |
| Betono | 0.94 |
| Asfaltas | 0.94 |
| Plyta | 0.93 |
| Popierius | 0.90 |
| Keramika | 0.92 |
| Stiklas | 0.85 |
| Geležis | 0.70 |
| Varis | 0.78 |
| Aliuminis | 0.90 |
| Aliejus | 0.94 |
| Maistas | 0.90 |
| Oda | 0.98 |
5. Sąranka
5.1. Akumuliatoriaus įdėjimas
- Locate the battery compartment on the handle (refer to Figure 2).
- Atidarykite akumuliatoriaus skyriaus dangtelį.
- Įdėkite dvi (2) 1.5 V AAA baterijas, užtikrindami teisingą poliškumą.
- Saugiai uždarykite akumuliatoriaus skyriaus dangtelį.
6. Naudojimo instrukcijos
6.1. Quick Measurement
- Pull the trigger to turn on the device. The LCD will display "SCAN" and the current temperature.
- Aim the laser pointer at the center of the object you wish to measure.
- Release the trigger. The temperature reading will be held on the display ("HOLD" symbol will appear).
- Įrenginys automatiškai išsijungs maždaug po 20 sekundžių neveiklumo.
6.2. Locating Hot Spots
To find a hot spot, aim the thermometer at the area and slowly scan the region by moving the laser spot up and down. The highest temperature detected will be displayed.
Figure 6: Excerpt from the manual illustrating hot spot location technique.
6.3. Mygtukų funkcijos
- C/F Button (Red Button): Press to switch between Celsius (°C) and Fahrenheit (°F) temperature units.
- UP Arrow / Laser Button:
- Press to turn the laser pointer ON or OFF.
- In Emissivity (EMS) or Calibration (CAL) mode, use this button to increase values.
- DOWN Arrow / MODE Button:
- Press to cycle through measurement modes: MAX (Maximum), MIN (Minimum), AVG (Average), DIF (Difference), EMS (Emissivity), CAL (Calibration), and back to the standard measurement interface.
- In Emissivity (EMS) or Calibration (CAL) mode, use this button to decrease values.
Note on MAX/MIN modes: When in MAX or MIN mode, hold the trigger to continuously measure. The display will show the maximum or minimum temperature recorded during that continuous measurement session.
6.4. Advanced Functions (GM333A & GM533A only)
- Reguliuojamas spinduliavimas: In EMS mode, use the UP/DOWN buttons to adjust the emissivity value between 0.10 and 1.00.
- Savarankiškas kalibravimas: In CAL mode, use the UP/DOWN buttons to adjust the calibration offset between -5.0°C and +5.0°C.
- Aukštos/žemos temperatūros pavojaus signalas: Set high and low temperature thresholds. An alarm will sound if the measured temperature exceeds or falls below these limits. (Specific setting instructions may vary, refer to on-screen prompts).
7. Priežiūra
7.1. Objektyvo valymas
- Use clean compressed air to blow away any loose contaminants.
- Gently wipe away small residues with a damp medvilninis tamponas.
- Carefully wipe the surface with a damp medvilninis audinys.
- Do NOT use any solvents to clean the plastic lens.
7.2. C valymasasing
Išvalykite termometrą casing su reklamaamp sponge or soft cloth using mild soap and water.
Warning: Do NOT immerse the thermometer in water.
8. Problemų sprendimas
- No display or low battery indicator: Replace the batteries with new 1.5V AAA batteries.
- Netikslūs rodmenys:
- Įsitikinkite, kad objektyvas švarus ir be jokių kliūčių.
- Check the emissivity setting (if adjustable) and adjust it according to the material being measured.
- Allow the device to stabilize for 30 minutes if moved between environments with significant temperature changes.
- Ensure the D:S ratio is appropriate for your measurement distance.
- Lazeris neveikia: Check if the laser is enabled via the UP/Laser button.
- Įrenginys neįsijungia: Check battery installation and charge.
9. Garantija ir palaikymas
For warranty information or technical support, please contact your seller or the manufacturer directly. Keep your purchase receipt as proof of purchase.
