HTC MT-4/MT-6 Infrared Thermometer User Manual
- June 4, 2024
- HTC
Table of Contents
HTC MT-4/MT-6 Infrared Thermometer
Introduction
Congratulations on your purchase of our professional non-contact infrared thermometers. These units can provide fast, easy and accurate temperature readings. With the non-contact (infrared) technology, they can be used to measure the surface temperature of hard-to-reach objects like electrified equipment or moving objects, without any damage or pollution to them.
Features
- Fast and easy measurement
- Precise non-contact measurement
- The built-in laser pointer increases the target accuracy
- Max/Min Record
- Backlight LCD display
- Emissivity adjustable from 0.1~1.0
- Automatic measurement range selection with resolution 0.1℃/℉
- Automatic trigger off
- Auto power off
Application
These units are widely used in Food preparation, Safety and Fire inspection, Plastic molding, Asphalt, Marine, Printing ink and dryer temperature, Diesel and Fleet maintenance.
Safety
- Use extreme caution when the laser beam is turned on.
- Do not point the beam toward anyone or any animals.
- Do not allow the beam to strike the eye from a reflective surface.
- Do not use the laser near explosive gases.
- Safety Symbol
Field of View
The meter’s field of view is 12:1, for example, if the meter is 12 inches from the target spot, the diameter of the target must be at least 1 inch. Other distance ratios are show below in the field of view diagram.
Specifications
MT- 4 | MT- 6 |
---|
Temp. range
| -50℃~550℃
(-58℉~1022℉)
| -50℃~750℃
(-58℉~1382℉)
Accuracy
| -20℃~0℃/-4℉~32℉:±4℃/7℉
Above 0℃/32℉:±2% of reading±2℃/3.6℉
Optical Resolution| D:S=12:1
Response time| ﹤500ms
Emissivity| adjustable from 0.1~1.0
Resolution| 0.1℃(0.1℉)
Spectral Response| 8~14um
Polarity Display
| Auto display, “-” indicates negative, while
positive with no sign.
Diode Laser| Output<1mW,630~670nm,class 2(Ⅱ)
Auto Power Off| Auto shuts off after 20 seconds inactivity
Operating Temp.| 0℃ to 50℃ / 32℉ to 122℉
Storage Temp.| -20℃ to 60℃ / -4℉ to 140℉
Relative Humidity| Operating: 10 ~ 95% RH,Storage:< 80%
RH
Power Supply| 9V battery
Weight| 176g
Dimensions( LWH)| 155.5×98.8×27.5mm
Meter Description
- A. LCD Display
- B. UP button
- C. Laser
- D. DOWN button
- E. SET button
- F. Wrist strap hole
- G. Battery cover
- H. Measurement trigger
- I. IR sensor
- J. Laser pointer
LCD Display Description
- A. Measurement Icon
- B. Data Hold Icon
- C. Emissivity Icon
- D. Laser Icon
- E. Low Battery Indication
- F. ℃/℉Icon
- G. Current temperature value
- H. Max/Min Record value
- I. Max/Min Icon
- J. Colour LCD back Light is always ON
Operating Instruction
Operating steps:
- Hold the meter by its handle grip and point it toward the surface to be measured.
- Pull and hold the Trigger to turn the meter on, the “SCAN” icon will appear and begin testing.
- The surface temperature being tested will be displayed on the LCD screen.
- Release the trigger, the “HOLD” icon will appear, and the reading will be hold for several seconds.
- The meter will automatically shut off after 20 seconds.
Measurement Note:
If the meter used in an ambient temperature with wide temperature change, allow it at least 30 minutes to adjust to it. The laser is designed for aiming only; it can be shut off while operating in short distance to save the battery.
Button Function
-
℃/℉button: In Measurement Mode, press button“ ”to switch the temperature unit ℃ or ℉.
-
Laser pointer:In“HOLD”Mode press button“ ”to turn on/off laser pointer.
-
SEL Button
-
After power on the meter, press button“ ”to review MAX and
MIN value. -
After power on the meter, keep pressing button“ ” until ” E”icon flashes on the screen, then loose button“ ”, enter into
-
Emissivity Mode, press button“ ” to adjust emissivity value, then keep pressing button“ ” return to the normal measurement mode.
-
Battery Replacement
- When the low battery icon“ ”appears, replace the meter’s battery.
- Open the battery compartment, replace the 9V battery and close the battery compartment cover.
Notes
Work Principle
- The infrared thermometer is designed for measuring surface temperature of an object.
- The optical sensor can emit, reflect and transmit energy, which is collected and focused on a detector, then translate it into the temperature reading by electronics and displayed on the LCD screen.
- The laser is used for aiming the target object only.
Field of View
- The object under test should be larger than the spot size calculated by the field of view diagram.
- The smaller the target object is, the closer the meter should be to it for accurate measuring.
- When accuracy is critical, make sure the target is at least twice as large as the spot size.
Distance & Spot Size
As distance (D) from the object increases, the spot size (S) of the area
measured by the unit becomes larger.
Locating a hot spot
To find a hot spot, first aim the thermometer to the outside of target area,
then scan across in an up and down
Notice
- Not recommend for measuring shiny or polished metal surfaces like stainless steel, aluminum, etc.
- Do not make measurements through a transparent surface such as glass.
- If the surface of the object under test is covered with frost, oil, grime, etc., clean before taking measurements.
Maintenance
- Do not use volatile liquids to clean the unit, swipe it with dry soft cloth.
- Do not disassemble the unit, repair it by qualified personnel
- Do not immerse it in water.
- Do not store it in high temperature or humidity.
Accessories
- User’s manual
- 9V Battery
- carry case
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