MT4 MAX - Thermometer FLUKE - Free user manual and instructions
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| Product Type | Infrared Thermometer |
| Brand | Fluke |
| Model | MT4 MAX |
| Temperature Range | -30°C to 400°C (-22°F to 752°F) |
| Accuracy | ±1.5% of reading or ±1.5°C (whichever greater) for 0°C to 400°C; ±3°C for -30°C to 0°C |
| Distance to Spot Ratio | 10:1 |
| Laser Sighting | Single point laser |
| Display Type | Backlit LCD |
| Response Time | <500 ms (95% of reading) |
| Emissivity | Fixed at 0.95 |
| Data Hold | Yes |
| Min/Max Readings | Yes |
| Auto Power Off | Yes, after 15 seconds of inactivity |
| Battery Type | 9V alkaline (one included) |
| Battery Life | Approximately 40 hours continuous use |
| Dimensions (H x W x D) | 152 x 101 x 38 mm (6.0 x 4.0 x 1.5 in) |
| Weight | 200 g (7.1 oz) |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Storage Temperature | -20°C to 60°C (-4°F to 140°F) |
| Safety Classification | Class 2 laser product; EN 60825-1 |
| Cleaning Instructions | Wipe casing with damp cloth; clean lens with soft, dry cloth. Do not use solvents. |
| Replaceable Parts | Battery only; no user-serviceable parts inside. |
| Repairability | Non-repairable by user; return to Fluke service center for repair. |
Frequently Asked Questions - MT4 MAX FLUKE
How do I switch between Celsius and Fahrenheit?
Press the °C/°F button located on the side of the thermometer to toggle between units.
What is the maximum distance I can measure accurately?
The distance to spot ratio is 10:1, meaning at 1 meter distance you measure an area of approximately 10 cm diameter.
How do I clean the lens?
Use a soft, dry cloth to gently wipe the lens. Avoid using any liquids or abrasive materials.
Why does the reading show 'Err'?
'Err' indicates the target temperature is outside the measurement range (-30°C to 400°C) or the sensor is malfunctioning. Check the target and try again.
Can I measure shiny or reflective surfaces?
Shiny surfaces may give inaccurate readings due to low emissivity. For best results, measure on a non-reflective area or use masking tape.
How do I replace the battery?
Slide the battery cover off the bottom, remove the old 9V battery, and insert a new one matching polarity. Replace the cover.
Is the laser dangerous?
The laser is Class 2 and safe for normal use. Avoid direct eye exposure; do not stare into the beam.
How long does the battery last?
A typical 9V alkaline battery lasts approximately 40 hours of continuous use. Low battery indicator appears when replacement is needed.
What does the 'HOLD' button do?
Pressing HOLD freezes the current reading on the display for easy recording. Press again to release.
Can this thermometer measure body temperature?
The MT4 MAX is designed for industrial use and not calibrated for medical body temperature measurement. Accuracy may not be suitable.
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