TPI 381B - Combination Non-Contact/Contact Thermometer
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The Test Products International (TPI) 381b Combination Non-Contact/Contact Thermometer is a versatile tool for accurate temperature measurement in various aircraft applications. This thermometer offers non-contact infrared and contact temperature measurement capabilities, providing comprehensive temperature data for efficient troubleshooting and system optimization.
Key Features
- Versatile Temperature Measurement: Accurately measure the surface temperatures of stationary and moving objects.
- Precise Readings: Delivers repeatable measurements with 0.1° resolution for accurate data analysis.
- User-Friendly Design: Simple one-button operation and clear display for efficient use.
- Durable Construction: Built to withstand the rigors of aircraft maintenance environments.
- Advanced Features: Circle laser sighting for precise target identification, automatic data hold, and temperature compensation for accurate readings.
Specifications
- Distance-to-Spot Ratio: 9:1
- Temperature Range:
- Non-Contact: -4° to 572°F (-20° to 300°C)
- Contact: -148° to 2,192°F (-100° to 1,200°C)
- IR Accuracy @ 23°C and 0.95 emissivity: ± 5°F (3°C) below 32°F (0°C), ± 2% of reading or ± 3.5°F (2°C), whichever is greater at >32°F (0°C)
- Contact Accuracy: +(0.5% of reading + 3.5°F (2°C)
- Emissivity: 0.95
- Laser Sighting: Output <1mW, Wavelength 645-660nm, Class II Laser
- °F or °C: Selectable (side switch in the handle)
- Contact or Non-Contact: Selectable (side switch in the handle)
- Display Hold: Yes
- Response Time: 500 milliseconds
- Spectral Response: 7-14 um
- Operating Temperature: 32° to 120°F (0° to 50°C)
- Battery Type: 9 Volt
| General Information | |
|---|---|
| Part # | 381B |
| Manufacturer | Test Products International |
| Shipping Information | |
|---|---|
| Product Weight | 0.7 lbs. |
| Product Dimensions | 10 x 8 x 6 in. |
| Schedule B | 9025198080 |
| ECCN | EAR99 |
AIRCRAFT COMPATIBILITY
This item is for use on all aircraft.
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QUESTIONS & ANSWERS
The laser spot needs to be showing inside the target area. An 8:1 distance-to-spot ratio means you are measuring a 1" diameter area at a distance of 8".
Distance is unlimited. The size of the target area sets the limit on distance for accurate measurements. For example, if the area you wish to measure is 1 foot in diameter, then you will need to be within 8 feet to record an accurate temperature.
Approximately one-half inch in diameter.
Emissivity is the ratio of an object's infrared emission compared to a theoretical black body considered 1. Emissivity is always less than 1.
Adjustable emissivity allows your non-contact thermometer to be adjusted to the surface you are checking to ensure more accurate readings.
