Triplett IRT350 User Manual
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Triplett IRT350 User Manual

Circular laser ir thermometer
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IRT350
Circular Laser IR Thermometer
USER MANUAL
Introduction
Congratulations on your purchase of the Triplett IRT350 12:1 Circular Laser
Infrared Thermometer. This thermometer can quickly and accurately determine
the surface temperature by measuring the infrared energy radiated from the
target surface. The circular laser accurately indicates he target and the area
within it.

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Summary of Contents for Triplett IRT350

  • Page 1 Circular Laser IR Thermometer USER MANUAL Introduction Congratulations on your purchase of the Triplett IRT350 12:1 Circular Laser Infrared Thermometer. This thermometer can quickly and accurately determine the surface temperature by measuring the infrared energy radiated from the target surface. The circular laser accurately indicates he target and the area...
  • Page 2 Safety Warnings: To prevent eye damage or personal injury, please read the following safety instructions before using the thermometer: Please do not irradiate people or animals with laser directly or indirectly. Precautions: Do not look directly at the laser emitter. Do not disassemble or modify the thermometer or laser.
  • Page 3 Specifications D:S ratio 12:1 MeasuCircular -20°C~600°C/ -4.0°F~1112°F range LCD size 1.2x 1.2” (30mm*30mm) Color EBTN (Enhanced Black Twisted LCD display Nematic) <0°C: ± (1.5°C+0.1°C/°C); ≥0°C: ±1.5°C or ±1.5% of reading, whichever is greater Accuracy <32°F: ± (3.0°F+0.1°F/°F); ≥32°F: ±3.0°F or ±1.5% of reading, whichever is greater ±0.1°C/°C or ±0.1%/°C, whichever is Temperature...
  • Page 4 Auto power off Low battery √ indication High/Low temperature √ Audible and LED alarms Data hold √ Unit conversion √ (°C/°F) MAX/MIN/AV √ G/DIF mode Lock √ measurement 99 sets Data storage Scheduled Interval from 1 minute to 4 days; up to 99 measurement times Circular laser, wavelength 630nm~670nm,...
  • Page 5 Drop test Battery type 9V alkaline battery (1604A) ≥8 hours (continuous temperature Battery life measurement) Product net 7.2oz (204g) weight Product size 6.3”x 3.5”X1.9”(161.5mm×90mm ×48mm) **NOTE: In some places with strong electromagnetic interference, the product measurement result may change by up to ±10°C or 20% of the measured value (taking whichever is greater).
  • Page 6  Scheduled measurement, for occasions where timing temperature monitoCircular is required  Tripod mount External Structure...
  • Page 7 Display Description Lock measurement Temperature indicator measurement alarm indicator Buzzer indicator Laser indicator Temperature hold Temperature indicator measurement indicator Low battery Temperature unit indicator indicator...

  • Page 8: Auto Power Off

    Emissivity Main display of indication the measured temperature Measurement Auxiliary display mode indication of the measured temperature Temperature logging Auto Scheduled mode and group Interval measurement mark number Date and time Operating Instructions  Viewing the Last Measured Value In the off state, short press (less than 0.5s) the trigger to turn on the thermometer and the measurement data held before last shutdown will be displayed.

  • Page 9: Manual Measurement

     Manual Measurement 1. Pull and hold the trigger after aiming at the target. The SCAN icon will flash indicating that the target object temperature is being measured. The measurement result will be updated on the LCD. 2. Release the trigger, the SCAN icon disappears, and the HOLD icon appears, indicating that the measurement has been stopped and the last measured value is held.
  • Page 10 (S) of the thermometer, and then determine the test distance (D) according to the D:S diagram For example, if you use the IRT350 to measure the temperature of an object with a diameter of about 4’’ (10cm), then according to the above, the spot size (S) of the thermometer should be about 2’’...
  • Page 11  Measurement Mode with Data Storage Function 1. Enter the measurement mode with data storage function: In the HOLD interface, short press the LOG button to enter the measurement mode with data storage function. The screen will display the LOG icon and the log group number. (With data storage) (Without data storage) 2.
  • Page 12 corresponding to the location. If there is no data, “----” will be displayed. 4. Delete all storage data: In the measurement mode with data storage function, long press the LOG button until the log group number is switched to “01” after 10s flashing of the screen.
  • Page 13 2. After turning on the scheduled measurement, follow the steps below to set its parameters: a) Short press the LOG button to select “Year → Month → Day → Hour → Minute” in turn to set the start time of the scheduled measurement.

  • Page 14: System Time Setting

    d) After setting the parameters, press the SET button or pull the trigger to return to the HOLD interface. The Auto Interval icon will flash. When the start time of the scheduled measurement is reached, the thermometer will automatically start temperature measurement and store the current time and measured value.
  • Page 15 button to select “Year → Month → Day → Hour → Minute” in turn and set the corresponding parameters. At this time, the selected setting position flashes, and the value can be adjusted by pressing the button. Add or subtract 1 each time by short press, and add or subtract 10 per second by long press.

  • Page 16: Function Setting

     High/Low Temperature Alarm On/Off Short press the HI/LO button to turn the high/low limit alarm function on and off in sequence. When HI limit alarm function is turned on and the measured temperature value is higher than the set high alarm limit, the red LED and HI indicator flash.
  • Page 17 In the HOLD interface, short press the SET button once/twice to enter the high/low alarm limit setting interface. Short press the LOG button to quickly select the preset high/low alarm limit value (P1-P5). If there is no desired value among the preset values, select any value closest to the high/low alarm limit, and adjust it by pressing the button.
  • Page 18 adjust it by pressing the button. Add or subtract 0.01 each time by short press, and add or subtract 0.1 per second by long press. 3. Temperature Unit Setting In the HOLD interface, short press the SET button until the temperature unit setting interface is displayed, and switch between °C and °F by pressing the button.

  • Page 19: Field Of View

    NOTE: Please follow the laser precautions when the laser is turned on to avoid damage to human or animal eyes. D:S (Distance and Spot Size) As the distance (D) from the target being measured to the thermometer increases, the spot size (S) on the measured area becomes larger.
  • Page 20 Poor Average Good Target > spot size Target = spot size Target < spot size Emissivity Emissivity is a symbol of the energy radiation of a material. The emissivity of most organic materials and coated or oxidized surfaces is about 0.95. To measure the temperature of a bright metal surface, cover the surface to be tested with masking tape or matt black paint with a high emissivity setting (if it is possible), wait for a period of time, and measure the temperature of the tape or black paint surface...
  • Page 21 Measured Surfaces Emissivity Metal Aluminum Oxidization 0.2-0.4 A3003 Alloy Oxidization Rough 0.1-0.3 Brass Burnishing Oxidization Copper Oxidization 0.4-0.8 Electric Terminal Board Hastelloy Alloy 0.3-0.8 Inconel Oxidization 0.7-0.95 Sand-Blasting 0.3-0.6 Electro Burnishing 0.15 Iron Oxidization 0.5-0.9...
  • Page 22 Rusting 0.5-0.7 Iron (Casting) Oxidization 0.6-0.95 Non-Oxidization Casting 0.2-0.3 Iron (Forging) Passivation Lead Rough Oxidization 0.2-0.6 Molybdenum Oxidization 0.2-0.6 Nickel Oxidization 0.2-0.5 Platinum Black Steel Cold Rolling 0.7-0.9 Steel Plate Rubbing 0.4-0.6 Steel Plate Burnishing Zinc Oxidization Non-Metal Asbestos 0.95...
  • Page 23 Asphalt 0.95 Basalt Carbon Non-Oxidization 0.8-0.9 Graphite 0.7-0.8 Silicon Carbide Ceramics 0.95 Clay 0.95 Concrete 0.95 Cloth Glass Convex Glass 0.76-0.8 Smooth Glass 0.92-0.94 Lead-Boron Glass 0.78-0.82 Plates 0.96 Plaster 0.8-0.95 0.98 Limestone 0.98 Paper 0.95 Plastics 0.95 Water 0.93 Soil 0.9-0.98 Wood...

  • Page 24: Maintenance

    Maintenance  Cleaning Use clean compressed air to blow away falling particles. Use wet cotton swab to carefully wipe lens surface. Use wet sponge or soft cloth to clean product exterior. Do not rinse the thermometer or immerse it in water. ...
  • Page 25 Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for use. Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of (1) one year from the date of purchase.

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