Greenlee TG-1000 Infrared Thermometer

Introduction

Read and understand all of the instructions and safety information in this manual before operating or servicing this tool.

Contact Information: 52059455 | 1.800.561.8187 | www.icm.com | information@itm.com

© 2011 Greenlee Textron Inc.

Description

The Greenlee TG-1000 Infrared Thermometer is a hand-held surface temperature sensing device. Its non-intrusive measuring capability is safer and quicker than other methods and is well suited for checking the surface temperature of circuit breakers, motors, HVAC/R equipment, engines, etc. This device measures surface temperature by gathering three forms of infrared energy—emitted, transmitted, and reflected—from an object and translating that energy into a temperature. Features include:

• Laser sighting: Indicates the approximate center of the measurement area.
• User-adjustable high and low temperature alarms.
• Automatic recording of maximum, minimum, difference, and average temperatures.
• Lock mode: Allows long-term measurements without holding the trigger. The laser is turned off in Lock mode unless the trigger is held down.

Safety

Safety is essential in the use and maintenance of Greenlee tools and equipment. This instruction manual and any markings on the tool provide information for avoiding hazards and unsafe practices. Observe all safety information.

Purpose of this Manual: This manual familiarizes personnel with the safe operation and maintenance procedures for the Greenlee TG-1000 Infrared Thermometer. Keep this manual available to all personnel.

?️ Do not discard this product or throw away!

All specifications are nominal and may change as design improvements occur. Greenlee Textron Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

Important Safety Information

⚠️ SAFETY ALERT SYMBOL: This symbol is used to call your attention to hazards or unsafe practices that could result in injury or property damage. The signal word indicates the severity of the hazard, and the message provides information for prevention.

• DANGER: Immediate hazards that, if not avoided, WILL result in severe injury or death.
• WARNING: Hazards that, if not avoided, COULD result in severe injury or death.
• CAUTION: Hazards or unsafe practices that, if not avoided, MAY result in injury or property damage.

Read and understand this material before operating or servicing this equipment. Failure to understand how to safely operate this tool could result in an accident causing serious injury or death.

Electric shock and fire hazard:

• Do not expose this unit to rain or moisture.
• Do not use the unit if it is wet or damaged.
• Use this unit for the manufacturer's intended purpose only, as described in this manual. Any other use can impair the protection provided by the unit. Failure to observe these warnings could result in severe injury or death.

Additional Safety Precautions

Electric shock hazard:

• Do not open the case, except for the battery compartment.
• Before opening the case, release the trigger and shut off the unit. Failure to observe these warnings could result in severe injury or death.

Medical applications warning: This unit is not intended for medical applications. Failure to observe this warning could result in severe injury or death.

CAUTION: LASER RADIATION—DO NOT STARE INTO BEAM

Max. Output <1 mW, Wavelength: 635-660 nm. CLASS II LASER PRODUCT. Complies with 21 CFR, Chapter 1, subchapter J.

☢️ Laser hazard: Avoid laser exposure. Do not point laser directly at eye or at reflective objects. Failure to observe these precautions may result in injury.

Electric shock hazard:

• Do not attempt to repair this unit. It contains no user-serviceable parts.
• Do not expose the unit to extremes in temperature or high humidity. Refer to “Specifications.” Failure to observe these precautions may result in injury and can damage the unit.

Further Safety and Operational Notes

CAUTION:

• Temperature readings will be inaccurate on highly reflective objects.
• Temperature readings will be inaccurate on objects if emissivity is not adjusted properly. Follow masking and emissivity adjustment procedures.
• Allow 30 minutes for the unit to adjust to large changes in ambient temperature; inaccurate readings can result.
• Clean lens periodically; inaccurate readings can result. Refer to the “Maintenance” section. Failure to observe these precautions may result in injury and can damage the unit.

IMPORTANT:

• Using this unit near equipment that generates electromagnetic interference can result in unstable or inaccurate readings.
• Protect the unit against static electricity.

CE Certification: This instrument conforms to the following standards:

• EN50081-1:1992, Electromagnetic Emissions
• EN50082-1:1992, Electromagnetic Susceptibility

Readings may be affected if the unit is operated with a radio frequency electromagnetic field of approximately 3 volts per meter, but the performance of the instrument will not be permanently affected.

CFR 21 1040.10 and 1040.11: Performance Standards for Light-Emitting Products.

Identification

The instrument features the following components:

1. Display
2. Decrease button and °C/°F selector
3. Mode selector
4. Increase button and Lock button
5. Trigger
6. Battery compartment door
7. Lens
8. Laser

Display Icons:

• 10. Hold mode indicator
• 11. Full battery indicator
• 11A. Low battery indicator
• 11B. Dead battery indicator
• 12. Laser ON indicator
• 13. Backlight ON indicator
• 14. Celsius or Fahrenheit indicator
• 15. Lock mode indicator
• 16. Temperature indicator
• 17. Mode value indicator
• 18. Mode indicator

Symbols on the Unit:

• ⚠️ Warning—Read the instruction manual.
• ♻️ Recycle product in accordance with manufacturer's directions.
• ☢️ Laser radiation is emitted from this unit.

Using the Features

Basic Features

• To turn the laser on or off: Press and hold the trigger, then momentarily press the °C/°F button.
• To turn the backlight on or off: Press and hold the trigger, then momentarily press the Lock button.
• To change between Celsius and Fahrenheit: If the LCD is blank, press and release the trigger. Momentarily press the °C/°F button.
• To lock the trigger for continuous measurement: If the LCD is blank, press and release the trigger. Momentarily press the Lock button. Momentarily press the Lock button again to return to normal measurement. The unit will automatically exit Lock mode after 60 minutes.

Advanced Features

Press the Mode button to access advanced features. They appear in this order: Emissivity Display (E), Emissivity Setting (↓↑), Maximum (MAX), Minimum (MIN), Difference (dIF), Average (AVG), High Alarm Limit (HAL), and Low Alarm Limit (LAL).

Setting Alarm Points

After selecting the HAL or LAL mode, use the °C/°F or Lock button to set the alarm point. A tone will sound if the temperature is higher or lower than the corresponding set point.

Measurement Review

After the unit shuts off, press Mode to review measurements:

• MAX: The highest recorded temperature among all readings.
• MIN: The lowest recorded temperature among all readings.
• dIF: The difference between the maximum and minimum readings.
• AVG: A weighted rolling average of all readings.

Note: Values for MAX, MIN, dIF, and AVG are reset each time the trigger is pressed.

Note: The AVG feature acts as a filter to eliminate fluctuations from temperature readings. It is not an arithmetic mean but a rolling weighted average that smoothes data and excludes sudden spikes.

Distance from Target

Thermometers measure surface temperature by sensing emitted, reflected, and transmitted infrared energy. The sensor collects this energy from the measured area (spot size). The spot size varies with distance; it increases as distance increases. For accuracy, the spot size must be somewhat smaller than the target area. When accuracy is critical, the spot size should be half the target size. If the spot size is larger than the target size, the thermometer will measure background temperature, resulting in inaccurate readings.

Diagram Description: Two scenarios are illustrated. Object 1 shows the thermometer at the correct distance, with the target area slightly larger than the laser spot. Object 2 shows the thermometer too far away, with the target area smaller than the laser spot, indicating that background temperature will be measured.

Distance to Spot Size

The distance-to-spot-size (D:S) ratio indicates the appropriate distance to the target. The nominal D:S ratio for the TG-1000 is 12:1.

Diagram Description: A graphic illustrating the 12:1 Distance to Spot Size ratio, showing examples of spot diameter at various distances: 6.67 inches at 80 inches, 3 inches at 36 inches, 2 inches at 24 inches, 0.17 meters at 2 meters, 0.08 meters at 1 meter, and 0.05 meters at 0.6 meters. It is labeled "Nominal Spot Diameter at 90% Energy".

Operation

CAUTION: LASER RADIATION—DO NOT STARE INTO BEAM

Max. Output <1 mW, Wavelength: 635-660 nm. CLASS II LASER PRODUCT. Complies with 21 CFR, Chapter 1, subchapter J.

1. Refer to "Typical Measurements" for specific measuring instructions.
2. Test the unit on an object with a known temperature. If the unit does not function as expected, replace the batteries.
3. To measure the temperature of a selected area: Press and hold the trigger and point the thermometer at the object. The laser indicates the approximate center of the measured area. The measured temperature and advanced feature data will appear on the display. Release the trigger after measurement. "HOLD," the final temperature measurement, and advanced feature data will remain on the display for 1 minute.
4. To take more than one temperature measurement, or to locate a hot spot: Press and hold the trigger and scan the objects. The unit will record the maximum, minimum, difference, and average temperatures.

Refer to "Advanced Features" in the "Using the Features" section for other functions.

Limitations

• The thermometer cannot measure through transparent objects (e.g., glass, plastic); it measures the surface temperature of the object itself.
• Steam, dust, smoke, or other particles can prevent accurate measurement by obstructing the unit's infrared sensor.

Locating a Hot Spot

To find a hot spot, aim the thermometer outside the area of interest and scan across with an up and down motion.

Troubleshooting

Typical Measurements

Diagram Description: Illustrations show the TG-1000 being used for:

• Electronics: Measuring temperature on a circuit board.
• Power Distribution: Measuring temperature on electrical components.
• HVAC: Measuring temperature on an HVAC unit's line.

Notes for HVAC:

• Minimum width of line is 25 mm (1") for accurate reading.
• Non-insulated line.

Emissivity

Emissivity is the ability of an object to emit infrared energy. Most objects have an emissivity value of about 0.95. Some objects, like polished or shiny metallic surfaces, have much lower emissivity, leading to inaccurate temperature measurements.

CAUTION:

• Temperature readings will be inaccurate on highly reflective objects.
• Temperature readings will be inaccurate on objects if emissivity is not adjusted properly. Follow masking and emissivity adjustment procedures. Failure to observe these precautions may result in injury and can damage the unit.

Masking a Surface to Determine Emissivity

To determine the effect of emissivity, cover the surface with masking tape or flat black paint (emissivity ~0.95). Ensure tape/paint can withstand the anticipated temperature. Allow time for the covering to reach the material's temperature. Measure the covered area and a nearby area. Readings should be similar; if not, emissivity may be affecting measurements.

Compensating for Emissivity

• If the surface temperature is known, adjust the emissivity setting until the unit agrees with the known temperature.
• If the material is known, adjust emissivity according to the "Common Emissivities" table.
• Otherwise, mask the surface, measure the masked area (emissivity set at 0.95), measure the unmasked surface, and adjust emissivity until the temperatures agree. Record the emissivity value for future readings.

Common Emissivities and Accuracy

Common Emissivities

*oxidized
**opaque, over 0.51 mm (0.0020") thick
***natural

Accuracy Table for Infrared Sensor

Specifications

• Display: 4-digit LCD (999.9 or 9999 maximum display)
• Response Time: 1 second, 90% response
• Temperature Range: Infrared Sensor: -60 °C to 550 °C (-76 °F to 1022 °F)
• Spectral Response: 8 to 14 µm
• Repeatability: ± 0.5% of reading or ± 1 °C (± 2 °F), whichever is greater
• Emissivity: 0.10 to 1.0, digitally adjustable
• Ambient Operating Temperature Range: 0 °C to 50 °C (32 °F to 122 °F)*
• Relative Humidity: 10% to 90% (non-condensing) at < 30 °C (86 °F) ambient temperature
• Altitude: 2000 m (6500') maximum
• Storage Conditions: -10 °C to 60 °C (14 °F to 140 °F)*. Remove batteries.
• Battery: Two 1.5 volt batteries (AAA, NEDA 24A or IEC LR03)

* For improved accuracy, allow unit 30 minutes to adjust to large change in temperature.

Statement of Conformity

Greenlee Textron Inc. is certified in accordance with ISO 9001 (2000) for our Quality Management Systems. The instrument enclosed has been checked and/or calibrated using equipment that is traceable to the National Institute for Standards and Technology (NIST).

Maintenance

CAUTION: Electric shock hazard: Do not attempt to repair this unit. It contains no user-serviceable parts. Failure to observe this precaution may result in injury and can damage the unit.

Battery Replacement

1. Slide the door down and away from the handle.
2. Replace the batteries (observe polarity).
3. Close the battery compartment door.

Cleaning

Lens

1. Blow off loose particles using clean compressed air.
2. Gently brush any remaining debris away with a camel hair brush or soft cloth.
3. Carefully wipe the surface with a water-moistened cotton swab.

Note: Do not use solvents!

Housing

Periodically wipe the housing with a damp cloth and mild detergent; do not use abrasives or solvents.

Lifetime Limited Warranty

Greenlee Textron Inc. warrants to the original purchaser of these goods for use that these products will be free from defects in workmanship and material for their useful life, excepting normal wear and abuse. This warranty is subject to the same terms and conditions contained in Greenlee Textron Inc.'s standard one-year limited warranty.

For items not covered under warranty (such as items dropped, abused, etc.), a repair cost quote is available upon request.

Note: Prior to returning any test instrument, please check replaceable batteries or make sure the battery is at full charge.