42529 - Outdoor thermometer Extech - Free user manual and instructions

Type	Infrared Thermometer (Non-contact)
Brand	Extech
Model	42529
Measurement Range	-20 to 320°C (0 to 600°F)
Resolution	1°C/F
Accuracy	±2% of reading or ±2°C (4°F) (whichever greater, at 18-28°C ambient)
Emissivity	0.95 fixed
Field of View (D:S)	6:1 ratio
Laser Type	Class II, <1mW, 675nm
Spectral Response	6 to 14 μm
Display	3½ digit backlit LCD with function indicators
Display Rate	1 second approx.
Over Range Indication	Audible tone and 'OVER' on LCD
Operating Temperature	0°C to 50°C (32°F to 122°F)
Operating Humidity	Max 80% RH
Power Supply	9V battery (included)
Auto Power Off	After 7 seconds
Weight	180g / 6.35 oz
Dimensions	211 x 89 x 38mm (8.3 x 3.5 x 1.5")
Battery Replacement	Easy access via slide-off cover on handle bottom
Laser Safety	Class II laser product; do not stare into beam
Cleaning	Use soft cloth; avoid solvents
User-Replaceable Parts	9V battery

Frequently Asked Questions - 42529 Extech

How do I turn on the Extech 42529?

Press and hold the red Trigger to turn the meter on and begin testing. Release to hold the reading.

How do I use the laser pointer?

While pressing the Trigger, press the red Laser button to turn on the laser. Aim the beam approximately half an inch above the target point. Press again to turn off.

What is the accuracy of the thermometer?

Accuracy is ±2% of reading or ±2°C (4°F), whichever is greater, when ambient temperature is between 18°C and 28°C (64°F to 82°F).

What is the field of view?

The field of view ratio is 6:1 (distance to spot). For example, at 30 cm distance, the spot diameter is 5 cm.

Can I measure shiny or reflective surfaces?

For highly reflective surfaces, apply masking tape or flat black paint before measuring to improve accuracy.

What does 'OVER' on the display mean?

It indicates the measurement exceeds the range of -20 to 320°C (0 to 600°F). An audible tone will also sound.

How do I change the temperature units?

Press the blue °C or °F buttons to switch between Celsius and Fahrenheit.

Why does the meter turn off automatically?

The meter has an auto power-off feature that shuts it down after 7 seconds of inactivity to conserve battery.

How do I replace the battery?

When the low battery symbol appears, slide off the battery compartment cover on the bottom of the handle, replace the 9V battery, and reinstall the cover.

Can the thermometer measure through glass?

No, the meter cannot measure through transparent surfaces such as glass. Steam, dust, or smoke can also obscure measurements.

USER MANUAL 42529 Extech

InfraRed Thermometer

with Laser Pointer

MODEL 42529

Congratulations on your purchase of the Model 42529 IR Thermometer. This thermometer makes non-contact (infrared) temperature measurements at the touch of a button. The built-in laser pointer increases target accuracy while the backlit LCD and handy push-buttons combine for convenient, ergonomic operation. Proper use and care of this meter will provide years of reliable service.

Safety

• Use extreme caution when the laser pointer beam is on
• Do not point the beam toward anyone's eye or allow the beam to strike the eye from a reflective surface
• Do not use the laser near explosive gases or in other potentially explosive areas

Meter Description

1. LCD Display
2. Function Buttons
3. Handle Grip
4. Laser Pointer
5. IR Sensor
6. Measurement Trigger
7. Battery Compartment

1. Hold the meter by its Handle Grip and point it toward the device whose temperature is to be measured.
2. Press and hold the red Trigger to turn the meter on and begin testing. The display will light if the battery is charged. Replace the battery if the display does not light.
3. While continuing to press the Trigger, push the red Laser button to turn on the laser pointer. Aim the red beam approximately a half inch higher than the point of test as shown in the diagram below (pressing the Laser button again turns the laser off).
4. While measuring, the SCAN display icon will appear on the LCD above the temperature measurement and to the left of the emissivity value (fixed at 0.95.).
5. If the measurement exceeds the useable temperature range (0 to 600 °F), the meter will emit a tone and the LCD will display 'OVER'.
6. Release the Trigger when the temperature stabilizes. The HOLD display icon will appear on the LCD indicating that the reading is being held.
7. Set the temperature units (°C or °F) using the blue °C and °F buttons.
8. Press the yellow Backlight key to turn on the LCD backlighting function.
9. The meter will automatically power down after 7 seconds.

Field of View

The meter's field of view is 6:1. For example, if the meter is 30.4cm from the target (spot), the diameter of the target must be at least 5.08cm . Other distances are shown below in the field of view diagram.

Note that measurements should normally be made less than 60.9cm from the target. The meter can measure from further distances but the measurement may be affected by external sources of light. In addition, the spot size may be so large that it encompasses surface areas not intended to be measured.

Measurement Notes

1. The object under test should be larger than the spot (target) size calculated by the field of view diagram (see diagram on previous page or on side of the meter).
2. If the surface of the object under test is covered with frost, oil, grime, etc., clean before taking measurements.
3. If an object's surface is highly reflective apply masking tape or flat black paint before measuring.
4. The meter cannot measure through transparent surfaces such as glass.
5. Steam, dust, smoke, etc. can obscure accurate measurements.
6. The meter compensates for deviations in ambient temperature. It can, however, take up to 30 minutes for the meter to adjust to extremely wide ambient temperature changes.
7. To find a hot spot, aim the meter outside the area of interest then scan across (in an up and down motion) until the hot spot is located.

Infrared Thermometer Specifications

Range / Resolution -20 to 320	°C (0 to 600°F)	1°C/F
Accuracy ± 2% of reading or ±	2 °C (4°F) whichever is greater.Note: Accuracy is specified for the following ambient temperature range: 18 to 28°C (64 to 82°F)
Emissivity 0.95 fixed value
Field of View D/S = Approx. 6:1 ratio (D = distance, S = spot)
Laser power Less than 1mW
Spectral response	6 to 14 μm (wavelength)

General Specifications

Display	31⁄2 digit backlit LCD display with function indicators
Display rate 1 second approx.
Over range indication Audible tone sounds and ‘OVER’ appears on the LCD when the measurement exceeds the measurement range spec.
Operating Temperature 0°C to 50°C (32°F to 122°F)
Operating Humidity Max. 80% RH.
Power Supply 9V battery
Automatic Power Off Meter shuts off automatically after 7 seconds
Weight 180g / 6.35 oz.
Size 211 x 89 x 38mm (8.3 x 3.5 x 1.5")

Battery Replacement

When the low battery symbol 📄 appears on the LCD, replace the meter's 9V battery. The battery compartment is located on the bottom of the meter's handle. Open the compartment by sliding the battery compartment cover off in the direction of the arrow. Replace battery and re-install the battery compartment cover.

Never dispose of used batteries or rechargeable batteries in household waste.

As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold.

Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end-of-life devices to a designated collection point for the disposal of electrical and electronic equipment

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