Extech Instruments EX210 Guide de l'utilisateur télécharger pdf (Page 8)

EX210-EU-EN-V2.1-08/10 8

NON-CONTACT INFRARED TEMPERATURE MEASUREMENTS

1. Rotate the function switch to the IR position. The upper right four digit temperature

display will switch on.

2. Press the MODE button to select °F or °C.

3. Aim the infrared sensor (top of meter) at the surface to be measured.

4. Press and Hold the IRT

button to turn on the IR thermometer and laser pointer.

The laser pointer identifies the surface spot to be measured and “SCAN” will flash in

the display.

5. Read the temperature in the display.

6. The area of the surface to be measured must be larger than the spot size as

determined by the distance to spot size values listed in the specification table.

7. Release the IRT

button to turn the IR thermometer and laser pointer off. “HOLD”

and the final measured value will remain in the display.

WARNING: Do not directly view or direct the laser pointer at an eye. Low power

visible lasers do not normally present a hazard, but may present some potential for hazard

if viewed directly for extended periods of time.

IR Spot to Distance Diagram

The 4:1 spot to distance ratio determines the size of the measured surface area with

respect to the distance the meter is held away from the surface.

IR Measurement Notes

1. The object under test should be larger than the spot (target) size calculated by the

field of view diagram.

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 to the

surface before measuring.

4. The meter will not make measurements through glass steam, dust, and smoke.

5. 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.

1”

@4”

2”

@8”

4”

@16”

20mm

@ 80mm

40mm

@ 160mm

80mm

@ 320mm

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Extech Instruments EX210 Guide de l'utilisateur Page 8

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