EX800 Series Version 3.2 8/07

10

8”

3”

1”

4”

24”

0.5”

(10cm)

(1.25cm)

(20cm)

(2.5cm)

(60cm)

(7.5cm)

Distance to object

Diameter of spot

Non-Contact InfraRed Temperature Measurements

1.

Set the function switch to the IR Temp

position.

2.

Aim the infrared sensor (rear of the meter) at

the surface to be measured.

3.

Press the

button in the center of the rotary

function switch to turn on the laser pointer and

identify the surface spot to be measured.

4.

The area of the surface to be measured must

be larger than the spot size as determined by

the distance to spot size specification.

5.

Read the temperature in the display.

Note: See the “Temperature Units” paragraph to select

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 8:1 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 may not make accurate measurements through transparent surfaces such

as glass.

5.

Steam, dust, smoke, etc. can obscure measurements.

6.

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.