5.Record the temperature from the display.

6.Release the MEASURE button. The last reading will remain locked on the display for 10 seconds after releasing the button.

2.6 SCAN Mode Temperature Measurements

Use this measurement mode for thermal scanning of a tar- get or when measuring targets located at a distance. The OS950 is a wide-angle thermal scanner with a fixed emis- sivity of 0.9. The target's temperature is continuously dis- played and updated 10 times per second for as long as you hold the MEASURE button down.

The OS950 displays the average temperature of everything within the sensor's field of view measurement area. The size of the measuring area depends on the distance of the device from the target. The OS950 has a 1:1 field of view, which

means that this unit will measure a 1"diameter target area when the device is 1" from the target.

2.6.1 General Operation

For continuous temperature measurement of a target or for temperature measurement at a distance, use the following procedure.

1.Determine the appropriate measurement distance from your desired target.

2.Make sure the MODE switch is on SCAN.

3.Point the nosepiece at the target.

4.Press and hold the MEASURE button.

5.Record the temperature from the display.

6.Release the MEASURE button. The last reading will remain locked on the display for 10 seconds after releasing the button.

Chapter Three - Measurement Tips

3.1 Optimizing Target Area Measurements

When performing a continuous thermal scan of a target, or measuring a target located at a distance, proper target alignment will help assure accurate results. Since the OS950's sensor measurement area is fixed at a field of view of 1 to 1, it is important to properly determine the best measuring distance from the target, to optimize the reading. A field of view of 1 to 1 means that the OS950 viewing area is 1" diameter for 1" distance from target. Optimize optical alignment, so that the OS950 views only the target and does not overlap the measurement area. See Figure below for examples of proper optical alignment.

POORPOORGOOD

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Omega OS950 manual Chapter Three Measurement Tips, Scan Mode Temperature Measurements, Optimizing Target Area Measurements