3Operation

SECTION 3 – OPERATION

3.1 – Measuring Temperature

Before starting to measure temperature, make sure the following check list is met:

The power and output connections are made (Fig 2-1).

The target is larger than the optical field of view of the transmitter (Fig 3-1).

Use the Laser Sighting accessory (optional), to align the transmitter to the center of the target area.

Remove the End Cap to get to the Emissivity Single Turn Pot (Fig. 3-2). Set the Emissivity Pot based on the target surface. Then put back the End Cap.

Make sure the output load is within the product specification.

 

 

 

DISTANCE: SENSOR TO OBJECT (FT)

 

* (IN)

0

1

2

4

 

6

8

 

 

 

 

 

7.8"

10.2"

DIA.

 

 

 

5.5"

 

 

 

SPOT

 

1.75"

3.0"

 

 

 

 

0.65"@0"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D:S = 10:1

 

 

*(CM)

1.6 cm@0

 

 

 

 

 

 

5.6

 

 

 

 

 

 

 

9.6

 

 

 

 

DIA.

 

 

13.6

 

 

 

 

 

 

17.6

 

 

 

 

 

 

 

 

SPOT

 

 

 

 

 

 

 

 

 

 

 

21.6

26

0

40

80

210

160

200

244

 

 

 

DISTANCE: SENSOR TO OBJECT (CM)

 

 

* SPOT DIAMETER MEASURED AT 90% ENERGY

 

 

Figure 3-1. Optical Field of View

END CAP

0.70 0.80

EMISSIVITY

ADJUST

0.60 0.90

0.50 1.00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

 

 

 

 

 

 

ALARM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

 

 

1- REAL TIME

 

 

ALARM

REMOVE THE SCREW TO PULL OUT

2- ALARM POSITION

 

 

ADJUST

 

 

THE END CAP. THE EMISSIVITY AND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM ADJUST & ALARM SWITCH ARE

 

 

 

 

 

 

 

LOCATED ON THE MAIN PC BOARD.

Figure 3-2. Location of Emissivity & Alarm Adjust and Alarm Switch

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Omega Engineering OS137 manual Operation, Measuring Temperature