Omega OS137 manual 3Operation, Measuring Temperature

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)

SPOT DIA.* (IN)

0 1 2 4 6 8

7.8" 10.2"

5.5"

3.0"

1.75"

0.65"@0"

D:S = 10:1

SPOT DIA.* (CM)

1.6 cm@0

5.6

9.6

13.6

17.6

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

3