Omega Speaker Systems HX93DA, HX93A manual Temperature Adjustment

13	HX93A, HX93DA SERIES
	RH/Temperature Transmitter

13.Calibration Procedure for HX93AC (all styles)

Temperature Adjustment

Recommended equipment:

•RTD Simulator OMEGA® Model No.: CL510-1

•Handheld Digital Multi-meter, OMEGA® Model No.: HHM29

•Dc Power Supply, OMEGA® Model No.: PSU-93

1.Remove enclosure cover

2.Connect the power supply and multimeter as shown in the figure below.

3.Disconnect the 2-wire Connector “J4” from the main Board.

4.Connect the RTD simulator to the “J4” header on the main board as shown below.

5.Apply power to transmitter and allow to warm up for 10 min.

6.Set the RTD simulator to the 0ºF position.

7.Adjust potentiometer “P5” on the main board for a output reading of 4.43 mA @ 0°F

8.Set the RTD simulator to the 150ºF position.

9.Adjust potentiometer “P4” for a output reading of 18.46 mA 150°F

10.Repeat steps 6, 7, 8 and 9 as necessary until proper readings are maintained.

11. Calibration complete.

1 2 3	12 3
TB1	TB2

P5

P4

J4

CL-301

SENSOR HEAD

HHM29

18.41 mA

10A uAmA COM V

+24V –

PSU-93

Figure 7 - HX93AC Calibration Procedure

Temperature Adjustment

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