Omega Speaker Systems HX93DA manual Calibration Procedure for HX93AV all styles

HX93A, HX93DA SERIES	14
RH/Temperature Transmitter

14.Calibration Procedure for HX93AV (all styles)

Relative Humidity Adjustment

Recommended equipment:

•Humidity Calibration Kit, OMEGA® Model No.: HX92-CAL

•Handheld Digital Multi-meter, OMEGA® Model No.: HHM29B

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

1.Remove enclosure cover.

2.Connect transmitter as shown in figure below.

3.Apply power to transmitter and allow to warm up for 15 min.

4.Place unit in a 11% RH environment and allow to stabilize for 15 min.

5.Adjust potentiometer “P3” for a output reading of .110 Vdc.

6.Place unit in a 75% RH environment and allow to stabilize for 15 min.

7.Adjust potentiometer “P2” for a output reading of .750 Vdc.

8.Repeat steps 4, 5, 6, and 7 as necessary until proper readings are maintained.

9.Calibration complete.

TB1

SENSOR HEAD

1 2 3

P1 P3

TB2 1 2 3

P2

HHM29

.750 V

10A uAmA COM V

+24V –

PSU-93

HX92-CA CALIBRATION BOTTLE

Figure 8 - HX93AV Calibration Procedure

Relative Humidity Adjustment

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