Omega Speaker Systems Calibration Procedure for HX93AC all styles, Recommended equipment

HX93A, HX93DA SERIES	11
RH/Temperature Transmitter

11. Calibration

Your transmitter has been factory calibrated to meet or exceed the specifications outlined in this manual. To maintain original specifications it is generally recommended that your transmitter be re- calibrated on an annual basis depending on operating conditions.

12.Calibration Procedure for HX93AC (all styles)

Relative Humidity Adjustment

Recommended equipment:

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

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

•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 “P1” for a output reading of 5.76 mA

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

7.Adjust potentiometer “P2” for a output reading of 16.0 mA

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

9. Calibration complete.

NOTE:

Do not adjust

P3. This is a

factory	23	1 2
setting.	1	3
TB1	P1 P3	TB2
		P2

HHM29

16.00 mA

SENSOR HEAD

10A uAmA COM V

+ 24V –

PSU-93

HX92-CA

CALIBRATION BOTTLE

Figure 6 - HX93AC Calibration Procedure	7
Relative Humidity Adjustment