Install Instructions

H7625A, H7635A, H7626A, H7636A SERIES 2000 HUMIDITY/TEMPERATURE SENSORS

Automation and Control Solutions

Honeywell International Inc.

1985 Douglas Drive North

Golden Valley, MN 55422

customer.honeywell.com

® U.S. Registered Trademark

62-0327—03 S.B. Rev. 11-11

Printed in United States

CALIBRATION

NOTE: This is only a single point calibration. All transmitters

are factory calibrated to meet/exceed published

specifications. Field adjustment should not be neces-

sary.

The dipswitch allows the user to calibrate the sensor through

the software. Setting switch 4 ON will put the transmitter into

setup mode allowing the increment and decrement to work.

Once in setup mode, the output will change to 50% (2.5V for

0-5V, 5V for 0-10V, 12mA for 4-20mA). Each increment or

decrement step will cause the output to change by 0.1V for 0-

5V, 0.2V for 0-10V, and 0.32mA for 4-20mA in setup mode.

This can be used to show the user how far offset the

transmitter is. To see the starting point again set switch 1 ON.

This will show the 50% output again. When the unit is out of

setup mode the output will go back to RH output.

Increment RH Output

This will shift the RH output linearly up in 0.5% steps. Switch 4

must be set to ON first. After switch 4 is on, each time switch 5

is set ON the RH output will increase by 0.5%. The increase

goes into effect each time switch 5 is set to ON.

Decrement RH Output

This will shift the RH output linearly down in 0.5% steps.

Switch 4 must be set to ON first. After switch 4 is on, each

time switch 6 is set ON the RH output will decrease by 0.5%.

The decrease goes into effect each time switch 6 is set to ON.

Reset RH Output

This will reset the RH output back to the original calibration.

Switch 4 must be set to ON first. After switch 4 is on, toggle

switches 5 and 6 ON then OFF. After 5 and 6 are OFF slide

switch 4 OFF.

When all calibration is completed, remember to place the

switches back into the positions that correspond to the output

needed as shown in Figure 3.