Install Instructions
H7625A, H7635A, H7626A, H7636A SERIES 2000 HUMIDITY/TEMPERATURE SENSORS
62-0327—03 2
Output Settings
The humidity output signal can be adjusted for 0-5Vdc, 0-10
Vdc or 4-20 mA using the switch block. Switches 6, 7, and 8
are used to set the output.
NOTE: Refer Fig. 2 for switch settings.
Table 1. Controller Compatibility
and Output Settings.
Fig. 2. DIP switch and Wire Connection locations.
REVERSE ACTING OUTPUT
The output can be changed to reverse acting mode. The
output range stays the same but the corresponding RH value
is opposite. Direct Acting is the default mode.
Example: Direct Acting (DA)
0-10V output mode
0V = 0% RH and 10V = 100% RH
Reverse Acting (RA)
0-10V output mode,
0V = 100% and 10V = 0%
To change the transmitter to reverse acting or back to direct
acting, set switch 4 ON to put the unit in setup mode. After
switch 4 is on, switch 2 will put the unit in direct/reverse acting
mode. When switch 2 is set to ON, the output can be used to
show if the unit is in direct or reverse acting mode. For direct
acting the output will be 1V for 0-5V, 2V for 0-10V, and 7.2mA
for 4-20mA. For reverse acting the output will be 4V for 0-5V,
8V for 0-10V, and 16.8mA for 4-20mA.
With switches 2 and 4 ON, each time switch 5 is set to ON the
output will change to reverse acting or direct acting.
To reset the unit to the default setting, toggle both switches 5
and 6 ON then OFF while both switches 2 and 4 are ON.
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.
Controller
Required Sensor Output
Setting
L
ONSPEC™
Setting
W7750, W7760,
W7761
4-20 mA C7600C
W7750B,C
W7760C, W7753,
W7760
0-10 Vdc (default) H7621/31
T7350, XL50,
XL100, XL500 XF
Modules, XFL
0-10 Vdc (default) n/a
Non-Honeywell 0-5 Vdc n/a
1
ON
2345678
WIRE
CONNECTIONS
HUMIDITY
SENSOR
TEMPERATURE
SENSOR
M33151
SW1
TB1
OUTPUT,
CALIBRATION
AND TEST
SWITCHES
4-20mA VIN VOUT +TEMP-COM
P1
S1
P2
S3
S2
ZEROSPAN
FACTORY
USE
ONLY
1
ON
2345678
0-10 VDC OUTPUT
(DEFAULT)
ON
OFF
1
ON
2345678
ON
0-5VDC OUTPUT
OFF
1
ON
2345678
ON
4-20mA OUTPUT
OFF
SW1
SW1
SW1