GE
HumiTrac™ XR Transmitter Series
Sensing & Inspection Technologies
Installation Guide
A40254250
,Rev. A (August 2009)
Page 2 of 2
Wiring
Match your transmitter with the corresponding diagrams
(Figure 4 through Figure 9), set the switches and wire
accordingly. (See Figure 3 below for switch and terminal
block locations.) Ensure that all the installation and wiring is
in compliance with all national and local codes.
Note:
All Voltage Outputs are measured with respect to the
POWER SUPPLY / CONTROLLER GROUND.
Wiring for the transmitter should be a shielded, twisted pair,
16-22 AWG. Use only copper conductors. Do not run
transmitter wires and AC power wires together in the same
conduit or wire bundle.
Caution!
Running transmitter wires and AC power wires,
including earth ground, in the same conduit or
wire bundle may cause malfunction due to
electrical noise.
Figure 3: Connector/Switch Locations - Inside Cover
Figure 4: Switch Positions for Voltage Mode
Figure 5: DP/EN/WB and Temp. (Direct Connection) -
Voltage
Figure 6: DP/EN/WB and Temp. (Signal Condition) -
Voltage
Figure 7: Switch Positions for Current Mode
Figure 8: DP/EN/WB and Temp. (Direct Connection) -
Current
Figure 9: DP/EN/WB and Temp. (Signal Condition) -
Current
Wiring (cont.)
Figure 10: Remove/Install the Sensor Tip
J7
10V
SW2
5V
J8
Voltage
Current
SW3
SW1
V
I
V
I
JPR1
3K
10K
SW3
SW1
V
I
V
I
XR 0-5/0-10Vout
Switch Selectable 0-5 Volt or 0-10 Volt Output
I1XR/P+
I2XR/P–
V-XR
GND
V-TMP
J7
10V
SW
2
5V
–GND, 0-5/0-10Vout
+V
J8
TH
TH
I2-TMP
I2XR/P–
I1XR/P+
Thermistor Output*
Voltage
*To provide a connector for Thermistor
Output, divide the 5-pin terminal block into
a 3-pin and a 2-pin terminal block as shown.
XR REPRESENTS
Dew Point - DP
Enthalpy - EN
Wet Bulb - WB
Switch Selectable 0-5 Volt or 0-10 Volt Output
I1XR/P+
I2XR/P–
V-XR
GND
V-TMP
J7
10V
SW
2
5V
+V
Voltage
–V
XR
GND
Temp
XR REPRESENTS
Dew Point - DP
Enthalpy - EN
Wet Bulb - WB
SW3
SW1
V
I
V
I
J8
TH
TH
I2-TMP
I2XR/P–
I1XR/P+
Current*
V in
XR (4-20mA) out
Thermistor Output
*Shipped in 4-20mA output.
XR REPRESENTS
Dew Point - DP
Enthalpy - EN
Wet Bulb - WB
J8
TH
TH
I2-TMP
I2XR/P–
I1XR/P+
Current*
V in
XR RTN
Temp RTN
*Shipped in 4-20mA output.
XR REPRESENTS
Dew Point - DP
Enthalpy - EN
Wet Bulb - WB
CE COMPLIANCE
1.
Ensure that the probe earth ground wire (for Duct and
Outside Air units only), the shield wire and the PCB earth
ground wire are connected to the mounting screw or the
NEAREST (<1.5m) earth ground.
2.
The other end of the shield wire MUST be connected to
the power supply /controller earth ground ONLY.
Table 1: HumiTrac XR Ordering Information
Model
Product Information
Space
(Wall)
Mount
HUMI-DP-XR-S
DEW POINT TRANSMITTER-SPACE MOUNT
HUMI-EN-XR-S
ENTHALPY TRANSMITTER-SPACE MOUNT
HUMI-WB-XR-S
WET BULB TRANSMITTER-SPACE MOUNT
Duct Mount
HUMI-DP-XR-D
DEW POINT TRANSMITTER-DUCT MOUNT
HUMI-EN-XR-D
ENTHALPY TRANSMITTER-DUCT MOUNT
HUMI-WB-XR-D
WET BULB TRANSMITTER-DUCT MOUNT
Air Mount
HUMI-DP-XR-O
DEW POINT TRANSMITTER-OPEN AIR
HUMI-EN-XR-O
ENTHALPY TRANSMITTER-OPEN AIR
HUMI-WB-XR-O
WET BULB TRANSMITTER-OPEN AIR
Hold the sides of
the sensor tip
the sintered filter.
near the base of
Caution: Remove power before replacing the sensor.