GE HUMI-DP-XR-S, HUMI-DP-XR-D, HUMI-EN-XR-S, HUMI-WB-XR-S, HUMI-EN-XR-D Installation Manual

GE HumiTrac™ XR Transmitter Series

Sensing & Inspection Technologies Installation Guide

A40254250,Rev. A (August 2009)

Page 1 of 2

Warranty

GE Sensing & Inspection Technologies warrants equipment
of its manufacture to the original buyer against defective
materials or workmanship, for a period of one year for the
sensor tip and two years for the rest of the product, from the
date of shipment. The sensor element and calibration are not
covered by this warranty.

Calibration

All GE Sensing & Inspection Technologies RH/Dewpoint
and Temperature Products are fully tested and calibrated in
accordance with the National Institute of Standards and
Technology (NIST) prior to shipment. This is the highest
quality calibration standard available.

Power Requirements

12–30 VDC power supply (furnished by the customer).

Specifications

Contact Information

To contact the factory, use the following information:
GE Sensing & Inspection Technologies

1100 Technology Park Drive
Billerica, MA 01821-4111
Web: www.gesensing.com
Telephone: [phone] or 800-321-4878

HumiTrac Information

For information specific to the HumiTrac, see the website

www.humitrac.com.

Installation

For your convenience, the transmitters can be mounted
using the base as a mounting template (see Figure 1 or 2).

Wall Mount

Locate the transmitter where it will be exposed to an
unrestricted air circulation that is representative of the
average humidity and/or temperature of the controlled
space. Avoid locations where excessive moisture, corrosive
fumes, vibration, or high ambient temperatures are present.

The wall mount transmitter is designed to install onto a
standard electric switch box. Mount the transmitter on an
indoor wall approximately 4 to 6 feet above the floor. The
base assembly should be positioned with the letters FR/ABS
located on the left side.

Figure 1: Wall Mount - Mounting Dimensions

Duct Mount

The transmitter should be mounted away from fans, corners,
heating and cooling coils, and other equipment that will
affect the measurement of relative humidity. It should be
mounted in a location that receives adequate air flow for
proper operation.

The duct mount transmitter should be mounted so that the
sensor probe is in the center of the duct.

Outside Air Mount

The transmitter should be mounted in a sheltered area that is
protected from rain. Ideally, the transmitter should be located
on the north side of the building (under an eave) to prevent
sun-heated air from rising up the building's wall and
affecting the relative humidity of the sensor.

The outside air mount transmitter should be mounted with
the sensor pointing down to prevent water collection in the
sensor cavity.

Figure 2: Duct / Outside Air - Mounting Dimensions

Environmental Conditions

Operating Range: –40°F to 140°F (–40°C to 60°C)

0-99% RH non-condensing.

Storage Temperature: –67°F to +185°F (–55°C to +85°C)

Sensing Element: Capacitive Sensor

Long Term Stability: Less than 1% drift per year, typical.

Temperature Effect:** Delta %RH =

(0.0014 x %RH + 0.1325) x T°C –
(0.0317 x %RH + 3.0876)

**Not needed for Signal-Conditioned Temperature units.

Signal Outputs: 4-20 mA, 0-5V or 0-10V (user selectable)

Space (Wall Mount) Range

Dew Point 40° to 90°F (4.4 to 32.2°C)

Enthalpy 0-50 BTU/lb (0-116.3 kJ/kg)

Wet Bulb 40° to 90°F (4.4 to 32.2°C)

Dry Bulb 40° to 90°F (4.4 to 32.2°C)

Duct/Outside Air Mount Range

Dew Point -20° to 120°F (-28.8° to 49°C)

Enthalpy 0-50 BTU/lb (0-116.3 kJ/kg)

Wet Bulb 0° to 100°F (-17.8° to 37.8°C)

Dry Bulb -20° to 120°F (-28.8° to 49°C)

Accuracy

Dew Point ±1.8°F (±1°C)

Enthalpy ±2 BTU/lb (±4.7 kJ/kg)

Wet Bulb ±3°F (±1.7°C)

Dry Bulb ±0.5°C (±0.9°F)

Certification

CE Marked

Complies with EMC Directive 89/336/EEC and LVD 73/23/EEC.

IP 42 rating for Duct Mount and Outside Air Transmitters.

FR

ABS

2.37 (60.3)

2.37

(60.3)

3.30

(83.8)

3.79 (96.2)

4.69

(119.1)

**

Notes:

1. Dimensions are in inches (millimeters).

2.

*To open the enclosure, squeeze the base

where indicated, and remove the cover.

1.50 (38.1)

1.75

(44.5)

3.79 (96.2)

4.69

(119.1)

*

Ø.188 (4.76)

mounting hole, 4 pl.

Ø.50

(12.7)

Notes:

1. Dimensions are in inches (millimeters).

2. Ensure the Duct Probe doesn't make any
contact with the metal housing.

3.

*To open the enclosure, squeeze the base

where indicated, and remove the cover.

GE HumiTrac™ XR Transmitter Series

Sensing & Inspection Technologies Installation Guide

A40254250,Rev. A (August 2009)

Pa g e 2 o f 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

VI

VI

JPR1

3K

10K

SW3

SW1

VI

VI

XR 0-5/0-10Vout

SwitchSelectable 0-5Volt or0-10 VoltOutput

I1XR/P+

I2XR/P–

V-XR

GND

V-TMP

J7

10V

SW2

5V

–GND, 0-5/0-10Vout

+V

J8

TH

TH

I2-TMP

I2XR/P–

I1XR/P+

Thermistor Output*

Voltage

*To provide a connectorfor Thermistor

Output, divide the 5-pin terminal blockint o

a 3-pin and a2-pi ntermi nalb locka sshow n.

XR REPRESENTS

Dew Point - DP
Enthalpy - EN
Wet Bulb - WB

Switch Selectable0-5Voltor0-10 Volt Output

I1XR/P+

I2XR/P–

V-XR

GND

V-TMP

J7

10V

SW2

5V

+V

Voltage

–V

XR

GND

Temp

XR REPRESENTS

Dew Point - DP
Enthalpy - EN
Wet Bulb - WB

SW3

SW1

VI

VI

J8

TH

TH

I2-TMP

I2XR/P–

I1XR/P+

Current*

Vin

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*

Vin

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 TRANSMIT TER-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 TRANSMIT TER-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.