GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM

ROOM HUMIDITY TRANSMITTER

HRC SERIES

PRODUCT DESCRIPTION

The HRC series room humidity transmitter uses a

highly accurate and field-proven RH sensor in an

attractive low profile enclosure to monitor room

relative humidity levels. Additional options include

an occupancy override button, a slide-pot setpoint

control, a resistive temperature sensor and an LCD

display. The RH output can be field selected as a

linear 4-20 mA or 0-5 / 0-10 Vdc signal.

TYPICAL INSTALLATION

For complete installation and wiring details, please

refer to the product installation instructions.

The HRC series can be mounted directly to a single gang

electrical box or directly to a wall. Multiple mounting holes

are provided for connection to a variety of electrical boxes.

A terminal block connection is provided for connection to

the Building Automation System.

SENSOR

Thermoset polymer based capacitive

ACCURACY

±2, 3 or 5 %RH (5 to 95 %RH)

RANGE

0 to 100 %RH

RESOLUTION

0.01 %RH

HYSTERESIS

±0.8 %RH @ 25

°C (77°F)

RESPONSE TIME

8 seconds typical

STABILITY

<0.25 %RH/year

POWER SUPPLY

24 Vac/dc ±10% typical, 28 Vac/dc maximum

CONSUMPTION

20 mA @ 24 Vdc

SIGNAL

4-20 mA / 0-5 or - 0-10 Vdc (field selectable)

OUTPUT DRIVE @ 24 VDC

Current: 550 Ω maximum

Voltage: 10,000 Ω minimum

OPERATING CONDITIONS

0 to 50°C (32 to 122°F)

ENCLOSURE

White ABS, UL94-v0, IP30 (NEMA 1)

84mm W x 119mm H x 29mm D (3.3” x 4.7” x 1.15”)

WIRING CONNECTIONS

Screw terminal block (14 to 22 AWG)

OPTIONAL TEMPERATURE SENSOR

Various Thermistors and RTDs available as 2 wire resistive output

SETPOINT ADJUSTMENT

Type: Front panel slidepot, 2 wire resistance output

Range: 0K to 10K Ω standard

Custom Spans Available: 1K, 2K, 5K, 10K, or 20K Ω

MANUAL OVERRIDE

Type: Front panel, momentary pushbutton

Ratings: 50 mA @ 12 Vdc, N.O., SPST

LCD DISPLAY

Range: 00.0 to 99.9 %RH, 3 digit

Size: 38.1mm W x 16.5mm H (1.5” x 0.65”)

Digit Height: 11.43mm (0.45”)

Symbols: %RH

COUNTRY OF ORIGIN

Canada

SPECIFICATIONS

84mm

3.3”

58mm

2.3”

82.6mm

3.25”

29mm

1.15”

119mm

4.7”