Humidity

A/RH2 Series



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A/RH2 Series

ACI 2% Wall, Duct and OSA Humidity Transmitters A/RH2 Series

ACI 2% Wall, Duct and OSA Humidity Transmitters

 

The ACI A/RH2 Series Relative Humidity Transmitters utilize a capacitive humidity sensor element to deliver a proportional 4 to 20 mA, 0 to 5 volt DC, or 0 to 10 volt DC output. Each relative humidity transmitter can monitor room and duct humidity as well as outside moisture. The transmitters are compatible with stainless steel wall plate applications and are designed for use in Building Automation Systems, BAS, and HVAC applications. The A/RH2 Series has on board DIP switches. These allow the user to select the desired output signal and can be powered by AC or DC power sources. Each A/RH2 Series humidity transmitter is calibrated using a NIST Traceable Temperature/Humidity Chamber. Three and five point NIST calibration certificates are available.


Products
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QtyModelDescriptionIn StockList PriceInternet Price
A/RH2-100-D 2% DUCT RH XMTR W/TEMP SENSOR 100 OHM RTDINFO372.60208.65
A/RH2-100-O 2% OUTSIDE AIR RH XMTR W/TEMP SENSOR 100 OHM RTDINFO381.94213.89
A/RH2-100-R 2% WALL MOUNT RH XMTR W/TEMP SENSOR 100 OHM RTDINFO360.78202.04
A/RH2-100KS-D 2% DUCT RH XMTR W/TEMP SENSOR 100K OHM THMSINFO357.00199.92
A/RH2-100KS-O 2% OUTSIDE AIR RH XMTR W/TEMP SENSOR 100K OHM THMSINFO369.00206.64
A/RH2-100KS-R 2% WALL RH XMTR W/TEMP SENSOR 100K OHM THMSINFO351.00196.56
A/RH2-100KS-RO 2% WALL RH XMTR W/TEMP 100K OHM THMS OVRINFO372.00208.32
A/RH2-1K-2W-R2 2% WALL RH XMTR W/TMP SNSR 1K OHM RTD 0/10V 385INFO337.00188.72
A/RH2-1K-D 2% DUCT RH XMTR W/TEMP SENSOR 1K OHM RTD 383In Stock357.00199.92
A/RH2-1K-O 2% OUTSIDE AIR RH XMTR W/TEMP SNSR 1K OHM RTD 383In Stock327.42183.36
A/RH2-1K-R 2% WALL MOUNT RH XMTR W/TEMP SENSOR 1K OHM RTD 383INFO350.88196.49
A/RH2-1K-RO 2% WALL MOUNT RH XMTR W/TEMP 1K OHM RTD 383 OPVRINFO371.88208.25
A/RH2-20K-D 2% DUCT RH XMTR W/TEMP SENSOR 20K OHM THMSINFO357.00199.92
A/RH2-20K-O 2% OUTSIDE AIR RH XMTR W/TEMP SNSR 20K OHM THMSIn Stock328.00183.68
A/RH2-20K-R 2% WALL MOUNT RH XMTR W/TEMP SENSOR 20K OHM THMSINFO351.00196.56
A/RH2-20K-R2 2% WALL RH XMTR W/TMP SNSR 20K OHM THMS 0/10VINFO357.00199.92
A/RH2-20K-RO 2% WALL MOUNT RH XMTR W/TEMP 20K OHM THMS OVRINFO371.88208.25
A/RH2-20K-SP 2% WALL PLATE RH XMTR W/TEMP SENSOR 20K OHM THMSINFO452.88253.61
A/RH2-AN-D 2% DUCT RH XMTR W/TEMP SENSOR 10K OHM 3 THMSIn Stock357.00199.92
A/RH2-AN-O 2% OUTSIDE AIR RH XMTR W/TEMP SNSR 10K OHM 3 THMSINFO328.00183.68
A/RH2-AN-R 2% WALL MOUNT RH XMTR W/TEMP SENSOR 10K OHM 3 THMSINFO351.00196.56
A/RH2-AN-RO 2% WALL MOUNT RH XMTR W/TEMP 10K OHM 3 THMS OVRINFO364.00203.84
A/RH2-CP-D 2% DUCT RH XMTR W/TEMP SENSOR 10K OHM 2 THMSIn Stock357.00199.92
A/RH2-CP-O 2% OUTSIDE AIR RH XMTR W/TEMP SNSR 10K OHM 2 THMSIn Stock328.00183.68
A/RH2-CP-R 2% WALL MOUNT RH XMTR W/TEMP SENSOR 10K OHM 2 THMSIn Stock351.00196.56
A/RH2-CP-R2 2% WALL RH XMTR W/TMP SNSR 10K OHM 2 THMS 0/10VINFO360.20201.71
A/RH2-CP-RO 2% WALL MOUNT RH XMTR W/TEMP 10K OHM 2 THMS OVRINFO364.00203.84
A/RH2-D 2% DUCT RH XMTRIn Stock346.00193.76
A/RH2-D-10 2% DUCT HUMIDITY SENSOR 0-10VDC OUTPUTINFO444.47248.90
A/RH2-D-3PTNIST 2% DUCT HUMIDITY SENSOR 3 POINT NISTINFO429.42240.48
A/RH2-D-5 2% DUCT HUMIDITY SENSOR 0-5VDC OUTPUTINFO367.20205.63
A/RH2-D-5PTNIST 2% DUCT HUMIDITY SENSOR 5 POINT NISTINFO486.54272.46
A/RH2-O 2% OUTSIDE AIR RH XMTRIn Stock315.00176.40
A/RH2-O-BB 2% OSA RH XMTR 0-5, 0-10VDC AND 4-20MA NEMA 3R ENCLIn Stock360.00201.60
A/RH2-R 2% WALL MOUNT RH XMTRIn Stock340.00190.40
A/RH23KO 2% OSA RH XMTR W/TMP 3K THMSINFO328.00183.68
A/RH23KR 2% WALL RH XMTR W/TMP 3K THMSINFO351.00196.56
A/RH23KR2 2% WALL RH XMTR W/TMP 3K THMSINFO351.00196.56
A/RH2D10 2% DUCT RH XMTR 0/10VINFO367.78205.96
A/RH2D5 2% DUCT RH XMTR 0/5VINFO355.47199.06
A/RH2R10 2% WALL RH XMTR 0/10VINFO334.95187.57
A/RH2R2 2% WALL RH XMTR 4/20 MAIn Stock305.00170.80
A/RH2-R-LCDR 2%SPACE DSPLYIn Stock452.56253.43

Accessories

No accessories found
Features
  • Popular room housing
  • Five-year warranty
  • Duct and OSA twist-off NEMA 4 housing
  • 24 VDC or 24 VAC power
  • Field selectable current or voltage outputs
  • Single point field calibration
  • Optional temperature sensor
Specifications

Accuracy: ±2% @ 77°F (25°C) from 10% to 95%

Stability:±2% RH/5 years

Supply Voltage:12-40 VDC or 18-28 VAC

Signal Output:4-20 mA @ 300Ω, 0-5/10 VDC @ 4kΩ min, (field selectable) except SP 0-5/10 VDC only

Measurement Range:0% to 100%

Sensing Technology:Capacitive

Operating Temperature:

Room:32° to 122°F (0° to 50°C)

Duct/OSA:-40° to 140°F (-40° to 60°C)

Enclosure:

Room:Plastic Delta-style

Duct/OSA:Plastic weatherproof

Dimensions:

Room:3.8"H x 2.8"W x 0.9"D (9.8 x 7 x 2.3 cm)

Duct:3.6" (9 cm) Ø head with 8.15"L (20 cm) probe 0.75" (1.9 cm) Ø

OSA:3.6" (9 cm) Ø head with 3.0"L (7.6 cm) probe 1.4" (3.6 cm) Ø

Weight:

Room: 0.22 lb (0.1 Kg)

Duct :1.2 lb (0.54 Kg)

OSA: 0.6 lb (0.27 Kg)

SP :0.2 lb (0.09 Kg)

Approvals: CE, RoHS

Warranty: 5 years

Certifications