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Humidity - Outside Air

  • 2% or 3% accuracy (NIST certification options)
  • 0-5/10V and 4-20mA RH/Temp (thermistors optional)
  • LCD with field calibration menu
  • Field replaceable RH element

Applications

Outdoor humidity and temperature measurement for building control

Description

The HO Series is designed to be mounted on the building exterior to provide outside air RH measurement. The HO Series combines excellent stability with reliable operation in 2% or 3% RH accuracy options. Optional temperature transmitters, RTDs and thermistors add further flexibilty when ordering. The standard LCD, gasketed lid and field replaceable elements make the intitial installation and future service a breeze.

Product     Price   Quantity
HO-2A OUTDOOR RH, 2% ACCURACY   $ 311.74
HO-2B OUTDOOR RH, 2% ACCURACY, WITH TEMPERATURE TRANSMITTER   $ 322.99
HO-2C OUTDOOR RH, 2% ACCURACY, WITH 100PT (385) THERMISTOR   $ 349.24
HO-2D OUTDOOR RH, 2% ACCURACY, WITH 1000PT (385) THERMISTOR   $ 349.24
HO-2E OUTDOOR RH, 2% ACCURACY, WITH 10K TYPE 2 THERMISTOR   $ 334.24
HO-2F OUTDOOR RH, 2% ACCURACY, WITH 10K TYPE 3 THERMISTOR   $ 334.24
HO-2G OUTDOOR RH, 2% ACCURACY, WITH 10K T3 THERMISTOR & 11K SHUNT   $ 334.24
HO-2H OUTDOOR RH, 2% ACCURACY, WITH 3K THERMISTOR   $ 334.24
HO-2I OUTDOOR RH, 2% ACCURACY, WITH 2K2 THERMISTOR   $ 334.24
HO-2J OUTDOOR RH, 2% ACCURACY, WITH 1K8 TAC THERMISTOR   $ 334.24
HO-2K OUTDOOR RH, 2% ACCURACY, WITH 20K NTC THERMISTOR   $ 334.24
HO-2L OUTDOOR RH, 2% ACCURACY, WITH 100K THERMISTOR   $ 334.24
HO-3A OUTDOOR RH, 3% ACCURACY   $ 288.34
HO-3B OUTDOOR RH, 3% ACCURACY, WITH TEMPERATURE TRANSMITTER   $ 325.84
HO-3C OUTDOOR RH, 3% ACCURACY, WITH 100PT (385) THERMISTOR   $ 325.84
HO-3D OUTDOOR RH, 3% ACCURACY, WITH 1000PT (385) THERMISTOR   $ 325.84
HO-3E OUTDOOR RH, 3% ACCURACY, WITH 10K TYPE 2 THERMISTOR   $ 310.84
HO-3F OUTDOOR RH, 3% ACCURACY, WITH 10K TYPE 3 THERMISTOR   $ 310.84
HO-3G OUTDOOR RH, 3% ACCURACY, WITH 10K T3 THERMISTOR & 11K SHUNT   $ 310.84
HO-3H OUTDOOR RH, 3% ACCURACY, WITH 3K THERMISTOR   $ 310.84
HO-3I OUTDOOR RH, 3% ACCURACY, WITH 2K2 THERMISTOR   $ 310.84
HO-3J OUTDOOR RH, 3% ACCURACY, WITH 1K8 TAC THERMISTOR   $ 310.84
HO-3K OUTDOOR RH, 3% ACCURACY, WITH 20K NTC THERMISTOR   $ 310.84
HO-3L OUTDOOR RH, 3% ACCURACY, WITH 100K THERMISTOR   $ 310.84
HSO-2 OUTDOOR RH REPLACEMENT SENSOR, 2% ACCURACY (211-0092-0B)   $ 178.00
HSO-3 OUTDOOR RH REPLACEMENT SENSOR, 3% ACCURACY (211-0092-0B)   $ 143.00

CLICK ON LISTED ITEM FOR SPECIFICATIONS.

List prices shown; trade pricing appears on orderpad for Senva Trade Accounts.
For qualified trade pricing, please contact us at 866-660-8864.
Oregon has no sales tax.

Versatile

  • 2% or 3% RH versions with field replaceable sensor
  • Switch selectable 5V/10V and 4-20mA RH/T transmitter outputs
  • Thermistor outputs for temperature optional

Easy to maintain

  • Field calibration. LCD and push-button menu allows easy adjustment of calibrated RH value as needed to maintain certification.
  • Replace a sensor without disturbing conduit

Superior RH sensing

  • On-board temperature compensation for RH. Eliminates temperature coefficient errors and achieves an excellent measurement accuracy as well as high repeatability and offset stability. 
  • State of the art testing facilities. Multi-point calibration certifcation options. Consult factory.

Quality

  • Industry leading 7-year warranty/ 2-year replaceable element warranty
SPECIFICATIONS
Power Supply 3-wire voltage mode (0-5/10V) 12-30VDC/24VAC(1), 15mA max
2-wire current mode (4-20mA) 12-30VDC, 30mA max
Outputs RH and Temperature 3-wire 0-5/10V(4) or 2-wire 4-20mA
Output scaling RH 0-100% RH
Temperature 32-122°F (0-50oC) or -40-140°F (-50-60oC)
Thermistor/RTD Optional  See ordering table
Media filter    Sintered Stainless Steel
Relative Humidity Accuracy 2% models, +/-2% over 10 to 90%RH range
3% models, +/-3% over 20 to 80%RH range
Resolution 0.05%RH
Hysteresis +/-1%RH
Non-Linearity factory linearized <1%RH
Temperature coefficient fully compensated by on-board temp sensor
Response time (2) 30s
Output update rate 2s
Operating range 0 to 100%RH (non-condensing)
Long term drift <0.5%RH per year
Operating conditions (3) -20° C to 60° C @ RH>90%
-20° C to 80° C @ RH=50%
Temperature Accuracy  2% models, <+/-1° C; 0.5° C typ @ 25° C
3% models, <+/-2° C; 0.5° C typ @ 25° C
Resolution 0.01° C
Repeatability +/-0.1° C
Response time (2) 30s
Output update rate 2s
Operating range -40° C to 120° C
Enclosure Materials ABS/Polycarbonate
Dimensions 4.0"h x 4.4"w x 2.1"d (+2.8" solar shield)
  1. One side of transformer,, secondary is connected to signal common. Dedicated transformer is recommended.
  2. Time for reaching 63% of reading at 25° C and 1 m/s airflow.
  3. Long term exposures to conditions outside normal range at high humidity may temporarily offset the RH reading (+3%RH after 60 hours)
  4. 15-30VDC/24VAC power supply voltage required for 10 volt output.