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HD Deluxe - Model HO2NVSX -Humidity Transmitters
HD Deluxe humidity transmitters provide an ideal solution for measuring relative humidity in all conditions. All devices are equipped with a thin-film capacitive sensor that is easily replaceable in the field. The duct mounted HD is encased in a die cast metal housing for extra strength. All models come with an extended five-year warranty.
APPLICATIONS
- Managing energy systems
- Controlling HVAC systems for improved comfort and energy savings
- Museums, schools, printing shops, and other locations requiring humidity control
- Facilitating compliance with ASHRAE standards for environmental control and indoor air quality
Sense humidity in harsh environments
- Thin-film polymer capacitive sensor element recovers from 100% saturation
- Replace element in the field...maintain accuracy and minimize downtime
Rugged industrial design
- Sensor element can be serviced without disturbing conduit
- Polarity insensitive analog output...flexible systems compatibity
- HS element is microprocessor profiled with on-board nonvolatile memory
- Minimizes field calibration downtime
- HS Element Digitally profiled thin-film capacitive (32 bit mathematics) U.S. Patent 5,844,138
- Accuracy at 25°C from 10-80% RH* ±1%; multi-point calibration, NIST traceable
- Reset Rate** 24 hours
- Stability ±1% @ 20°C (68°F) annually, for two years
- Operating Humidity Range 0 to 100% RH (non-condensing)
- Hysteresis 1.5% typical
- Linearity Included in accuracy spec.
- Temperature Effect ±0.1% RH/°C above or below 25°C (typical)
- Analog Output 4-20 mA, 2-wire, polarity insensitive, (clipped and capped)
- Scaling 0-100% RH
- Operating Temperature Range -40° to 50°C (-40° to 122°F)
- Input Power*** loop powered 12-30VDC only, 30mA max.
- Temperature Transmitter Output Digital, 4-20mA (clipped and capped) or 0-5V/0-10V output; transmitter accuracy: ±0.5°C (1.0°F) typical
- EMC Conformance – CE Option EN 50081-1, EN 50082-1, EN 61000-4-4, EN 61000-4-5, EN 61000-4-3, ENV 50204, EN 61000-4-6
*Specified accuracy with 24VDC supplied power with rising humidity.**Reset Rate is the time required to recover to 50% RH after exposure to 90% RH for 24 hours.***One side of transformer secondary is connected to signal common, so an Isolation transformer or dedicated power supply may be required.Shielded cabling is required for conformance to EMC standards.