HWL 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 wall-mounted HW model features a low-profile housing with an LCD display for easy visibility. All Deluxe 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

Easy Installation

• Polarity insensitive analog output...flexible systems compatibity...save time in the field, and stock fewer devices

Calibration-free interchangeable NIST traceable HS element

• 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% ±1% at 12-60% RH (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 Coefficient ±0.1% RH/°C above or below 25°C (typical)
• Analog Output 4-20mA mode: 2-wire, polarity insensitive, (clipped and capped); 0-5V/0-10V mode: 3-wire, observe polarity
• Scaling 0-100% RH
• Operating Temperature Range 10° to 35°C (50° to 95°F)
• Input Power*** 4-20mA mode: loop powered 12-30VDC only, 30mA max.; 0-5V/0-10V mode: 12-30VDC/24VAC, 15mA max.
• Temperature Transmitter Output Digital, 4-20mA, (clipped and capped) or 0-5V/0-10V output; accuracy ±0.5°C (±1°F) typical