HWL2XSTA | RH Wall | LCD | 2% | Xmtr | Veris (OBSOLETE)

RH Wall | LCD | 2% | Xmtr

Description

HW Series 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. These sensors are calibrated to NIST standards, with certificates available (see Ordering Information; choose “N” in NIST block). Temperature sensing options are also available. The wall-mounted HW model features a low-profile housing with an optional LCD display for easy visibility. All Deluxe models come with a standard five-year warranty

Features

• Thin-film capacitive sensor element recovers from 100% saturation
• Fully interchangeable element to 1%, 2%, 3%, or 5% accuracy...no calibration
• Replace element in the field...maintain accuracy and minimize downtime
• Polarity insensitive, two-wire 4-20 mA or 3-wire 0-5/0-10 VDC versions...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
• Multi-point digital calibration to NIST standards
• NIST certification available
• Minimizes field calibration downtime

Application

• 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

Specifications

INPUT POWER

4-20 mA Mode Class 2; Loop powered 12-30VDC only, 30mA max. (observe polarity)
0-5V/0-10V Mode* Class 2; 12-30VDC/24VAC, 15mA max. (observe polarity)

HUMIDITY

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% at 20-40% RH in mA output mode; (multipoint calibration, NIST traceable)

±2%, 3%, or 5% models; ±1% at 12-60% RH in voltage output mode; ±1% at 12-60% RH in
mA output mode with temp transmitter

Reset Rate*** 24 hours
Stability ±1%@20°C (68°F) annually, for two years
Operating Humidity Range 0 to 100% RH noncondensing
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, not polarity sensitive (clipped and capped); 0-5V/0-10V mode: 3-wire, observe polarity
Scaling 0-100% RH
Operating Temp Range 10° to 35°C (50° to 95°F)

TEMPERATURE

Temp Transmitter Option Digital, 4-20mA (clipped and capped) or 0-5V/0-10V output; accuracy ±0.5°C (±1°F) typical
Operating Temp Range 10° to 35°C (50° to 95°F and 0° to 50°C (32° to 122°F) (switchable)