Product Overview

HEW
INPUT POWER
Voltage Model Class 2; 12 to 24 Vdc or 24 Vac
mA Model Class 2; 12 to 24 Vdc
AC Voltage Tolerance ±10%
AC Frequency 50/60 Hz
Max. Inrush Current after 1 msec (mA
version)
25 mA
OUTPUT
mA Output 4 to 20mA, 2-wire, not polarity sensitive
mA Max. Loop Resistance
500 Ω at 24 Vdc input voltage; 250 Ω at
12 Vdc input voltage
Voltage Output 0 to 5 V or 0 to 10 V (jumper selectable)
Voltage Min. Load Resistance 5 kΩ
Voltage Min. Sinking Current 0.2 mA
HUMIDITY
RH Element
Digitally proled thin-lm capacitive,
non-removable
Accuracy ±2%, 3%, or 5% (10 to 90% RH, 20 to 30 °C)
Temperature Eect (Outside 20° to 30°C) ≤0.1% RH per °C
Response Time (to 90% change at 20°C) 110 sec
Annual Drift ≤1%
Output Scaling 0 to 100% RH
TEMPERATURE OPTION
Active Output Accuracy ±0.5 °C (±.9 °F)
Active Output Temp Scaling 10 to 35 °C (50 to 95 °F)
Self-Heating Error
(Resistive temperature only)
≤±0.5 °C at 20 to 30 °C (68 to 86 °F);
≤±0.75 °C outside of 20 to 30 °C (68 to 86 °F)
OPERATING ENVIRONMENT
Operating Temperature 0 to 50 °C (32 to 122 °F)
Operating Humidity
0 to 100% RH non-condensing
(Unit will recover from saturation)
HOUSING
Material ABS plastic with UL V-0 5VB Flame Class
Mounting Holes US and European junction box
WARRANTY
Limited Warranty 1 year
2%, 3%, AND 5% ACCURACIES
FEATURES
• Monitor humidity and temperature with a single device...reduces
installation costs
• Semiconductor temperature transmitter, or popular
thermistor/RTD sensors available
• Housing is low-prole...perfect for schools and museums
DESCRIPTION
HEW Standard Series wall mount humidity transmitters oer high
performance in an easy to install housing at an aordable price. The thin-
lm capacitive sensor element provides high accuracy and performance,
great long-term stability, and full recovery from saturation. Temperature
sensing options are also available.
The wall housing was created using sophisticated thermal analysis
techniques for optimum airow. It is ideal for schools and other
applications requiring exceptional durability and a discrete appearance. All
Standard models come with a standard one-year warranty.
APPLICATIONS
• HVAC economizer control
• Managing energy systems
• Facilitating ASHRAE standards for environmental control
IDEAL FOR
BID SPEC
SPECIFICATIONS
EMC Conformance: Low Voltage Directive 2006/95/EC and EMC Directive 2004/108/EC.
Humidity Monitoring |
For more information on how Veris products can help optimize your systems:
Call: Toll-free 800.354.8556 | Intl. +1 503. 598.4564 Email: [e-mail] | [e-mail]
TM
Standard Wall Humidity Sensors
HEW Series
HQ0001720.F 0116