Veris HEW Datasheet
HEW SERIES
Standard Wall
VERIS INDUSTRIES
Humidity Sensors
2%, 3%, and 5% Accuracies
DESCRIPTION
HEW Standard Series wall mount humidity transmitters oer high performance in an
easy to install housing at an aordable 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 airow. 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!
HEW
FEATURES
● Monitor humidity and temperature with a single device...reduces installation
costs
● Semiconductor, temperature transmitter, or popular thermistor/RTD
sensors available
● Housing is low-prole...perfect for schools and museums
HUMIDITY
SPECIFICATIONS
Input Power:
Input Power, Voltage Version 12-24VD C or 24VAC
Input Power, mA Version 12-24VDC
AC Voltage Tolerance ±10%
AC Frequency 50-60 Hz
Max. Inrush Current after 1 msec (mA version) 25mA
Output Power:
mA Output 4-20mA, 2-wire, not polar ity sensitive
mA Max. Loop Resistance 500Ω at 24VDC input volt age; 250Ω at 12VDC input voltage
Voltage Output 0-5V or 0-10V ( jumper selec table)
Voltage Min. Load Resistance 5kΩ
Voltage Min. Sinking Current 0.2mA
Humidity:
RH Element Digitally proled thin-lm capacitive, non-removable
Accurac y ±2%, 3%, or 5% (10-90% RH, 20° to 30°C )
Temperature Effect (Outside 20° to 30°C) ≤0.1% RH per °C
Response Time (to 90% chang e at 20°C) 110 sec
Annual Drift ≤1%
Output Scaling 0-100% RH
Temperature:
Active Output Accuracy ±0.5°C
Active Output Temperature 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 0-100% RH noncondensing (Unit will recover from saturation)
Housing:
Material ABS plastic with UL V-0 5VB Flame Class
Mounting Holes US and European junction box
Yea r
1
Warranty
EMC Conformance: EN61000-6-3:2007+A1:2011 Class B; EN61326-1:2006 Class B; EN61000-6-1:2007
800.354.8556
+1 503.598.4564
www.veris.com
HQ0001720.C 01131
800.354.8556
+1 503.598.4564
APPLICATION/WIRING DIAGRAMS
Digital Control
Temp In
RH In
Power Source
AC/DC
RTD
Temp/RTD
RH
GND
PWR
www.veris.com
Digital Control
Thermistor In
Thermistor In
RH In
Power Source
AC/DC
0–5V/0–10V Models, Thermistor0–5V/0–10V Models, No Thermistor
RTD
Temp/RTD
RH
GND
PWR
4-20mA Models, No Thermistor
Digital Control
Temp Return
RH Return
Power Source
DC
DIMENSIONAL DRAWING
4.9"
(123 mm)
1.3"
(34 mm)
TT+
RHRH+
Digital Control
Thermistor
Thermistor
RH Return
Power Source
DC
4-20mA Models, Thermistor
TT+
RHRH+
HUMIDITY
3.2"
(82 mm)
ORDERING INFORMATION
Accuracy
Output
HEW
2 = 2%
3 = 3%
5 = 5%
M = 4 -20mA
V = 0-5VDC/0-10VDC
Exam ple:
With Temp
HEW 3 M S T C
Without Temp
HEW 3 V S X
US or EU
S
= Standard
Stop Here
S
Temp.
T = Temp
X = No Temp
(Stop here)
RoHS
Compliant
Sensor Type
A = Temp. Transmitter
B = 100R Platinu m, RTD
C = 1k Platinum, RTD
D = 10k T2, Therm istor
E = 2.2k, Ther mistor
F = 3k, Therm istor
G = 10k CPC Ther mistor
H = 10k T3, Thermi stor
J = 10k Dale, Ther mistor
K = 10k with 11k shunt, Ther mistor
M = 20k NTC, Ther mistor
N = 1800 ohm TAC, Therm istor
R = 10k US, Thermis tor
S = 10k 3A 221 Thermis tor
T = 100k, The rmistor
U = 20k “D”, Thermis tor
W = 10k T2 high acc uracy, Thermist or
Y = 10k T3 high acc uracy, Thermist or
Z = 10k E1, Thermisto r
HQ0001720.C 01131
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