Veris HED Datasheet
HED SERIES
Standard Duct
VERIS INDUSTRIES
Humidity Sensors
2%, 3%, and 5% Accuracies
DESCRIPTION
HED Standard Series duct 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 duct-mounted HED includes a rugged all plastic housing with a tool-less
gasketed entry lid, large cage clamp terminal blocks, and sturdy ABS material. 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!
HED
FEATURES
● Monitor humidity and temperature with a single device...reduce installation
costs
● Semiconductor, temperature transmitter, or popular thermistor/RTD
sensors available
● Tool-less gasketed entry lid...no more lost screws
● Large cage clamp terminal blocks...easy hoop-up with no wire nuts
● Circuitry is embedded in the probe for durability and protection
HUMIDITY
Yea r
1
SPECIFICATIONS
Input Power:
Input Power, Voltage Version 12-24VD C or 24VAC
Input Power, mA Version 12-24V DC
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 selectable)
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 Effec t (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 0-10 0% R H
Temperature:
Active Output Accuracy ±0.5°C
Active Output Temperature Scaling Type 1: -40° to 50°C (-40° to 122°F); Type 2: 0° to 50°C (32° to 122°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 -40° to 50°C (-40° to 122°F)
Operating Humidity 0-100% RH noncondensing (Unit will recover from saturation)
Housing:
Material ABS plastic with UL V-0 5VA Flame Class
Warranty
EMC Conformance: EN61000-6-3:2007+A1:2011 Class B; EN61326-1:2006 Class B; EN61000-6-1:2007
Meets UL requirements for plenum rating.
800.354.8556
+1 503.598.4564
www.veris.com
HQ0001719.E 01131
800.354.8556
+1 503.598.4564
APPLICATION/WIRING DIAGRAMS
0–5V/0–10V Models, No Thermistor
Digital Control
Temp In
RH In
Power Source
AC/DC
RTD
Temp/RTD
RH
GND
PWR
www.veris.com
Digital Control
Power Source
Thermistor In
Thermistor In
RH In
AC/DC
0–5V/0–10V Models, 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)
3.2"
(82 mm)
ORDERING INFORMATION
2.1"
(53 mm)
TT+
RHRH+
RoHS
Compliant
6.1"
(155 mm)
Digital Control
Thermistor
Thermistor
RH Return
Power Source
DC
Sensor Type
= Temp. transmitter
4-20mA Models, Thermistor
1.0"
(25 mm)
A
Temp Range
1 = -40° to 50 °C (-40° to 122°F)
2 = 0° to 50°C (32° to 122°F )
TT+
RHRH+
HUMIDITY
Temp Cert
Blank = None
1 = 1 pt cal
2 = 2 pt cal
Output US or EU Temp. Accuracy
HED
2 = 2%
3 = 3%
5 = 5%
M = 4 -20mA
V = 0-5VDC/0-10VDC
Exam ple:
With Temp
HED 3 M S T C
Without Temp
HED 3 V S X
HQ0001719.E 01131
S
= Standard
Stop Here
T = Temp
X = No Temp
(Stop here)
Sensor Type
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
Temp Cert
Blank = None
1 = 1 pt cal
2 = 2 pt cal
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