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EnvironmEntal SEnSorS
TM
HED SEriES
inStallation GUiDE
HED SEriES
Economy Duct Mounted Humidity Sensor
RoHS
Compliant
NOTICE
• This product is not intended for life or safety applications.
• Do not install this product in hazardous or classified locations.
• Read and understand the instructions before installing
this product.
• Turn off all power supplying equipment before working on it.
• The installer is responsible for conformance to all applicable codes.
Product IdentIfIcatIon
Accuracy Output Temp.
HED
OR
2 = 2%
3 = 3%
5 = 5%
M = 4-20mA
V = 0-5V/0-10V
S
= Standard T = Temp
X = No Temp
(Stop here)
Installer’s Specifications
Input Power:
Input Power, Voltage Version
Input Power, mA Version
AC Voltage Tolerance
AC Frequency
Max. Inrush Current After 1 msec (mA version)
Output Power:
mA Output
12-24 VDC or 24 VAC
12-24 VDC
±10%
50-60 Hz
25 mA
mA Max. Loop Resistance
Voltage Output
Voltage Min. Load Resistance
Voltage Min. Sinking Current
4-20 mA, 2-wire, polarity insensitive
500 Ω at 24 VDC input voltage; 250 Ω at 12 VDC input voltage
0-5 V or 0-10 V (jumper selectable)
5 kΩ
0.2 mA
Humidity:
HS Element
Accuracy
Temperature Effect (Outside 20° to 30°C)
Digitally profiled thin-film capacitive, non-removable
±2%, 3% or 5% (10-90% RH, 20° to 30°C)
Response Time (to 90% change at 20°C)
Output Scaling
Temperature:
Active Output Accuracy
Active Output Temperature Scaling
Resistive Temperature Accuracy
≤0.1% RH per °C
110 sec
Annual Drift ≤1%
0-100% RH
±0.5°C
Type 1: -40° to 50°C (-40° to 122°F)
Type see thermistor table
≤±0.5°C at 20° to 30°C; outside of 20° to 30°C
Self-Heating Error (Resistive temperature only)
≤±0.75°C
Operating Environment:
Operating Temperature
Operating Humidity
Housing:
Material
-40° to 50°C
0-100% RH (non-condensing) (Unit will recover from saturation)
ABS plastic with UL V-0, 5VA Flame Class
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.
1-year limited warranty.
Sensor Type
A
= Temp. transmitter
Temp Range Temp Cert
Sensor Type
1 = -40° to 50°C (-40° to 122°F)
2 = 0° to 50°C (32° to 122°F)
Blank = None
1 = 1 pt cal
2 = 2 pt cal
Temp Cert quIck Install
Observe precautions for handling static sensitive devices to avoid damage to the circuitry that is not covered under the factory warranty.
B = 100R Platinum, RTD
C = 1k Platinum, RTD
D = 10k T2, Thermistor
E = 2.2k, Thermistor
F = 3k, Thermistor
G = 10k CPC Thermistor
H = 10k T3, Thermistor
J = 10k Dale, Thermistor
K = 10k with 11k shunt, Thermistor
M = 20k NTC, Thermistor
N = 1800 ohm TAC, Thermistor
R = 10k US, Thermistor
S = 10k 3A 221 Thermistor
T = 100k, Thermistor
U = 20k “D”, Thermistor
W = 10k T2 high accuracy, Thermistor
Y = 10k T3 high accuracy, Thermistor
Z = 10k E1, Thermistor
Blank = None
1 = 1 pt cal
2 = 2 pt cal
1. Choose a location on the air duct.
2. Drill a 1” (25 mm) diameter hole for the sensor probe.
3. Mount HED housing to duct using self-tapping screws (included).
4. Wire unit (see Wiring section).
Z205848-0C PAGE 1 ©2012 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected] 07122
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
HED SEriES
TM
oPeratIon
The HED series economy duct mount humidity sensors measure the levels of RH and temperature (if equipped) in the air inside a duct. HEDs are warranted to meet accuracy specifications for 1 year. To maintain accurate functionality, keep all pickup vents clear and free of dust, debris, etc.
dImensIons
3.2"
(82 mm)
4.9"
(123 mm)
2.1"
(53 mm)
Mounting Holes
6.1"
(155 mm)
1.0"
(25 mm)
inStallation GUiDE
InstallatIon
Observe precautions for handling static sensitive devices to avoid damage to the circuitry that is not covered under the factory warranty.
1. Choose a location to mount the sensor.
2. Drill a 1” (25 mm) diameter hole in the duct.
3. Insert probe into hole. Mount HED housing to duct using self-tapping screws
(included). Make sure that the gasket on the back of the housing is compressed between the housing and the duct for a secure fit.
4. Remove faceplate. Wire unit.
0–5V/0–10V Versions, No Thermistor
Digital Control
Temp In
RH In
Power Source
AC/DC
RTD
Temp/RTD
RH
GND
PWR
0.6”
(15 mm)
0.6”
(15 mm)
+
4-20mA Versions, No Thermistor
Digital Control
Temp Return
RH Return
T-
T+
RH-
RH+
Power Source
DC
0–5V/0–10V Versions, Thermistor
Digital Control
Thermistor In
Thermistor In
RH In
Power Source
AC/DC
RTD
Temp/RTD
RH
GND
PWR
+ 0.6”
(15 mm)
0.6”
(15 mm)
Digital Control
Thermistor
Thermistor
RH Return
4-20mA Versions, Thermistor
T-
T+
RH-
RH+
Power Source
DC
5. Replace faceplate.
Z205848-0C PAGE 2 ©2012 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected] 07122
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
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