Veris HW Datasheet
HW SERIES
Deluxe Wall Humidity Sensors
1% & 2% NIST, or Standard
VERIS INDUSTRIES
2%, 3%, or 5%
DESCRIPTION
HW Deluxe humidity transmitters provide an ideal solution for measuring relative
humidity in all conditions. All devices are equipped with a thin-lm capacitive
sensor that is easily replaceable in the eld. These sensors are calibrated to NIST
standards, with certicates available (see Ordering Information; choose “N” in NIST
block). Temperature sensing options are also available.
The wall-mounted HW model features a low-prole housing with an optional
LCD display for easy visibility. All Deluxe models come with a standard ve-year
warra nty.
APPLICATIONS
● 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
HUMIDITY
HWL
FEATURES
● Thin-lm capacitive sensor element recovers from 100% saturation
● Fully interchangeable element to 1%, 2%, 3%, or 5% accuracy...no calibration
● Replace element in the eld...maintain accuracy and minimize downtime
● Polarity insensitive, two-wire 4-20 mA or 3-wire 0-5/0-10 VDC versions...
exible systems compatibity...save time in the eld and stock fewer devices
● Calibration-free interchangeable NIST traceable HS element
● HS element is microprocessor proled with on-board nonvolatile memory
● Multi-point digital calibration to NIST standards
● NIST certication available
● Minimizes eld calibration downtime
DIMENSIONAL DRAWING
4.8"
(122 mm)
†
3.5"
(89 mm)
1.2"
(30 mm)
SPECIFICATIONS
HS Element Digitally pr oled thin-lm capacitive (32 bit mathematics) U.S. Patent 5,844,138†
Accurac y at 25°C from 10-80% RH* ±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;
±1% at 20- 40% RH in mA output mode; (multi -point calibration, NIST traceable)
Reset Rate** 24 ho urs
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 Coecient ±0.1% RH/ °C above or below 25°C (typical)
Analog Output 4-20mA mode: 2-wire, not po larity sensitive (clipped and capped); 0-5V/0-10V mode: 3-wire, observe polarit y
Scaling 0-100% RH
Operating Temperature Range 10° to 35°C (50° to 95°F)
Input Power*** 4-20 mA mode: loop powered 12-30VDC only, 30mA max.; 0-5V/0-10V mode: 12-30VDC /24VAC, 15mA max.
Optional Temperature Transmitter Output Digital, 4-20mA (clipped and capped) or 0-5V/0-10V output; accuracy ±0.5°C (±1°F) t ypical
10° to 35°C (50° to 95°F and 0° to 50°C (32° to 122°F) (switchable)
† The HS sensing element has a 1-year warranty. The element is not a part of the 5-year product warranty.
* Specied accuracy with 24VDC supplied power with rising humidity. RTD/Thermistors are not compensated for internal heating of product.
** Reset Rate is the time required to recover to 50% RH after exposure to 90% RH for 24 hours.
*** One side of transformer secondary is connected to signal common, so an Isolation transformer or dedicated power supply may be required.
Shielded cabling is required for conformance to EMC standards. Technical information is available from factory upon request or is available on our website: www.veris.com.
EMC Conformance - CE Option: Low Voltage Directive 2006/95/EC and EMC Directive 2004/108/EC.
EMC Special Note: Connect this product to a DC distribution network or an AC/DC power adaptor with proper SURGE PROTECTION (EN 61000-6-1:2007 specication requirements).
800.354.8556
+1 503.598.4564
www.veris.com
HQ0001791.B 01131
800.354.8556
+1 503.598.4564
APPLICATION/WIRING DIAGRAMS
www.veris.com
HW Current Output (2-Wire, 4-20mA)HW Voltage Output (3-Wire, 0-5V/0 -10V)
PWR
COMMON
RH OUT
T OUT
RTD/Thermistor/Override
RTD/Thermistor/Override
Slider Left
Slider Wiper
Slider Right
ORDERING INFORMATION
NIST US or EU Temp. Sensor Typ e Display Accur acy
HW
X
= No
1 = 1%
2 = 2%
3 = 3%
5 = 5%
N = NIST
(1% and 2% only)
X = No
(2%, 3%, and 5% only)
NIST US or EU Temp. Sensor Typ e Display Accur acy
HW
L
1 = 1%
= LCD
2 = 2%
3 = 3%
5 = 5%
N = NIST
(1% and 2% only)
X = No
(2%, 3%, and 5% only)
Examp les:
HW L 2 N C T A
HW L 2 N C T C 2 2 F
HW X 5 X S X
S = Standard
C = CE
S = Standard
C = CE
Stop Here
Stop Here
POWER SOURCE
12-30VDC/24VAC
CONTROL SYSTEM
COMMON
RH INPUT 0-10V
T INPUT 0-10V
RTD/ THERMISTOR/OVERRIDE
SETPOINT SLIDER
Available
T = Temp*
X = No Temp
(Stop here)
T = Temp*
TA = Transmit ter
only
D = Transmitte r
and resis tive
element
X = No Temp
(Stop here)
PWR (4-20 SEND)
RH OUT (4-20 RTN)
A = Transmitte r: 10° - 35°C (50° - 95°F
and 0° - 50°C (32° - 122° F) (switchab le)
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
Q = 1uA/C, Linitemp
R = 10k US, Thermis tor
S = 10k 3A 221
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
None = Sele ct for TA temp option on ly
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
Q = 1uA/C, Linitemp
R = 10k US, Thermis tor
S = 10k 3A 221
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
+
POWER SOURCE
12-30VDC only
-
CONTROL SYSTEM
-
COMMON
RH RETURN
T RETURN
RTD/THERMISTOR/OVERRIDE
SETPOINT SLIDER
RTD/Thermistor/Override
Slider Wiper
T OUT (4-20 RTN)
RTD/Thermistor/Override
Slider Left
Slider Right
Options Available
Temp Cal Cer t
X = No Cert
1 = 1pt Cal
2 = 2pt Cal
Option
1 = Push B utton Overri de
2 = Set Po int Slider
3 = Push B utton Overri de
and Set Poin t Slider
Options Available
Temp Cal Cer t
X = No Cert
1 = 1pt Cal
2 = 2pt Cal
Option
1 = Push B utton Overri de
2 = Set Po int Slider
3 = Push B utton Overri de
and Set Poin t Slider
* In order for unit to display both temp and RH, use the TA or D
temp selection.
Temp displayed on LCD is read from temperature transmitter, not
resistive element. If only the resistive output is selected for temp.
output, LCD will not display temp.
ACCESSORIES
Replacement humidity element (HS)
Replacement covers for wall uni ts (AA51, AA51B, AA52,
AA52B )
Replacement cloud white wall h ousing (AA55)
Value
A = 1k
F = 10k
G = 20k
K = 50k
M =10 0k
Value
A = 1k
F = 10k
G = 20k
K = 50k
M =10 0k
Housing
Blank =
Cloud white
B = Black
HUMIDITY
Housing
Blank =
Cloud white
B = Black
HS
HQ0001791.B 01131
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