Veris HWS Series Installation Manual

Installation Guide
Humidity
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.
No responsibility is assumed by Veris Industries for any consequences arising out of the
use of this material.
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Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris 'V' logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
LCD Wall Mount with Analog Setpoints,
Product Overview
The HWS analog series measures humidity of the air inside a room. Devices are designed for use in hospital rooms,
laboratories, and other spaces that require precise environmental control. The keypad allows control of setpoint
values. The slide switch position determines the output type (amp or volt). To maintain accuracy, keep vents clear
of dust, debris, etc. The HWS is warranted for period of five years.
Product Identification
Accuracy
NIST
HWS
1 = 1% N = NIST (1 & 2% only)
X = No (2, 3, 5% only)
2 = 2%
3 = 3%
5 = 5%
Specifications
RH Accuracy at 25°C from 10-80% RH**
(Multi-point Calibration NIST traceable)
Operating Humidity Range
Temperature Coefficient
Operating Temperature Range
Analog Output Scaling
* The HS sensing element has a 1-year warranty. The element is not a part of the 5-year product warranty.
** Accuracy is specified with 24 VDC supplied power with rising humidity.
*** Reset Rate is the time required to recover to 50% RH after exposure to 90% RH for 24 hours.
One side of the transformer secondary is connected to the signal common, so an isolation transformer or
dedicated power supply may be required.
RTD/Thermistors in wall packages are not compensated for internal heating of the product.
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 specification requirements).
©2014 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com
Other companies' trademarks are hereby acknowledged to belong to their respective owners.
HWS Series
Humidistat Control
Setpoint
A S
= Analog = CE
Input Power 15 to 30VDC/24VAC, 100mA max.
Outputs Switch-selectable amp or volt
If volt is selected, the configuration menu allows selection
between 0-5V or 0-10V
RH Sensor* Digitally profiled thin-film capacitive (32-bit mathematics)
U.S. Patent 5,844,138
±2%, 3%, or 5% models, ±1% at 20-50% RH
Reset Rate***
24 hours
Stability ±1% @ 20°C (68°F) annually, for two years
Hysteresis 1.5% (typical)
Linearity Included in Accuracy spec.
0-100% RH (non-condensing)
± 0.1%RH/°C above or below 25°C (typical)
10° to 35°C (50° to 95°F)
0-100% RH
Calibration Offset Adjustable ±9.9% in 0.1% increments
Setpoint Range
10-80% RH in 1% increments
TM
02141