Veris-industries CWE SERIES Datasheet Manuel d'utilisateur télécharger pdf

AIR QUALITY

VERIS INDUSTRIES

800.354.8556

+1 503.598.4564

www.veris.com

Standard Duct and Wall

Sensors

Field-Selectable

4-20mA/0-10VDC Output

DESCRIPTION

The CDE and CWE are non-dispersive infrared (NDIR) sensors designed for measuring

environmental CO

concentration in ventilation systems and indoor living spaces.

Their measurement range of 0-2000 ppm makes them compliant with ASHRAE and

other standards for ventilation control

The CWE/CDE Series provides a user-selectable 4-20mA or 0-10VDC output for

versatility. Microprocessor-based digital electronics and a unique self-calibration

algorithm improves long-term stability and accuracy.

APPLICATIONS

● Controlling ventilation in response to occupancy

● Facilitating compliance with ASHRAE 62.1 standard for air quality

● Oce buildings, conference rooms, schools, retail stores, etc.

SPECIFICATIONS

Input Power 20 to 30VDC/24AC; 100mA Maximum

Analog Output 4-20mA (clipped and capped)/0-10VDC (selectable)

Operating Temperature Range 0° to 50°C (32° to 122°F)

Operating Humidity Range 0 to 95% RH noncondensing

Housing Material High impact ABS plastic

Sensor Type Non-dispersive infrared, diusion sampling

Output Range 0-2000 ppm

Accuracy ±30 ppm ±2% of measured value*

Repeatability ±20 ppm ±1% of measured value

Response Time <60 seconds for 90% step change

RTD/Thermistors in wall housings are not compensated for internal heating of product.

EMC Conformance: 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 specication requirements).

* Measured at NTP

Note: Rough handling and transportation may cause a temporary reduction of CO

sensor accuracy. With time, the ABC function will tune the readings back to the correct accuracy range. The default tuning speed is limited

to 30 ppm per week.

Year

Warranty

CWE

CDE

FEATURES

● Microprocessor-based design increases accuracy and reduces installation time

● Non-dispersive infrared technology repeatable to ±20 ppm ±1% of

measured value...high accuracy measurements

● Innovative self-calibration algorithm...easy to maintain

● 5-year calibration interval (recommended)

● Low ambient sensitivity

● Output 4-20mA/0-10V for exible control system interface

● 3-year factory warranty from date of purchase

CDE & CWESERIES

HQ0001740.B 01131

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Page 1 - Sensors

AIR QUALITYVERIS INDUSTRIES800.354.8556+1 503.598.4564www.veris.comStandard Duct and Wall CO2 SensorsField-Selectable 4-20mA/0-10VDC OutputDESCRIPTION

Page 2 - AIR QUALITY

AIR QUALITY800.354.8556+1 503.598.4564www.veris.comPower (+24)CO2 OUTCOMMONN/ARTDRTDOptionalAPPLICATION/WIRING DIAGRAMSDIMENSIONAL DRAWINGSCWE Wall Mo

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