CWXPHTX | CO2 | Wall | 2%RH | Temp | Protocol | Veris (OBSOLETE)

CO2 | Wall | 2%RH | Temp | Protocol

Description

CDL/CWL carbon dioxide sensors maximize energy savings, while helping optimize ventilation. These sensors allow ventilation systems to be controlled by the amount of CO2 present in a space. The CWL/CDL Series detect fluctuations in CO2 levels and signal ventilation systems to provide an inlet of fresh air optimal for the space at a given time saving energy and increasing tenant comfort.

Features

• Microprocessor-based design increases accuracy and reduces installation time
• Non-dispersive infrared technology (NDIR) repeatable to ±20 ppm ±1% of measured value...high accuracy measurement
• Innovative self-calibration algorithm easy to maintain
• 5-year calibration interval (recommended)
• Field-selectable outputs for operation flexibility
• Integrated transducer and probe eliminates the need to install a separate pick-up tube
• Snap-on faceplate no screws required, making installation and service easy
• CO2, humidity, and temperature sensing all in one compact device fewer units to buy and install

Application

• Controlling ventilation in response to occupancy
• Facilitating compliance with ASHRAE 62.1 standard for air quality
• Office buildings, conference rooms, schools, retail stores, etc.

Specifications

Input Power Class 2; 20 to 30VDC/24VAC 50/60Hz; 100mA max.
Analog Output 4-20mA (clipped & capped)/0-5VDC/0-10VDC (selectable)
Operating Temp Range
CDL 0° to 50°C (32° to 122°F)
CWL No humidity option: 0° to 50°C (32° to 122°F);
With humidity option: 10° to 35°C (50° to 95°F)
Operating Humidity Range 0 to 95% RH noncondensing
Housing Material High impact ABS plastic
Terminal Block Torque
CDL 0.2N-m (2.0 in-lbf) max.
CWL 0.22N-m (2.0 in-lbf) max.
Terminal Block Wire Size
CDL 28-14 AWG (0.5-1.5mm2)
CWL 30-18 AWG (0.08-0.5mm2)

CO2 TRANSMITTER

Sensor Type Non-dispersive infrared (NDIR), diffusion sampling
Output Range 0-2000/5000 ppm (programmable)
Accuracy ±30 ppm ±2% of measured value*
Repeatability ±20 ppm ±1% of measured value
Response Time <60 seconds for 90% step change

RH TRANSMITTER

HS Sensor Fully replaceable, digitally profiled thin-film capacitive (32-bit mathematics) U.S. Patent 5,844,138
Accuracy ±2% from 10 to 80% RH @ 25°C; NIST traceable multi-point calibration
Hysteresis 1.5% typical
Stability ±1% @ 20°C (68°F) annually for two years
Output Range 0-100% RH
Temperature Coefficient ±0.1% RH/°C above or below 25°C (typical)

TEMPERATURE TRANSMITTER

Sensor Type Solid-state, integrated circuit
Accuracy ±0.5°C (±1°F) typical
Resolution 0.1°C (0.2°F)
Output Range 10° to 35°C (50° to 95°F)

RELAY CONTACTS

1 Form C (SPDT) (on wall models, relay is only available in units without the setpoint slider option)
1A@30VDC, resistive; 30W max.