GS-CMD4-W Carbon Monoxide Sensor (wall mounted)

Description

The GS-CM4-W  Series carbon monoxide detector uses an electrochemical sensor to monitor the carbon monoxide level and outputs a field-selectable 4-20 mA , 0-5 or 0-10 Vdc. The sensing range and output may be scaled to either 100, 150, 300, 400 or 500 ppm via the on-board menu. A front panel LCD is standard to ensure easy setup and operation. It is available in either wall/surface or duct mount configurations. Other standard features include a back light for the LCD, a front panel test switch, status indication and an alarm buzzer. The test function may also be controlled remotely with a digital input signal. The on-board menu allows  local configuration of all device parameters.

Optional features include one or two alarm relays and/or RS-485 network communication configured for either ModBus or BACnet protocol. If required, please select from the Recommendations Tab.

This makes it ideal to use with most Data Acquisition Equipment and Data Loggers, or by using the Modbus output straight into a Monitoring System, such as our Orchestrator software.

Features

• Wall or duct mount models
• Setup/calibration fully menu driven
• Selectable ranges of 0-100, 150, 300, 400 or 500 ppm
• Replaceable Electrochemical sensing element
• Optional on board relays with field adjustable trip point.
• Powered by either an AC or DC source
• Choice of three field adjustable analog output signals
• Easy to calibrate in the field

Specifications

• Sensor Type: Electrochemical Sensor
• Agency Approvals: Sensor is UL Recognized   
  Component for ANSI/UL-2034,  UL-2075, E240671
• Measurement Range: 0-100, 150, 300, 400, or 500 PPM  (Selectable)
• Accuracy: ±5 PPM or 5% of reading  (whichever is greater)
• Accuracy rated: 0˚ to 50˚C (32˚ to 122˚F), 15 to 95% RH
• Life Expectancy: 5-7 years in air
• Typical Coverage Area: 700 m2 (7500 ft2) or 15 m (50 ft) radius
• Operating Conditions: -20˚ to 50˚C (-4˚ to 122˚F),  15 to 95% RH, 0.9 to 1.1 atm
• Sample Method: Diffusion or flow through sample  tube for duct mounted models
• Stability: <5% signal loss/year
• Response Time: <35 seconds for 90% step change
• Power Supply: 24 Vdc ± 20% or 24 Vac ± 10%  (non-isolated half-wave rectified)
• Consumption: 100 mA max. with all options on
• Protection Circuitry: Reverse voltage protected and  output limited
• Output Signal: 4-20 mA (Active), 0-5 or 0-10 Vdc   (Selectable)   
• Output Drive at Capability: 450 ohms max for current output,                   
  10 Kohms min for voltage output
• Output Resolution:10 bit PWM (±0.4 ppm)
• LCD Display: Displays PPM and menu parameters   
  1 PPM resolution, 35 mmW x 15 mm H   
  (1.4” x 0.6”) Alpha-numeric 
  2 line X 8 character with backlight
• Status LED: 2 color (red/green) on front panel
• Test Switch: Performs I/O tests, front panel and  remote connection
• Buzzer Alarm: 85 db @ 10 feet
• Buzzer Trip Point: Programmable 20-500 ppm in  10 ppm increments
• Buzzer Delay: Programmable 0-10 minutes in  1 minute increments 
• Optional Relay Output: One or two Form C contact (N.O. and N.C.) 
  5 amps @ 250 Vac, 5 amps @ 30 Vdc, p.f. = 1
  Relay 1 Trip Point - Programmable 20-500 PPM in 10 PPM increments
  Relay 2 Trip Point - Programmable 20-500 PPM in 10 PPM increments
  Relay Hysteresis - Programmable 10-100 PPM in 5 PPM increments
  Relay Delay - Programmable 0-10  minutes in 1 minute increments
• Wiring Connections: Screw terminal block (14 to 22 AWG)
• External Dimensions: Space, 145 x 101 x 64mm (5.7”w x 4”h x 2.5”d) Duct, 145 x 101 x 240mm, (5.7”w x 4”h x 9.5”d) includes probe
• Enclosure Ratings: Space (4) - ABS - UL94-V - IP65 (NEMA 4X) Duct (5) - ABS - UL94-V - IP65 (NEMA 4X)
• Field Calibration: By applying calibration gas standards
  (Contact us for calibration kit)
• Accessories: Calibration kit, model# CMD-CALKIT-GS 

Technical

GS-CM4 Carbon Monoxide Sensor Datasheet

Applications

• Air Quality Measurement
• Car Park Air Quality / Safety
• Heating system safety.
• Ventillation Control