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

• 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

• 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: 0Ëš to 50ËšC (32Ëš to 122ËšF), 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: -20Ëš to 50ËšC (-4Ëš to 122ËšF),  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 

GS-CM4 Carbon Monoxide Sensor Datasheet

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