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Carbon Dioxide Sensor Model IR-700-CO₂
Brand: Detcon IncModel IR-700-CO₂ is a non-intrusive “Smart” sensor designed to detect and monitor carbon dioxide gas in air using miniature non-dispersive Infrared Optical (NDIR) sensor technology.
Available in a low and a high range version, ranges of detection (by volume) are 0-0.3%, 0-1%, 0-3%, 0-5% (low range version) and 0-10%, 0-25%, 0-50%, and 0-100% (high range version).
The plug-in, field replaceable detector provides a selective response to CO₂ and features over-sized gold-plated connections that help prevent corrosion.
The Model 700’s rugged framework includes an electro-polished 316 stainless steel housing with fully encapsulated electronics and dual layer surge protection.
This innovative design virtually eliminates sensor failure due to water ingress, corrosion, vibration, and transient spikes.
A primary feature of the Model IR-700-CO₂ is embedded intuitive software that simplifies operator interface by guiding the user through routine calibration, configuration, and fault diagnostic functions using a built-in alpha/numeric display.
The Model IR700-CO₂ is equipped with standard analog 4-20 mA, and Modbus™ RS-485 outputs.
Additional integration options include a Remote Alarm Module (RAM) & HART. Detcon’s carbon dioxide gas sensor has an infinite shelf life and is supported by a 5-year pro-rated warranty.
Features- Failsafe User-Friendly Interface
- LED Display (With Antiglare Cover)
- Full Text Display Method
- Non-intrusive Interface
- Auto Zero/Auto Span
- Pre-emptive Fault Diagnostics Environmentally Resistant
- Electropolished 316SS Construction
- 100% Epoxy Encapsulated Circuitry
- I/O Protection
- Water-Resistant, Corrosion-Resistant Vibration-Resistant Modular and Serviceable
- Modular Design
- Plug and Play Components
- Quick Thread Release (For Sensor Replacement)
- Integral Calibration Port
Specifications
Brand
Sensor Type
- Continuous Diffusion/Adsorption
- Non-dispersive Infrared Optical (NDIR) - CO₂
- Sub-miniature plug-in field replaceable
Sensor Life
- 5 years typical
Measurement Range (% by volume)
- 0-0.3, 0-0.5, 0-1, 0-3, 0-5 (low range version)
- 0-10, 0-15, 0-20, 0-25, 0-50, 0-100 (high range version)
Accuracy/Repeatability
- ±5% of range
Response Time
- T50 < 15 seconds, T90 < 40 seconds
Outputs
- Linear 4-20 mA DC
- RS-485 MODBUS-RTU
Electrical Classification
- Explosion proof
- cCSAus
- Class I, Division 1, Groups B, C, D (Tamb = -40°C to +75°C)
- Class I, Zone 1, Group IIB+H2
- ATEX II 2 G Ex d IIB + H2 T4 Gb (Tamb = -40°C to +70°C)
Ingress Protection
- NEMA 4X, IP66
Safety Approvals
- cCSAus
- ATEX
- CE Marking
Warranty
- Plug-in detector - 5 year pro-rated
- Transmitter - 2 Years
Operating Temperature Range
- -40°F to +167°F; -40°C to +75°C
Storage Temperature Range
- -40°F to +167°F; -40°C to +75°C
Operating Humidity Range
- 0-100% RH non-condensing
Dimensions
- 7”H x 2.2” Diameter; 178 mm H x 65 mm Diameter (Sensor Assembly only)
- 11”H x 6.1”W x 3.75”D; 280 mm H x 155 mm W x 96 mm D (with junction box)
- Mounting holes (J-box) 5.5”; 140mm center to center
Weight
- 2 lbs; 0.907 kg (sensor only)
- 6 lbs; 2.72 kg (with Aluminum J-Box)
- 9 lbs; 4.08kg (with Stainless Steel J-Box)
Power Input
- 11-30 VDC
Power Consumption
- Normal operation = 68mA (<1.7 watt)
- Maximum = 85mA (2 watts)
Inrush Current
- 0.67A @ 24V
RFI/EMI Protection
- Complies with EN50270
Analog Output
- Linear 4-20 mA DC (1,000 ohms max loop load @ 24VDC)
- 0 mA All Fault Diagnostics
- 2 mA In-Calibration
- 4-20 mA 0-100% full-scale
- 22 mA Over-range condition
Serial RS-485 Output
- RS-485 Modbus™ RTU
Baud Rate
- 9600 BPS (9600,N,8,1 Half Duplex)
Status Indicators
- 4-digit LED display with gas concentration
- Full-script menu prompts for AutoSpan,
- Set-up Options, and Fault Reporting
Faults Monitored
- Loop, Input Voltage, Zero, Sensor, Processor, Memory, Calibration
Cable Requirements
- Power/Analog 3-wire shielded cable Maximum distance is 13,300 feet with 14 AWG
- Serial Output 2-wire twisted-pair shielded cable specifically for use with RS-485 installations Maximum distance is 4,000 feet to last sensor
I/O Protection
- Over-voltage, Miswiring, EMI/RFI Immunity
- Chemicals
- Pesticides
- Agriculture & Horticulture
- Food & Beverage Bottling Plants
- Sewer Entry
- Waste Water Treatment Plants
- Coal Gasification
- Pulp & Paper Mills
- Enhanced Oil Recovery