The Teledyne DM-700-O2 is a non-intrusive “Smart” sensor designed to detect and monitor Oxygen in air over the range of 0-25% by volume using electrochemical sensor technology. The plug-in, field-replaceable sensor cell is temperature-compensated and features oversized gold-plated connections that help prevent corrosion. The Model 700’s rugged framework includes an intrinsically safe 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 700 is embedded intuitive software that simplifies the operator interface by guiding the user through routine calibration, configuration, and fault diagnostic functions using a built-in alpha/numeric display. The Model 700 is equipped with standard analog 4-20mA, and Modbus™ RS-485 outputs. Among its unique features is a wireless option that can be used with Detcon’s SmartWireless® product line. Additional integration options include a Remote Alarm Module (RAM), and HART. Detcon’s oxygen sensors have a long shelf life and are supported by an industry-leading warranty
Failsafe User-Friendly Interface
Environmentally Bulletproof
Modular and Serviceable
| Heading | Detail |
|---|---|
| Sensor Type | Continuous diffusion/adsorption, 2-electrode electrochemical cell, Plug-in field replaceable Intelligent Type |
| Sensor Life | 2 1/2 to 3 years typical |
| Measurement Range | 0-25% Oxygen by volume |
| Accuracy/Repeatability | ±1% FS |
| Response/Clearing Time | T90 ≤ 10 seconds |
| Span Drift | <5% of signal per year (in first two years) |
| Outputs | Linear 4-20 mA DC, RS-485 MODBUS-RTU |
| Electrical Classification | Explosion proof, CSA and US (NRTL), Class I, Division 1, Groups B, C, D (Tamb = -40°C to +50°C), Class I, Zone 1, Group IIC, ATEX, II 2 G Ex d ib IIB + H2 T4 Gb (Tamb = -40°C to +50°C) |
| Ingress Protection | NEMA 4X, IP66 |
| Safety Approvals | cCSAus, ATEX, CE Marking, SIL2 Certified to IEC 61508 |
| Warranty | Plug-in Cell - 2 years; Transmitter - 2 Years |
| Environmental Specifications | Operating Temperature Range: -40°F to +122°F; -40°C to +50°C, Storage Temperature Range: -40°F to +122°F; -40°C to +50°C, Operating Humidity Range: 0-99% RH non-condensing, Operating Pressure Range: Atmospheric ±10% |
| Mechanical Specifications | Dimensions: 7”H x 2.2” Dia.; 178mmH x 65mm Dia. (sensor assembly only), 11”H x 6.1”W x 3.75”D; 280mmH x 155mmW x 96mmD (with junction box), Mounting holes (J-box) 5.5”; 140mm center to center, Weight: 2 lbs; 0.907kg (sensor only), 6 lbs; 2.72kg (w/ aluminum j-box), 9 lbs; 4.08kg (w/stainless steel j-box) |
| Electrical Specifications | Power Input: 11-30 VDC, Power Consumption: Normal operation = 30mA (<0.75 watt), Maximum = 50mA (1.2 watts), Inrush Current: 1.67A @ 24V, RFI/EMI Protection: Complies with EN50270, Analog Output: Linear 4-20mA DC (1,000 ohms max loop load at 24VDC), 0mA All Fault Diagnostics, 2mA In-Calibration, 4-20mA 0-100% full-scale, 22mA 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, Missing Sensor, Zero, 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 |
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