Model 100 Toxic Gas Sensor

Manufacturer: Teledyne| Detcon
main_DET_DM-100.png
Images are representations only.

Model 100 Toxic Gas Sensor

Manufacturer: Teledyne| Detcon
Request a Quote Favorite
Method of detection is by diffusion adsorption. Air and gas molecules diffuse through a porous membrane contacting an electrolyte solution which creates a change in electrical conductance between a reference and measure electrode. 

This change in conductance is conditioned by internal electronic circuitry to provide a linear 4-20 milliamp signal proportional to the gas concentration. 

Model DM-100 Series sensors feature intelligent electronics, non-intrusive operator interface and comprehensive fault diagnostics. 

The sensor is packaged in an electro-polished 316 stainless steel housing fitted with a ¾" NPT thread. 

The plug-in, field replaceable sensor cell features large surface area gold-plated pins that reduce the effects of corrosion in harsh industrial environments. 

Signal conditioning electronics are completely encapsulated in the sensor housing adding a high level of durability to the design. 

The packaging is XP-intrinsically safe. This innovative design marks a return to a simple, more affordable, and durable gas detection sensor without compromising quality.

Model DM-100 sensors provide a 2-wire loop powered 4-20 mA current signal equivalent to the sensor range of detection.

Upper enclosure options are aluminum and stainless steel. Additional accessories include wireless communications, a loop powered digital display.

Each sensor is shipped with a splash guard with integral calibration port. Detcon’s toxic gas sensors have a long shelf life and are supported by an industry-leading warranty.
Features
  • XP-intrinsically Safe
  • 2 Wire Loop powered
  • Field Replaceable Electrochemical Sensor
  • Non-intrusive Magnetic Interface
  • Built-in Diagnostics
  • Fully Encapsulated ITM Electronics
  • Quick Thread Release (for sensor replacement)

Specifications

Manufacturer

Accuracy

  • ± 1 % of Full Scale
  • ± 2 % of Full Scale

Ambient Temperature Range

  • -40° to 50° C (-40° to 122° F)

Approvals & Certifications

  • cCSAus
  • ATEX - II 2 G Ex d [ib] Ib IIC T4 (Tamb: -40° to 50° C), II 1 G Ex ia II C T4 (with IS Barrier Installed)
  • CE Marking
  • CSA - Class I, Div. 1, Grade A, B, C, D (Tamb: -40° to 50° C), Class I, Zone 1, Group IIC
  • ISO 9001: 2008
  • NRTL - Class I, Div. 1, Grade A, B, C, D (Tamb: -40° to 50° C), Class I, Zone 1, Group IIC
  • UL

Cable Length

  • 4,000 ft (1,219 m)
  • Power/Analog, Max.
  • Serial Output, Max.

Circuit Protection

  • EMI/RFI Protected/Immunity
  • Miswiring
  • Over-Voltage

Communication

  • HART
  • Wireless
  • Baud Rate: 9,600 bit/sec (9,600, N, 8, 1 Half-Duplex)
  • RS-485, Modbus RTU Communication Protocol

Consumption

  • 20 mA - Maximum
  • Normal Operation: 4 mA (0.1 W at 24 Vdc)

Display

  • 4-digit LED Loop-Powered Display with Gas Concentration & Fault

Electrical - Free Leads

  • Four 18 Gauge, 5.5" (14 cm) Long Wire Leads

Electrical Connectors

  • 2-Wire Shielded Cable
  • 2-Wire Twisted-Pair Shielded Cable
  • 14 AWG (2.5 mm²)
  • Junction Box

Enclosure, Body Material

  • Stainless Steel
  • 316 Stainless Steel
  • Aluminum

Environmental Protection

  • Electrical Classification: Explosion-proof
  • IP66
  • NEMA 4X Weatherproof
  • NEMA 7 Explosion-proof

Humidity

  • 0 to 99 % RH, Non-Condensing (Continuous)
  • 0 to 100 % RH (Intermittent)

Input Power

  • 10-28 Vdc

Loop Resistance

  • 750 ohms @ 24 Vdc, Max.

Measuring Range

  • 0 to 25 % Oxygen
  • 0 to 100 ppm

Mounting

  • 5.5" (140 mm) Mounting Holes with J-box
  • 5.5" (140 mm) Mounting Holes Center to Center

NPT Connection

  • 3/4" NPT Male Threaded Connection with Locking Nut
  • 3/4" NPT Male

Operating Pressure

  • Atmospheric ± 10 %

Operating Temperature

  • -20° to 50° C (-4° to 122° F)

Output

  • 4-20 mA - 0-100 % of Full Scale
  • Linear 4-20 mA DC (750 ohms, Max.)
  • 24 Vdc
  • 1.2 mA - All Fault Diagnostics (without Display)
  • 22 mA - Over-Range Condition
  • 3 mA - All Fault Diagnostics (with Display)

Output Format

  • Analog Output

Repeatability

  • ± 1 % of Full Scale
  • ± 2 % of Full Scale

Response Time

  • T90 < 140 seconds
  • T90 < 70 seconds
  • T90 < 120 seconds
  • T90 ≤ 20 seconds
  • T90 ≤ 10 seconds
  • T90 < 60 seconds

RFI/EMI Protection

  • Complies with EN 61362

Sensor, Probe Connection

  • 2-Wire

Sensor, Probe Type

  • Galvanic Metal Air Battery
  • 3-Electrode Electrochemical Cell
  • Continuous Diffusion / Absorption
  • Plug-In Field Replaceable Typical

Span Effect

  • < 5 % Signal Loss Per Year - Span Drift (In the first 2 years)
  • < 1 - 5 % Signal Loss Per Month - Span Drift

Storage Temperature

  • -35° to 55° C (-31° to 131° F)

  • Chemical Plants
  • Food & Beverage
  • Oil & Gas Applications
  • Pulp & Paper
  • Refineries
  • Steel Mills
  • Utilities
  • Wastewater Treatment Plants

Documentation

Data Sheets

Brochures

Manuals

show more