Simtronics DG-TT7 & DG-RT7 Gas Detectors

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Simtronics DG-TT7 & DG-RT7 Gas Detectors

Simtronics DG-TT7 and DG-RT7 series by Teledyne is part of the DG7 family of gas detectors. All have a common mode of operation for standardised training and maintenance.

The range is split into two categories:

  • DG-TT7/S uses a solid-state metal-oxide-semiconductor sensor. For the detection of Hydrogen Sulphide. The DG-RT7/S versions have a Syntel output.
  • DG-TT7/K features a thermal conductivity sensor to monitor explosion risks posed by flammable gases or vapours (hydrogen, hydrocarbons, alcohol, etc.). The DG-RT7/K versions have a Syntel output. The principle is very stable and can operate at high gas concentrations. In this configuration, the presence of oxygen is not essential, and catalytic poisoning is not an issue.

Microprocessor-driven, configurable using a wireless hand-held terminal (TLU) or by using a hard-wired HART protocol option, providing installation options and reduced service costs. Relay operation and alarm levels can be set using the TLU, a hazardous-area-approved device.

Common Features

  • Easy to use.
  • Ultrabright four-digit LED display, shows local status by display colour & alarm level.
  • 4-20mA output & 2 x configurable relays.
  • Compatible with most controllers and PLCs.
  • Power supply 24V DC.
  • Housing corrosion-resistant Stainless Steel.
  • Ingress Protection IP66.
  • Approvals ATEX & IECEx.
  • Range previously by Simrad Optronics.

Output Signal Options

  • HART Protocol 7th edition (facilitating nonproprietary interface).
  • Lonworks (Syntel).
  • 0-22mA (User configurable) included with DG-TT7-S.

DGI-TT7/E Electrochemical Toxic Gas Detectors, SS316L, Local Display

Cl₂ (Chlorine)
DGI-TT7-20AD-EXC-N0 – MultiTox detector, 10 ppm Cl₂, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-20AD-EXH-N0 – MultiTox detector, 10 ppm Cl₂, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-20AF-EXC-N0 – MultiTox detector, 50 ppm Cl₂, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-20AF-EXH-N0 – MultiTox detector, 50 ppm Cl₂, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

CO (Carbon Monoxide)
DGI-TT7-22AG-EXC-Y0 – MultiTox detector, 100 ppm CO, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-22AG-EXH-Y0 – MultiTox detector, 100 ppm CO, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-22AH-EXC-Y0 – MultiTox detector, 200 ppm CO, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-22AH-EXH-Y0 – MultiTox detector, 200 ppm CO, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-22AJ-EXC-Y0 – MultiTox detector, 500 ppm CO, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-22AJ-EXH-Y0 – MultiTox detector, 500 ppm CO, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-22AK-EXC-Y0 – MultiTox detector, 1000 ppm CO, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-22AK-EXH-Y0 – MultiTox detector, 1000 ppm CO, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

CO/H₂S (Carbon Monoxide with H₂S Compensation)
DGI-TT7-21AG-EXC-Y0 – MultiTox detector, 100 ppm CO/H₂S, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-21AG-EXH-Y0 – MultiTox detector, 100 ppm CO/H₂S, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

H₂ (Hydrogen)
DGI-TT7-30AL-EXC-Y0 – MultiTox detector, 2000 ppm H₂, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-30AL-EXH-Y0 – MultiTox detector, 2000 ppm H₂, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-30AN-EXC-Y0 – MultiTox detector, 10000 ppm H₂, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-30AN-EXH-Y0 – MultiTox detector, 10000 ppm H₂, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

H₂S (Hydrogen Sulphide)
DGI-TT7-31AE-EXC-Y0 – MultiTox detector, 20 ppm H₂S, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-31AE-EXH-Y0 – MultiTox detector, 20 ppm H₂S, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-31AF-EXC-Y0 – MultiTox detector, 50 ppm H₂S, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-31AF-EXH-Y0 – MultiTox detector, 50 ppm H₂S, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-31AG-EXC-Y0 – MultiTox detector, 100 ppm H₂S, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-31AG-EXH-Y0 – MultiTox detector, 100 ppm H₂S, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-31AH-EXC-Y0 – MultiTox detector, 200 ppm H₂S, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-31AH-EXH-Y0 – MultiTox detector, 200 ppm H₂S, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

HCl (Hydrogen Chloride)
DGI-TT7-32AF-EXC-Y0 – MultiTox detector, 50 ppm HCl, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-32AF-EXH-Y0 – MultiTox detector, 50 ppm HCl, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-32AG-EXC-Y0 – MultiTox detector, 100 ppm HCl, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-32AG-EXH-Y0 – MultiTox detector, 100 ppm HCl, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

HCN (Hydrogen Cyanide)
DGI-TT7-33AF-EXC-N0 – MultiTox detector, 50 ppm HCN, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-33AF-EXH-N0 – MultiTox detector, 50 ppm HCN, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

NH₃ (Ammonia)
DGI-TT7-39AF-EXC-N0 – MultiTox detector, 50 ppm NH₃, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-39AF-EXH-N0 – MultiTox detector, 50 ppm NH₃, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-39AG-EXC-N0 – MultiTox detector, 100 ppm NH₃, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-39AG-EXH-N0 – MultiTox detector, 100 ppm NH₃, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-39AK-EXC-N0 – MultiTox detector, 1000 ppm NH₃, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-39AK-EXH-N0 – MultiTox detector, 1000 ppm NH₃, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

NO (Nitric Oxide)
DGI-TT7-40AG-EXC-Y0 – MultiTox detector, 100 ppm NO, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-40AG-EXH-Y0 – MultiTox detector, 100 ppm NO, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

NO₂ (Nitrogen Dioxide)
DGI-TT7-41AE-EXC-Y0 – MultiTox detector, 20 ppm NO₂, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-41AE-EXH-Y0 – MultiTox detector, 20 ppm NO₂, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

O₂ (Oxygen)
DGI-TT7-42BC-EXC-G0 – MultiTox detector, 5% Vol. O₂ (Acid Environment), Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-42BC-EXC-M0 – MultiTox detector, 5% Vol. O₂, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-42BC-EXH-G0 – MultiTox detector, 5% Vol. O₂ (Acid Environment), Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-42BC-EXH-M0 – MultiTox detector, 5% Vol. O₂, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-42BJ-EXC-G0 – MultiTox detector, 25% Vol. O₂ (Acid Environment), Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-42BJ-EXC-M0 – MultiTox detector, 25% Vol. O₂, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-42BJ-EXH-G0 – MultiTox detector, 25% Vol. O₂ (Acid Environment), Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-42BJ-EXH-M0 – MultiTox detector, 25% Vol. O₂, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

SO₂ (Sulphur Dioxide)
DGI-TT7-47AE-EXC-Y0 – MultiTox detector, 20 ppm SO₂, Electrochemical, Configurable Output, SS316L, ATEX Ex d ia / IECEx
DGI-TT7-47AE-EXH-Y0 – MultiTox detector, 20 ppm SO₂, Electrochemical, HART Protocol, SS316L, ATEX Ex d ia / IECEx

DGI-RT7/E Electrochemical Toxic Gas Detectors for SYNTEL, SS316L, Local Display (LON Protocol)

Cl₂ (Chlorine)
DGI-RT7-20AD-EXL-N0 – MultiTox detector, 10 ppm Cl₂, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-20AF-EXL-N0 – MultiTox detector, 50 ppm Cl₂, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx

CO (Carbon Monoxide)
DGI-RT7-22AG-EXL-Y0 – MultiTox detector, 100 ppm CO, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-22AH-EXL-Y0 – MultiTox detector, 200 ppm CO, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-22AJ-EXL-Y0 – MultiTox detector, 500 ppm CO, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-22AK-EXL-Y0 – MultiTox detector, 1000 ppm CO, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx

CO/H₂S (Carbon Monoxide with H₂S Compensation)
DGI-RT7-21AG-EXL-Y0 – MultiTox detector, 100 ppm CO/H₂S, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx

H₂ (Hydrogen)
DGI-RT7-30AL-EXL-Y0 – MultiTox detector, 2000 ppm H₂, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-30AN-EXL-Y0 – MultiTox detector, 10000 ppm H₂, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx

H₂S (Hydrogen Sulphide)
DGI-RT7-31AE-EXL-Y0 – MultiTox detector, 20 ppm H₂S, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-31AF-EXL-Y0 – MultiTox detector, 50 ppm H₂S, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-31AG-EXL-Y0 – MultiTox detector, 100 ppm H₂S, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-31AH-EXL-Y0 – MultiTox detector, 200 ppm H₂S, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx

HCl (Hydrogen Chloride)
DGI-RT7-32AF-EXL-Y0 – MultiTox detector, 50 ppm HCl, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx
DGI-RT7-32AG-EXL-Y0 – MultiTox detector, 100 ppm HCl, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx

HCN (Hydrogen Cyanide)
DGI-RT7-33AF-EXL-N0 – MultiTox detector, 50 ppm HCN, Electrochemical, LON Protocol, SS316L, ATEX Ex d ia / IECEx

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