DG-TT7-S Solid State MOS Gas Detector
Manufacturer: Teledyne| Detcon
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DG-TT7-S Solid State MOS Gas Detector
Manufacturer: Teledyne| DetconThe MultiTox DG-TT7-S intelligent solid-state (MOS) hydrogen sulfide gas detector has been designed for ease of installation, operation and maintenance in hot and dry environments.
The DG-TT7-S is a solid-state metal oxide semiconductor (MOS) gas detector used mainly for the detection of hydrogen sulfide in arid locations having air present.
The DGTT7-S can also be configured for other gases, such as refrigerants (e.g. R22). The unit employs a robust sensing element that needs recalibration just once a year.
In addition the device does not need a high gas concentration dose to reactive the active sensing material.
The intelligent, microprocessor driven unit is fully configurable using a wireless handheld terminal (TLU) or by using the hard wired HART option giving true flexibility to the installer.
Elements such as relay operation and alarm levels are all set via the TLU, hazardous area approved handheld unit.
The unit may be interfaced directly with a wide range of panels, controllers and PLC’s etc.
The device offers HART Protocol 7th edition output as an option.
Specifications
Manufacturer
Accuracy
- ± 10 % of Calibration Range
Approvals & Certifications
- ATEX - II 2 G Ex d IIC T6 Gb (-40° to 65° C)
- IEC Ex d IIC T6 Gb, LCl 11.0060X
- ISO 9001: 2008
Communication
- HART
Consumption
- 5 W Normal
Display
- 4-Digit LED & Backlight Color Status with Automatic Intensity Adjustment
Electrical Connectors
- 16 AWG (1.5 mm²)
- 28 AWG, (0.14 mm²)
- Shielded Cable
Enclosure, Body Material
- 316L Stainless Steel
Environmental Protection
- IP66
Humidity
- 0 to 95 % Relative Humidity, Non-Condensing
Load Impedance
- 700 ohms
Measuring Range
- 0 to 100 ppm - H₂S
Media
- Gas
Operating Temperature
- -40° to 65° C (-40° to 149° F)
Output
- 4-20 mA
Power Requirement
- 18-28 Vdc
Relay Output
- 1 A / 30 V
Response Time
- T50 < 30 seconds
- T90 < 120 seconds
RFI/EMI Protection
- Complies with EN 50270
Storage Temperature
- -40° to 70° C (-40° to 158° F)
- Chemical Plants
- Offshore Drilling & Production Platforms
- Processing & Storage Plants
- Refineries
