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D12 Toxic & Combustible Gas Detector
Brand: Analytical Technology IncATI's D12 Toxic and Combustible Gas Transmitter will accept up to 46 different sensors, greatly reducing the need for multiple gas transmitter models.
The self-aligning sensor holder simply plugs in, with automatic gas sensor recognition and verification when contact is made.
For many toxic and combustible gases, ATI offers a unique sensor response testing system unmatched by any competitive transmitter.
Even outdoors in high wind conditions, the Auto-Test system provides reliable response checks to ensure system integrity.
Sensor response is verified with an actual gas sample, generated on demand.
Generators store run time information accessible to operators, and are automatically tested for compatibility with the installed sensor.
D12 gas transmitters provide useful features that simplify installation, operation, and maintenance.
From clear menu-driven setup pages to large numerical display of gas values, you simply can’t find a more versatile gas transmitter.
Gas concentrations are displayed in large, easy to read numbers.
The display also provides alarm indication and complete menus for setting up operating parameters.
Backlighting is available when operating in 3-wire mode.
Operating functions such as calibration, alarm setup, alarm reset, data view, and setup options are all available using a magnetic tool. It is not necessary to open the enclosure when making adjustments.
Features- Backlit LCD Display
- Non-Intrusive operating functions such as calibration, alarm setup, alarm reset, data view, and setup
- Options are all available using a magnetic tool.
- No need to open the enclosure when making adjustments.
- Password Protection
- Modular Electronics
- Scalable 4-20 mA: The output range for a particular sensor is programmable within the range boundaries set in that sensor.
- Three Internal Alarm Relays
- Analog Output Simulation
- Relay Output Simulation
- Serial Communication Interface
Specifications
Gas Type
- Customer Selected from Available Sensor List
Sensor Type
- Electrochemical for Toxic Gases and Oxygen
- Catalytic Bead for Combustible Gas
Range
- User Adjustable within Limits of Selected Sensor
Response Time
- Sensor Dependent
Accuracy
- Generally ± 10 % of Value (Limited by Available Calibration Gas)
Repeatability
- ± 1 % (Electronic)
Linearity
- ± 0.5 % (Electronic)
Zero Drift
- Less than 2 % Full Scale Per Month, Non-Cumulative
Span Drift
- Dependent on Environment but Generally Less than 3 % Per Month
Alarms
- Three Concentrations Alarms (Caution, Warning, Alarm) Programmable for Setpoint, Hysteresis, Alarm Delay, and Manual or Automatic Reset. One Fault Alarm with Programmable Output and Relay Response.
Analog Output
- Loop-Powered 4-20 mA, 675 ohms Max. at 24 Vdc
Serial Interface
- Modbus (1200-9600 - RS-232 or RS-485, Software Selectable)
- HART (1200 Baud Modem Interface)
Power
- 12-30 Vdc, 25 mA max. in Loop-Powered Mode
- 12-30 Vdc, 200 mA max. in 3-wire Mode
Alarm Relays
- Three SPDT, 5 A @ 230 Vac Resistive
Relay Coil
- Programmable Either Normally Energized or Normally Deenergized.
Enclosure
- Explosion-Proof, Class 1, Div. 1, Groups B, C, & D.
Sensor Auto-Test
- Optional Gas Generator Dependent on Sensor.
Controls
- 4 Magnetic Switches on Front of Transmitter
Operating Temperature
- -30° to +60° C for Toxics (-10° C min. for O₂ Sensor)
- -40° to +70° C for Combustibles
Weight
- 4 lb (1.8 kg)
- Chemical Processing
- Pulp & Paper
- R&D Labs
- Semiconductor Plants
- Refineries
- Pharmaceuticals
- Food Processing
- Aluminum Refining
- Breweries
- Metals Processing
- Water Treatment
- Wastewater Treatment
- Electric Utilities
- Agricultural Chemicals
- Plastics Manufacturing