The ATI D12 Toxic Gas Transmitter stands out as a versatile and rugged solution for industrial gas detection. With support for up to 46 interchangeable sensors, the D12 significantly reduces the need for multiple transmitter models, simplifying inventory, installation, and maintenance. Designed for use in hazardous environments, the D12 combines intelligent design with powerful features that make gas monitoring safer and more convenient than ever.
Key Features at a Glance
- Supports 46 Gas Sensor Types
- Automatic Sensor Recognition
- Non-Intrusive Magnetic Tool Operation
- LCD Graphic Display with Alarm Indication
- Internal Data Logger with MODBUS™ Interface
- Explosion-Proof Housing (UL, FM, CSA Certified)
- Auto-Test Generator Compatibility
- HART™ and MODBUS™ Protocol Options
- Modular and Customizable Design
Smart Sensor Technology
One of the D12’s greatest strengths is its modular sensor design. Sensors are easily installed via a self-aligning plug-in holder, automatically recognized and verified upon installation. This plug-and-play functionality simplifies sensor replacement and eliminates guesswork during setup.
User-Friendly Interface
The D12 transmitter includes a large LCD graphics display for easy reading of gas concentrations and alarm conditions. Setup and calibration menus are intuitively structured, and the entire system can be operated non-intrusively using a magnetic tool—perfect for classified environments where opening the enclosure is impractical or unsafe.
A backlight is available when operating in 3-wire mode for improved visibility in low-light environments.
Built-In Data Logging
With its internal data logger, the D12 can store gas concentration readings at user-defined intervals. Data is easily accessible from the display or can be downloaded using MODBUS™ communication for remote analysis and recordkeeping.
Explosion-Proof Reliability
Safety is built into every aspect of the D12. Its cast aluminum enclosure is certified for Class I, Division 1, Groups B, C, D hazardous locations, making it ideal for industrial settings where explosive gases are a concern.
Advanced Alarm and Simulation Functions
The D12 offers three programmable alarm relays for flexible local alerting. Each relay supports customizable settings including:
- Set points
- Hysteresis
- On/Off delays
- Remote reset
Analog and relay output simulation capabilities allow for full system testing without applying actual gas—a major benefit during commissioning or maintenance.
Auto-Test Generator for Unmatched Peace of Mind
With ATI’s Auto-Test Generator, the D12 can automatically verify sensor responsiveness by applying a measured dose of gas at set intervals (1–14 days). If the sensor fails to respond after three attempts, the system triggers a fault alarm. The auto-test feature can also be triggered manually, offering a proactive way to maintain system integrity—especially useful in remote or high-risk environments.
The auto-test function requires a compatible E18 gas generator, matched to your sensor type and range.
Digital Communication Options
Choose between:
- HART™ Protocol: Supports universal and common practice commands via Bell 202 FSK modem.
- MODBUS™ Protocol: Offers full access to sensor data and settings over RS232 or RS485.
The D12 also provides scalable 4-20 mA outputs, ensuring smooth integration with your existing control systems.
Flexible Installation Options
ATI offers various sensor mounting configurations to suit any installation environment:
Toxic Gas Applications:
- Integral Sensor Holder (standard): Mounted directly to the bottom of the enclosure.
- Remote Sensor Holder: Custom cable lengths for remote mounting in hard-to-reach or hazardous areas.
Combustible Gas Applications:
- Integral or Remote sensor holders available, both with optional Auto-Test Generator support.
Available Accessories
- Calibration Adapter
- Flowcell Assembly
- Sensor Splash Guard
- Remote Interconnect Cables (50 ft)
- Auto-Test Gas Generator (E18)
Customizable Sensors for Specific Applications
Each sensor is available in a standard range, with options for custom calibration to meet specific detection needs. Whether monitoring chlorine, hydrogen sulfide, ammonia, or combustible gases, ATI offers sensor modules tailored to your application.
Not sure which sensor you need? Our team is ready to help you select and configure the right solution for your facility.
Conclusion
The ATI D12 Toxic Gas Transmitter is a high-performance, highly adaptable gas monitoring system built for the demands of modern industry. Whether you’re protecting personnel, verifying system performance, or complying with safety regulations, the D12 offers the flexibility, reliability, and intelligence required to get the job done.
Contact us today to learn more about configuration options or to request a quote for your application.