D12-IR Combustible or CO2 Gas Transmitter
The D12-IR gas transmitter is a versatile infrared system used primarily for the detection of combustible levels of methane or other hydrocarbons.
Description
The D12-IR gas transmitter is a versatile infrared system used primarily for the detection of combustible levels of methane or other hydrocarbons. It may also be used for monitoring CO2 levels, either in ppm or percent levels.
D12Ex-IR transmitters provide analog signals for remote interface and optional relays for local alarming functions. Two digital communication options, Modbus™ and Hart™, are also available. Certified for use in explosion hazard areas, the unit provides rapid and reliable detection of
hazardous conditions so that protective measures can be activated.
The D12Ex-IR is also available with an infrared sensor designed for CO2 measurements in ambient air or in pumped gas samples. Two carbon dioxide sensors may be specified, one for low range use and another for higher levels of CO2. The low range sensor may be scaled from 0-1000 PPM minimum to 0-5% maximum, while the high range sensor covers ranges from 0-10% minimum to 0-50% maximum.
Features
- Backlit LCD Display
- Internal Data Logger
- 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
- Explosion Proof Enclosure
- 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
Sensor Type | Single path non dispersive infrared |
Sensor Separation | Maximum 100′ cable from sensor to transmitter |
Range | Combustible: 0-50% LEL min, 0-100% max Methane: 0-100% High Hydrocarbons: 0-10% by vol min, 0-100% by vol max Carbon Dioxide: 0-1,000 ppm, 0-50% max Nitrous Oxide: 0-1,000nppm |
Accuracy | +/-2% of value, but limited by available calibration gas accuracy |
Gases Available | Combustible gas, carbon dioxide or volumetric methane. Combustible gas selectable for methane, propane or butane Consult factory for other gases and vapors. |
Response Time | T90 < 20 seconds |
Electronic Repeatability | ± 1% |
Electronic Linearity | ± 0.5% |
Zero Drift | Less than 1% of full scale per month, non cumulative |
Span Drift | Dependent on operating environment but generally less than 1% per month |
Serial Interface | Hart (1200 baud modem interface) MODBUS (1200-9600 – RS232 or RS485 s/w selectable) |
Optional Alarm Relays | Three SPST, 5 A @ 230 VAC resistive |
Relay Coil | Programmable either normally energized or normally de energized |
Analog Output | Powered at 4-20mA, 600 ohms maximum at 24 VDC |
Power | 12-30 VDC, 350 mA maximum (3W average) |
Temperature Limits | -40 to 75°C |
Controls | 4 magnetic switches on front of transmitter |
Enclosure | Class 1 Div 1, Groups B, C & D, T6 |
Weight | 7.2 pounds |
Ordering Information
Many other combinations available, for pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com.
Description | |
D12 Gas Transmitter, Integral Sensor Holder, no relays | |
D12 Gas Transmitter, Integral Sensor Holder, with relays | D12EX-IR-2-1 |
D12 Gas Transmitter, Remote Sensor Holder, no relays, 25′ cable | D12EX-IR-3-1 |
D12 Gas Transmitter, Remote Sensor Holder, with relays, 25′ cable | D12EX-IR-4-1 |
Ordering Information – Sensors
Description | |
Carbon Dioxide Sensor, 0-5%/50% by vol | |
Carbon Dioxide Sensors, 0-1%/5% by vol | 00-1904 |
Combustible Gas Sensor, 0-50%/100% LEL | 00-1905 |
High Hydrocarbon, 0-100% by vol | 00-1906 |
Nitrous Oxide Sensor, 0-1,000 ppm/1% | 00-1997 |
Downloads
D12-IR gas transmitter literature
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