B12 2-Wire Gas Transmitter

A loop-powered transmitter for toxic gas detection with multiple sensor mounting configurations.

9 ₫

Key benefits

Capable of monitoring a large range of gases
Suitable for applications requiring battery operation

Category: Uncategorized

ATi’s B12 2-Wire Gas Detector is a loop-powered transmitter for toxic gas detection with multiple sensor mounting configurations.

Monitoring hazardous gases in ambient air

ATi’s B12 2-Wire Gas Detectors are loop-powered instruments that transmit a 4-20 mA signal linearly proportional to gas concentration. Operated from a 24 VDC power supply, the transmitter will drive loads up to 675 ohms, sufficient for most monitoring applications. Alternatively, the unit can operate at 12 VDC with reduced output load for applications requiring battery operation.

These detectors are normally supplied with the sensor close coupled to the enclosure. However, for special applications, the unit can be supplied with separate sensors that can be located up to 25 feet from the transmitter. Sensor duct mounting adapters and sensor flowcells can also be provided for specific applications. Contact ATi with details of any special requirements.

Features & specifications

Wide range of gases available from sensor list
Loop-powered 4–20 mA, 675 ohms maximum at 24 VDC
12–30 VDC
Explosion-proof enclosure optional, Class 1, Div., 1, Groups B, C, & D
Operating temperature between -30° to +55°C (except oxygen, which is -10° to +55°C)
Sensor Pressure Limits: 7–30 PSIA (0.5–2 Bar)
Optional 3-Digit LCD

Specifications

Item	Description
Gas Type	Customer-selected from available sensor list
Range	Supplied with standard range for each gas unless otherwise specified
Accuracy	Generally ±5% of value, but limited by available calibration gas accuracy
Electronic Repeatability	±1% of full scale
Electronic Linearity	±0.5% of full scale
Zero Drift	Sensor dependent, but generally less than 2% of full scale per month, non-cumulative
Span Drift	Application dependent, but generally less than 3% per month
Output	Loop-powered 4-20 mA, 675 ohms maximum at 24 VDC
Power	12–30 VDC
Enclosure	NEMA 4X Polystyrene, optional explosion-proof enclosure, Class 1, Div. 1, Groups B, C & D
Controls	Zero and span potentiometers mounted on transmitter circuit board
Operating Temperature	-30° to +55°C (except oxygen, which is -10° to +55°C)
Sensor Pressure Limits	7–30 PSIA (0.5–2 Bar)
Weight	0.25 lbs (0.12 kg); 1.75 lbs (0.8 kg) for explosion-proof unit
Display	Optional 3-Digit LCD (not available with explosion-proof enclosure)

Gas & Range Availability

Gas	Minimum Range	Maximum Range
Ammonia	0-100 PPM	0-2000 PPM
Carbon Monoxide	0-100 PPM	0-1000 PPM
Hydrogen	0-1000 PPM	0-10%
Nitric Oxide	0-50 PPM	0-500 PPM
Oxygen	0-5%	0-30%
Phosgene	0-1 PPM	0-100 PPM
Bromine	0-1 PPM	0-20 PPM
Chlorine	0-1 PPM	0-200 PPM
Chlorine Dioxide	0-1 PPM	0-200 PPM
Fluorine	0-1 PPM	0-200 PPM
Iodine	0-1 PPM	0-200 PPM
Ozone	0-1 PPM	0-200 PPM
Hydrogen Peroxide	0-1 PPM	0-200 PPM
Hydrogen Cyanide	0-1 PPM	0-200 PPM
Hydrogen Fluoride	0-1 PPM	0-200 PPM
Hydrogen Sulfide	0-10 PPM	0-500 PPM
Sulfur Dioxide	0-10 PPM	0-200 PPM
Arsine	0-1000 PPB	0-200 PPM
Diborane	0-1000 PPB	0-200 PPM
Germane	0-1000 PPB	0-200 PPM
Hydrogen Selenide	0-1000 PPB	0-200 PPM
Phosphine	0-1000 PPB	0-200 PPM
Silane	0-10 PPM	0-200 PPM
Iodine	0-2 PPM	0-200 PPM
Acid Gases	0-10 PPM	0-200 PPM
Ethylene Oxide	0-20 PPM	0-200 PPM
Formaldehyde	0-20 PPM	0-200 PPM
Alcohol	0-500 PPM	0-2000 PPM
Acetylene	0-500 PPM	0-2000 PPM

How To Order

Model B12-CC-D-EEEE 2-Wire Gas Transmitter

Suffix CC: Gas Type – Standard range shown in parentheses
Suffix D: Transmitter Enclosure Type
Suffix EEEE: Measurement Range
Suffix F: Units of Measurement

Accessories

Code	Description
00-0118	Calibration adapter for standard sensors
00-0258	Calibration adapter for explosion-proof sensors
45-0046	Rain shield for explosion-proof sensors
00-0261	Remote calibration adapter
00-0255	Flowcell assembly for A10 standard sensor
00-0298	Flowcell assembly for C10 explosion-proof sensors

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Monitoring hazardous gases in ambient air

Features & specifications