Analytical Technology 2-Wire Gas Transmitter, B12
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B12 2-Wire Gas Transmitter

Brand: Analytical Technology Inc
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Analytical Technology 2-Wire Gas Transmitter, B12
Series B12 transmitters 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.

Transmitters 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.
Features
  • 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

Brand

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 Lineraity

  • ± 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 Max. at 24 Vdc

Power

  • 12 - 30 Vdc

Enclosure

  • NEMA 4X Polystyrene, Explosion-Proof Optional, 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 X-Proof Unit)

Display

  • Optional 3-Digit LCD (Not Available with X-Proof Enclosure)

Documentation

Outline Drawings

Specifications

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