GPR-2500 AIS Oxygen Transmitter
Operates on 9-28VDC with 4-20mA signal output, two (2) field configurable alarms with programmable time delay and relay contacts. Meets recognized intrinsic safety (approval pending) standards for use in Class 1, Division 1, Groups B, C, D hazardous areas. Proprietary advanced galvanic sensor capable of oxygen analysis from 0.05% to 100% and 36 months expected life. Automated range, zero, calibration, system diagnostic functions. Wall, panel or pole mount NEMA 4 configuration. Shown at left with optional H2S Sample System (P/N A-3237).
Ranges - Standard:  0-1%, 0-5%, 0-10%, 0-25%

GPR-2500 IS Percent Oxygen Transmitter
Configuration and performance equal to above except—operates on two wire 12-28VDC loop power without alarm contacts.

GPR-2500 Oxygen Transmitter
Two wire loop powered 4-20mA signal output operates on 12-28VDC. Suitable for use in Class 1, Division 1, Groups A-D hazardous areas with optional factory specified intrinsic safety barriers. Proprietary advanced galvanic sensor capable of oxygen analysis from 0.05% to 100% and 36 months expected life. Automated range, zero, calibration, system diagnostic functions. Wall mount NEMA 4 configuration. Available with optional H2S Sample System (P/N A-3237)
Ranges - Standard:  0-1%, 0-5%, 0-10%, 0-25%

GPR-25 XP Oxygen Transmitter
Two wire loop powered 4-20mA signal output operates on 12-28VDC. Enclosure certified for use in Class 1, Division 1, Groups B, C, D. Standard flame arrestors certified for use in Class 1, Division 1, Groups C, D. Proprietary advanced galvanic sensor capable of oxygen analysis from 0.05% to 100% and 36 months expected life. Manual range and calibration functions. Wall mount NEMA 4 configuration. Available with optional H2S Sample System (P/N A-3237)
Ranges - Standard:  0-5%, 0-25%

GPR-25 AXP Oxygen Transmitter
Operates on 9-28VDC with 4-20mA signal output and two (2) field configurable alarms with relay contacts. Enclosure certified for use in Class 1, Division 1, Groups B, C, D. Standard flame arrestors certified for use in Class 1, Division 1, Groups C, D. Proprietary advanced galvanic sensor capable of oxygen analysis from 0.05% to 100% and 36 months expected life. Manual range and calibration functions. Wall mount NEMA 4 configuration. Available with optional H2S Sample System (P/N A-3237)
Ranges - Standard:  0-5%, 0-25%

GPR-28 Oxygen Analyzer
Proprietary advanced galvanic sensor capable of oxygen analysis from 0.05% to 100% and 36 months expected life.  Enclosure certified for use in Class 1, Division 1, Groups B, C, D. Standard flame arrestors certified for use in Class 1, Division 1, Groups C, D. Wall mount configuration. Optional: CENELEC approved enclosure and flame arrestors.
Ranges - Standard:  0-1%, 0-5%, 0-10%, 0-25%

Note: Optional GPR-28 CENELEC configuration.

GPR-27 Oxygen Analyzer
Proprietary advanced galvanic sensor capable of oxygen analysis from 0.05% to 100% and 36 months expected life. Analysis unit (housing sensor) enclosure certified for use in Class 1, Division 1, Groups B, C, D. Standard flame arrestors certified for use in Class 1, Division 1, Groups C, D.  Electronics enclosed in general purpose panel mount configuration.
Ranges - Standard:  0-1%, 0-5%, 0-10%, 0-25%

GPR-27 W Oxygen Analyzer
Proprietary advanced galvanic sensor capable of oxygen analysis from 0.05% to 100% and 36 months expected life. Analysis unit (housing sensor) enclosure certified for use in Class 1, Division 1, Groups B, C, D. Standard flame arrestors certified for use in Class 1, Division 1, Groups C, D.  Electronics enclosed in general purpose wall mount NEMA 4 configuration.
Ranges - Standard:  0-1%, 0-5%, 0-10%, 0-25%