Bapi BA/H300-D-BB Duct Humidity Transmitter 3% Accuracy

Product Description

The BAPI BA/H300-D-BB is a duct-mount relative humidity transmitter designed for building automation and HVAC control applications. It delivers an interchangeable analog output of 0 to 5 VDC or 4 to 20 mA, allowing integration with a wide range of building automation systems and controllers without additional signal conditioning. The unit operates on 24 VAC or 24 VDC power and carries a 3% accuracy rating. The BAPI-Box enclosure is constructed from poly housing and is sized for standard duct insertion. Licensed HVAC controls technicians and building automation system integrators are the typical installers.

This transmitter is suited for duct installations in systems requiring reliable humidity monitoring and control. Documented applications include humidification and dehumidification control loops, supply, discharge, and return air monitoring, economizer control, process control, and critical environment monitoring. Facility types noted in application data include clean rooms, data centers, schools, hospitals, and office buildings. The interchangeable output signal makes it adaptable for retrofit and new-construction BAS projects alike.

Key Features

• 3% humidity accuracy for reliable process and comfort control
• Interchangeable output: 0 to 5 VDC or 4 to 20 mA selectable without rewiring
• Accepts 24 VAC or 24 VDC power for broad compatibility with low-voltage control circuits
• Duct-mount BAPI-Box poly enclosure for direct insertion into air handling ductwork
• Suitable for critical environments including clean rooms, data centers, and healthcare facilities

Compatibility

Designed for duct installation in HVAC and building automation systems accepting 0 to 5 VDC or 4 to 20 mA analog humidity input signals powered at 24 VAC or 24 VDC.

Installation Notes

Installation should be performed by a licensed HVAC controls technician or building automation system integrator. Power down the control circuit and de-energize the 24-volt supply before wiring or inserting the transmitter into the duct. Follow NEC low-voltage wiring requirements and the BAS manufacturer wiring guidelines when connecting signal and power leads. Confirm the output signal type selection matches the controller input configuration before commissioning.

Technical Specifications

• Accuracy: 3%
• Output Signal: 0 to 5 VDC or 4 to 20 mA (interchangeable)
• Power Requirements: 24 VAC or 24 VDC
• Mount Type: Duct
• Housing Material: Poly
• Applications: Humidification, Dehumidification, Supply Air, Discharge Air, Return Air, Economizers, Clean Rooms, Data Centers, Process Control, Schools, Hospitals, Office Buildings

Standard Information

• Brand: BAPI
• Manufacturer Part Number: BA/H300-D-BB