Bapi BA/H200-O-BB2 Humidity Transmitter Outside Air

Product Description

The BAPI BA/H200-O-BB2 is an outdoor humidity transmitter designed for building automation and HVAC control applications. It delivers a 2% accuracy reading and provides an interchangeable analog output of 0 to 5 VDC or 4 to 20 mA, making it compatible with a wide range of building automation system inputs. Housed in a poly BAPI-Box 2 enclosure rated for outside air service, the transmitter operates on 24 VAC or 24 VDC power. Licensed HVAC controls technicians and building automation contractors are the primary installers for this device.

This transmitter is suited for outdoor air humidity sensing in commercial and light-industrial HVAC systems. Typical applications include economizer control, psychrometric calculations, enthalpy-based control strategies, dew point monitoring, and wash-down environments where moisture exposure is a concern. The outside air mount (OSA) configuration positions the sensor element to accurately sample ambient conditions for energy management and air-side economizer sequences.

Key Features

• 2% humidity accuracy for reliable building automation feedback
• Interchangeable output: 0 to 5 VDC or 4 to 20 mA for broad BAS compatibility
• Accepts 24 VAC or 24 VDC power input
• Poly BAPI-Box 2 enclosure suited for outdoor and wash-down environments
• OSA mount configuration for accurate ambient air sampling
• Supports economizer control, enthalpy, dew point, and psychrometric applications

Compatibility

Designed for outside air humidity sensing in commercial HVAC and building automation systems requiring a 0 to 5 VDC or 4 to 20 mA analog input. Suitable for economizer controllers, energy management systems, and DDC panels that accept standard analog humidity signals.

Installation Notes

Installation is typically performed by a licensed HVAC controls technician or building automation specialist. De-energize the control panel and verify that 24 VAC or 24 VDC power is off before wiring the transmitter. Mount the enclosure in the outside air stream per the OSA configuration guidelines, ensuring the sensor element is protected from direct water impingement while remaining exposed to ambient airflow. Follow applicable local electrical codes and manufacturer wiring diagrams when selecting and connecting the output signal type.

Technical Specifications

• Accuracy: 2%
• Output Signal: 0 to 5 VDC (interchangeable with 4 to 20 mA)
• Power Requirements: 24 VAC, 24 VDC
• Application: Outdoor Air Humidity, Economizer Control, Psychrometric Calculations, Enthalpy, Dew Point, Wash Down
• Mount Type: Outside Air (OSA)
• Housing Material: Poly
• Enclosure: BAPI-Box 2

Standard Information

• Brand: BAPI
• Manufacturer Part Number: BA/H200-O-BB2