Belimo A-22G-A22 Calibration kit

The Belimo A-22G-A22 Calibration Kit is an essential field service tool designed for the precise zero and span calibration of room CO2 sensors and duct-mounted gas detectors. Engineered for HVAC automation systems, this kit ensures that IAQ (Indoor Air Quality) sensors maintain accuracy within strict tolerances, preventing sensor drift that can lead to inefficient demand-controlled ventilation (DCV). The kit facilitates the accurate delivery of calibration gas to the sensor module, allowing technicians to verify analog output signals (0-10V or 4-20mA) against known gas concentrations. Proper use of the A-22G-A22 ensures compliance with regional building codes and mechanical standards. By maintaining sensor accuracy, contractors can optimize air handling unit (AHU) performance and reduce energy consumption associated with over-ventilation. This rugged, professional-grade kit is compatible with various Belimo gas sensors, providing the reliable interface needed for high-stakes commercial HVAC maintenance and environmental monitoring applications.

• Ensures high-precision sensor linearity and multi-point field calibration accuracy.
• Minimizes sensor drift in critical demand-controlled ventilation sequences.
• Streamlines IAQ monitoring maintenance for LEED and well-building compliance.
• Reduces false alarms and HVAC controller errors caused by uncalibrated CO2 sensing elements.
• Robust design compatible with standard calibration gas cylinders and pressure regulators.

How do I perform a zero-point calibration with the Belimo A-22G-A22?
Connect the calibration kit to the sensor module and apply nitrogen (N2) or zero-grade air. Adjust the sensor's baseline until the BMS or multimeter reflects the appropriate zero-level voltage or current output.

What gas concentrations are required for the A-22G-A22 span adjustment?
Technicians typically use a CO2 calibration gas concentration that matches the sensor's full-scale range (e.g., 2000 ppm) to ensure the span calibration aligns with the analog signal curve.

Is this kit compatible with Belimo duct sensors and room sensors?
Yes, the A-22G-A22 is designed to interface with the sensing elements found in both duct-mounted and wall-mounted Belimo gas detection assemblies for versatile field service.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.