Micromanometers

Pressure differentials guide air from clean to less-clean spaces and help contain hazards at the source. In life sciences facilities, the ability to measure very small pressure differences with confidence is essential to supporting ISO 14644 cleanroom strategies, BSL containment practices, USP pharmacy requirements, and dependable HVAC operation. Micromanometers provide that capability with sensitive sensors, stable readings, and practical workflows that fit commissioning, qualification, and routine maintenance.

TSI micromanometers measure low differential pressure with resolution suited to typical setpoints across airlocks, gown rooms, clean corridors, and process rooms. Teams use them to verify directional airflow, assess stability over time, and connect the pressure profile to complaints like door binding or drifting particle counts. When combined with Pitot tubes or averaging probes, they also support duct traverses to calculate airflow and validate supply and exhaust capacity. Measuring filter differential pressure helps indicate loading trends, aiding decisions about replacement timing and potential root causes when airflow falls below targets.

Applications that benefit most:

• Cleanroom pressure mapping during commissioning and periodic verification
• Containment room pressure checks for biosafety and isolation spaces
• Duct traverses to validate fan performance and VAV calibration
• HEPA and prefilter ΔP trending to support predictive maintenance
• Troubleshooting for noisy ducts, comfort issues, and unstable setpoints

Field-ready considerations often include:

• High-resolution sensors for low-pressure ranges common in critical spaces
• Integrated prompts for traverse workflows and averaging methods
• Data logging with timestamps for trend analysis and audit trails
• Rugged construction sized for above-ceiling and mechanical room access

Recommended best practices:

1. Establish acceptance criteria for each room or barrier.
2. Measure baseline pressures with doors in normal operating states.
3. Trend readings across shifts to catch intermittent issues.
4. Use traverses to connect fan performance and terminal device settings to room behavior.
5. Archive results to support quality systems and inspections.

Micromanometers turn subtle pressure differences into actionable insights. With accurate, repeatable measurements and clear documentation, your team can support stable environmental conditions, troubleshoot quickly, and maintain confidence in critical space performance.