Description
The DDPG-TFT (Model: PG-101) is a digital differential pressure gauge designed to fit the standard Magnehelic® gauge cutout, making it a natural upgrade for cleanrooms, biosafety cabinets, hospital isolation rooms, operating theatres, and air handling units (AHUs).
Unlike analog gauges that simply display a reading, the DDPG-TFT goes further. Its 3" multicolour TFT screen changes font colour from white to red when pressure exceeds set limits, giving staff an instant visual alert without needing to be at the device. This makes it especially valuable in environments like hospital OTs and pharmaceutical cleanrooms where pressure compliance is critical and a missed alarm can have serious consequences.
It also integrates directly with BMS, SCADA, and PLC systems via RS485 Modbus, and supports 4–20 mA analog output, making it easy to incorporate into existing building management infrastructure without additional hardware.
Features
- Field Selectable Engineering Units
Engineering units can be switched between Pascals (Pa), Inches Water Column (In.W.C.), and mm Water Column (mm.W.C.) directly from the front panel. This accommodates varying standards across facility types, as pharmaceutical QC laboratories typically operate in Pascals while HVAC engineers prefer mm.W.C., with no reconfiguration or recalibration required.
- Accurate and Reliable Measurement
Delivers stable, repeatable differential pressure readings with ±0.5% full-scale accuracy. In semiconductor fabrication facilities and pharmaceutical cleanrooms, even minor pressure deviations can compromise product integrity or regulatory compliance, making consistent and reliable measurement essential.
- Easy-to-use Interface
Parameters, alarm setpoints, and menu navigation are all accessible via front-panel keys, requiring no specialist tools or training. This is particularly beneficial in hospital operating theatres and pharmaceutical manufacturing environments where operational demands are high and staff onboarding time is limited.
- Process Monitoring in Real Time
Live differential pressure levels across filters, room boundaries, and laminar airflow cabinets are displayed continuously. In life sciences environments, this ensures ISO classification requirements and GMP pressure cascades are being maintained at all times, not only during scheduled inspections or audits.
- Communication with RS485 Modbus
Integrates directly with BMS, SCADA, and PLC systems for centralised pressure monitoring across an entire facility. In large semiconductor fabrication plants or multi-room pharmaceutical suites, consolidated data from all monitored zones supports faster incident response and complete audit trail documentation for regulatory submissions.
- Built-in buzzer alarm
An audible alert is triggered immediately upon setpoint breach, ensuring prompt staff notification even in high-noise production environments. In hospital isolation rooms and biosafety cabinets, where an unacknowledged pressure failure carries serious contamination risk, this immediate notification removes any dependence on manual periodic checks.
Applications
- Food Processing Areas: Monitors differential pressure across ventilation filters and process enclosures to maintain clean airflow, reducing the risk of airborne contamination in food production environments.
- Data Centers: Monitors differential pressure across cooling units and air filtration systems to ensure consistent airflow, supporting thermal management and reducing the risk of equipment failure due to inadequate ventilation.
- Semiconductor and Electronics Manufacturing: Monitors cleanroom differential pressure to maintain the required ISO classification, protecting sensitive wafers and electronic components from particulate contamination during fabrication.
- Filter Pressure Monitoring: Continuously tracks pressure drop across HEPA and other filtration systems, providing early indication of filter loading or blockage so that maintenance can be scheduled before air quality or airflow is compromised.
- Pharmaceutical and GMP Environments: Maintains and monitors the differential pressure cascades required between classified zones in GMP manufacturing facilities, supporting regulatory compliance with standards such as WHO, EU GMP Annex 1, and Schedule M.
- Hospital Isolation Rooms and Operating Theatres: Monitors the differential pressure between isolation rooms, operating theatres, and adjacent corridors to ensure directional airflow is maintained, preventing cross-contamination and supporting infection control protocols.
- Biosafety Cabinets: Continuously monitors differential pressure within biosafety cabinets to verify that containment integrity is maintained, ensuring a safe working environment when handling biological or hazardous materials.
Specifications
{{table-component}}
Gain insight into your IAQ solution and know technical specifications