Setra SRCMR25WBA2H2S Pressure Transducer

The Setra SRCMR25WBA2H2S Pressure Transducer is a professional-grade differential pressure monitor engineered for critical environments like isolation rooms, pharmacies, and operating suites. This high-precision room pressure monitor features an on-board dead-ended capacitive pressure sensor, which offers a ±0.25 in. WC bi-directional range and ±0.5% FS accuracy. Unlike flow-through designs, its capacitive sensing technology prevents cross-contamination between the monitored room and reference space while maintaining long-term stability without signal drift. This unit is BACnet MS/TP compatible, allowing for seamless integration into Building Management Systems (BMS). The hardware includes a 4.3-inch color touchscreen for intuitive setup, a flush-mount design compatible with standard triple-gang electrical boxes, and field-selectable signal outputs (4-20 mA, 0-5 VDC, or 0-10 VDC). With support for two analog inputs (temperature/humidity) and a digital door switch input, this low differential pressure transducer ensures full compliance with stringent facility monitoring requirements.

• Dead-Ended Sensing: Eliminates air flow through the sensor, preventing particulate buildup and ensuring zero cross-contamination.
• Reduced Commissioning Time: The unit-cloning feature via USB allows you to copy configurations across multiple rooms in minutes.
• Field Flexibility: Includes jumper-selectable analog outputs and user-definable engineering units (Pa or "WC) for immediate on-site adjustments.
• Enhanced Visual Feedback: A high-resolution color touchscreen provides instant status banners and clear pressure relative to setpoint indicators.
• Simplified Wiring: Features removable terminal blocks and mounts directly into off-the-shelf triple-gang double-deep electrical boxes.

How do I resolve a "Room Gray" status on the secondary monitor?
Ensure the secondary room is enabled in the menu and that the BACnet MS/TP MAC addresses are correctly assigned without duplicates on the network trunk.

What is the proper plumbing for a bi-directional ±0.25" WC application?
Connect the high port to the monitored room and the low port to the reference corridor; the Setra SRCMR25WBA2H2S will track both positive and negative pressure deviations relative to the zero-point.

Why is the unit not triggering an audible alarm when pressure drops?
Check if the "Standby" or "No Isolation" mode is active, as these modes suppress alarms. Verify that the audible alarm is enabled in the administrative settings.

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.