Setra SRIM2 Room Pressure Monitoring

Name: Setra SRIM2 Room Pressure Monitoring
Brand: Setra Systems
SKU: SRIM2
Availability: InStock

SKU: SRIM2 Category: Room Pressure Monitoring

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The Setra Model SRIM2 is an advanced, non-BACnet room isolation monitor engineered specifically to deliver cost-effective local monitoring and high-integrity alarming for critical low differential pressure spaces. Built upon the proven structural foundation of the SRIM1, this high-performance instrument integrates an on-board dead-ended low differential pressure sensor. Unlike traditional flow-through sensor layouts that can compromise containment, this specialized dead-ended technology establishes an absolute physical barrier, completely preventing contaminated air from passing through the instrument. The SRIM2 acts as a central safety hub for hospital isolation spaces, pharmaceutical cleanrooms, and laboratories by providing comprehensive audible and visual alarming across multiple room parameters—including differential pressure, temperature, relative humidity, and real-time door status. Enclosed in a slim, attractive flush-mount profile, the device features an intuitive three-color backlit LCD status screen and a four-button membrane keypad to simplify menu navigation and alarm configuration, while outputting flexible analog signals for direct integration into standard Building Management Systems (BMS).

Key Product Features

On-Board Dead-Ended Sensor: Variable capacitance sensor core forms an airtight, absolute containment seal that prevents cross-room air migration or contamination leakage through the monitor.
Three-Color Status-Coded Backlighting: Green, Orange, and Red backlit display variables change color dynamically to provide local healthcare or laboratory personnel with immediate visual confirmation of room safety statuses.
Multi-Parameter Alarm Matrix: Provides independent high and low limit trip point controls for pressure, temperature, and humidity, alongside a dedicated digital input for real-time door open status tracking.
User-Configurable Field Outputs: Equipped with an onboard slide switch that enables seamless field selection across standard analog interfaces—including 4-20mA, 0-5 VDC, and 0-10 VDC loops.
Ergonomic Membrane Keypad: The flat, easy-to-clean four-button interface allows for quick field commissioning, sensor calibration, and rapid configuration adjustments without needing specialized software.

Setra Model SRIM2 Technical Specifications
● POWER SECTION
Supply Voltage Requirements	18 to 30 VDC continuous supply line 24 VAC ±10% alternating current utility grid (50 to 60 Hz)
Maximum Power Consumption	VDC Operation: 4 Watts maximum active electrical load VAC Operation: 8 Watts maximum active electrical load
● INPUT SECTION
Pressure Ranges Available	Unidirectional: 0 to 0.05, 0 to 0.1, 0 to 0.25, 0 to 0.5, 0 to 1.0, 0 to 2.5 in. WC Bidirectional: ±0.05, ±0.1, ±0.25, ±0.5, ±1.0, ±2.5 in. WC Pascal Equivalents: Covers spans from ±12.5 Pa up to ±500 Pa (Unidirectional or Bidirectional).
Auxiliary Analog Inputs	Temperature Input (AI1): 0-5 VDC, 0-10 VDC, or 4-20 mA linear channel from an external temperature transmitter. Humidity Input (AI2): 0-5 VDC, 0-10 VDC, or 4-20 mA linear channel from an external relative humidity sensor.
Digital Input Threshold	1 dry-contact digital input channel dedicated for remote door status monitoring (Open / Closed).
Pressure Media Compatibility	Air or similar non-conducting dry gases.
Maximum Overpressure Limit	Withstands differential pressures up to 10 psi (0.7 bar) without sustaining wetted core sensor damage.
● OUTPUT SECTION
BMS Configuration Output	1 continuous analog loop; user field-selectable via an internal hardware slide switch: Current Mode: 4 to 20 mA DC (3-wire circuit design configuration). Voltage Mode: 0 to 5 VDC or 0 to 10 VDC linear retransmission.
Audible Alarming Signal	Onboard multi-frequency buzzer providing direct local audio warning; can be muted or configured via the keypad.
● PERFORMANCE
Transducer Accuracy (RSS)	Low Pressure (≤ 0.1 in. WC): ±0.98% FS Standard Pressure (0.25 in. WC): ±0.49% FS High Pressure (≥ 0.5 in. WC): ±0.22% FS *RSS Baseline includes the mathematical combination of Non-Linearity (BFSL), Hysteresis, and Non-Repeatability.
Non-Linearity (BFSL)	±0.22% FS, ±0.49% FS, or ±0.98% FS depending strictly on the selected pressure span.
Hysteresis Factor	±0.1% FS constant.
Non-Repeatability Margin	±0.05% FS constant.
Zero/Span Setting Tolerance	±0.5% FS standard (±1.0% FS for ultra-low pressure ranges).
Thermal Error Coefficients	Compensated Temperature Envelope: 40 to 120°F (4.5 to 50°C). Thermal Drift Offset: ±0.02% FS per °F typical baseline shift.
● PHYSICAL & MECHANICAL
Installation Profile	Flush wall mount mounting layout; designed to secure cleanly into an industrial electrical back box enclosure.
Electrical Termination	On-board multi-position industrial screw terminal block.
Operator Input Interface	Four-button wipe-down smooth membrane keypad array for safe clinical sanitization.
Net Hardware Weight	10.7 ounces (303 grams) total module mass.