547-103B Siemens Room Pressure Monitor
$3,098.81
RPM SM P1 +/-.25″WC(62.5PA).25%FS; Siemens Room Pressure Monitor (RPM), P1, +/- 0.25″ WC (62.5 Pa), 0.25% Full Scale
Siemens 547-103B Room Pressure Monitor – ±0.25″ WC (62.5 Pa), P1 Accuracy
Overview
The Siemens 547-103B Room Pressure Monitor (RPM) is built for critical, low differential pressure monitoring in environments where precise room pressurization is essential. It supports both positive and negative room pressure, features a touchscreen display, local visual and audible alarms, and can be configured to meet CDC, cleanroom, pharmaceutical, or hospital isolation room guidelines. Designed for indoor use, it delivers high accuracy and reliable performance.
Specifications
| Specification | Details |
|---|---|
| Brand / Model | Siemens 547-103B |
| Nominal Monitoring Range | ±0.25 inches of water column (±62.5 Pascal) |
| Accuracy / Full Scale (FS) | ±0.25% FS (P1 version) |
| Detection / Protocol | Protocol “P1” monitoring mode |
| Operating Temperature | 32°F to 120°F (0°C to 50°C) |
| Storage Temperature | -20°F to 160°F (-30°C to 70°C) |
| Humidity Range | 5% to 95% RH, non-condensing |
| Overpressure | Up to ±15″ WC for smaller ranges; designed to handle transient surges |
| Outputs Available | Selectable outputs: 0-5 V DC, 0-10 V DC, 4-20 mA |
| Electrical Supply | 18-32 Vac, 50/60 Hz |
| Display / Interface | Touchscreen LCD; visual status bar graph; colored LED indicators |
| Alarm Features | Local audible alarm; visual status (red/green); variable delay timer |
| Relay / Communication | SPST relay for alarm; optional communications protocols consult settings |
| Physical Dimensions | Height ~ 8.0 in (203 mm); Width ~ 5.1 in (130 mm); Depth ~ 1.8 in (46 mm) |
| Weight | Approximately 1.5 lbs (680 g) |
| Mounting / Housing | Indoor-rated, mounting to 4 × 4-inch electrical box with plaster ring |
| Certifications & Compliance | CE, RoHS, and applicable safety/privacy guidelines for indoor control equipment |
Features & Benefits
-
Touchscreen display plus visual and audible indicators make status immediately visible
-
Supports both positive and negative room pressure monitoring, useful for isolation rooms or labs
-
High accuracy ±0.25% ensures tight control and compliance with room pressure standards
-
Multiple output options (voltage or current) allow easy integration into building control systems
-
Local alarm relay and variable delay help avoid nuisance alarms while ensuring safety
Applications
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Monitoring room pressurization in hospitals (isolation wards, operating rooms)
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Cleanroom environments, pharmaceutical or biotech facilities
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Research laboratories requiring precise differential pressure control
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Any application where maintaining pressure relative to adjacent areas (e.g. corridors or ante rooms) is critical
Installation & Maintenance Notes
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Mount indoors in an area free from direct drafts, doors opening, or HVAC supply conflicts
-
Use proper ¼-inch tubing for pressure sensing, ensure strain relief on tubing to prevent damage
-
Power supply must be 18-32 Vac; observe correct wiring for outputs (voltage vs current)
-
Configure and calibrate zero/span during install; periodically verify accuracy
-
Maintain cleanliness of pressure ports and filters; avoid contamination and moisture ingress
Warranty & Quality Assurance
-
Manufactured by Siemens under strict quality control standards
-
Complies with indoor measurement safety and accuracy standards
-
Warranty valid when installed per manufacturer guidelines and used within specification
| Weight | 3 lbs |
|---|---|
| Dimensions | 11 × 10 × 3 in |
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