Dwyer 2000-200CM : Magnehelic Differential Pressure Gage, Range 0-200 cm w.c., Minor Divisions 5.0, 4" (101.6 mm) Diameter Dial Face, +/-2% Accuracy
The Series 2000 Magnehelic Differential Pressure Gauge is the industry’s most trusted and widely used low-pressure gauge, offering high accuracy, durability, and ease of installation. This patented differential pressure gauge is designed to measure air and non-combustible gases, ensuring precision in HVAC systems, clean rooms, hospital isolation rooms, and industrial applications.
Key Benefits & Features
- Precision Measurement: Frictionless Magnehelic® movement ensures highly accurate readings for positive, negative, or differential pressure
- Durability & Longevity: Shock, vibration, and overpressure-resistant with a 5-year warranty for long service life.
- Installation Flexibility: IP67-rated weatherproof housing with diecast aluminum construction, ideal for harsh environments.
- Low Maintenance: No external power required for operation, reducing system costs and complexity.
- Wide Application Range: Suitable for monitoring air filters, ducts, clean rooms, hospitals, dust collectors, fan pressure, fume exhaust systems, and more.
- Easy-to-Read Dial: The 4" dial face with a clear acrylic cover provides undistorted viewing, even from a distance.
Applications of the Series 2000 Magnehelic Gauge
- Filter Monitoring in HVAC Systems: Quickly detects pressure drops across filters, signaling when maintenance or replacement is needed.
- Industrial Dust Collectors: Monitors pressure differentials to determine when filter cleaning or replacement is necessary, preventing system failures.
- Hospital Isolation Rooms: Maintains proper negative pressure to prevent pathogen spread in medical facilities.
- Clean Rooms & Laboratory Environments: Ensures required positive pressure conditions for contamination control.
- Duct & Room Pressure Monitoring: Measures building pressurization and airflow to maintain energy efficiency and regulatory compliance.
- Blower & Fan Performance: Detects inefficiencies in blower and fan systems, allowing proactive maintenance.
Technical Specifications
Note: For applications with high cycle rate within gage total pressure rating, next higher rating is recommended. See Options page.
| Service Media: | Air and non-combustible, compatible gases (natural gas option available). Note: May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi. |
| Wetted Materials | Consult factory. |
| Housing | Die cast aluminum case and bezel, with acrylic cover, exterior finish is coated gray to withstand 168 hour salt spray corrosion test. |
| Accuracy | ±2% of FS (±3% on -0, -100 Pa, -125 PA, -10 mm and ±4% on -00, -60 Pa, -6 mm ranges), throughout range at 70°F (21.1°C). |
| Pressure Limits | 20 in Hg to 15 psig (-0.677 bar to 1.034 bar); MP option; 35 psig (2.41 bar), HP option; 80 psig (5.52 bar). |
| Enclosure Rating | IP67. |
| Overpressure | Relief plug opens at approximately 25 psig (1.72 bar), standard gages only. See Overpressure Protection note on catalog page. |
| Temperature Limits | 20 to 140°F (-6.67 to 60°C). -20°F (-28°C) with low temperature option. |
| Size | 4″ (101.6 mm) diameter dial face. |
| Mounting Orientation | Diaphragm in vertical position. Consult factory for other position orientations. |
| Process Connections | 1/8″ female NPT duplicate high and low pressure taps - one pair side and one pair back. |
| Weight | 1 lb 2 oz (510 g); MP and HP 2 lb 2 oz (963 g). |
| Standard Accessories | Two 1/8″ NPT plugs for duplicate pressure taps, two 1/8″ pipe thread to rubber tubing adapters and three flush mounting adapters with screws. (Mounting and snap ring retainer substituted for three adapters in MP and HP gage accessories). |
| Compliance | Meets the technical requirements of EU Directive 2011/65/EU (RoHS II) |
Datasheets
 | Dwyer Series 2000 Catalog Page |
| Instruction Manual - English |
| Series 2000 Value Propositions Flyer |
- Pressure Type:
- Differential Pressure
- Series:
- 2000 Magnehelic
- Range:
- CM of Water
