Series 2000 Magnehelic Differential Pressure Gages
Product Introduction
The Series 2000 Magnehelic Differential Pressure Gages are
versatile, mechanical instruments designed for precise low-pressure
measurement in air and noncorrosive gas systems. With 81 models and
27 options, they indicate positive, negative (vacuum), or
differential pressure without requiring power—making them ideal for
isolation/hospital environments, temporary setups, and applications
where electrical connectivity is limited. Leveraging Dwyer’s
frictionless Magnehelic® movement, these gages offer accuracy
within 1% of full scale (with the -HA High Accuracy option),
resisting shock, vibration, over-pressures, and featuring an IP67
weatherproof rating. A mirrored scale overlay and 6-point
calibration certificate are included with the -HA option at no
extra cost.
Product Features
Mechanical Operation:
No power required for operation, suitable for off-grid or temporary
installations.
Direct mechanical indication of pressure via frictionless
Magnehelic® movement.
Accuracy & Range:
Standard accuracy: ±2% FS; -HA option achieves ±1% FS for critical
measurements.
Wide pressure range options (e.g., 0–0.1" w.c. to 0–250" w.c.)
across 81 models.
Environmental Resistance:
IP67 weatherproof rating; resists dust, water, shock, and
vibration.
Over-pressure tolerance: Suitable for pressures <35 psi (with
Buna-N diaphragm for hydrogen applications).
Calibration & Certification:
-HA models include mirrored scale overlay to reduce parallax error.
NIST calibration and 6-point certification available via Product
Configurator.
Versatile Applications:
Hospital isolation wards, clean rooms, and temporary medical units.
HVAC duct pressure monitoring, filter status indication, and
building pressurization.
Cost-Effective Design:
Low-cost alternative to electronic gauges without compromising
reliability.
Simple installation and maintenance-free operation.
Technical Specifications
| Parameter | Value |
| Accuracy | Standard: ±2% FS; -HA: ±1% FS |
| Pressure Range | Varies by model (e.g., 0–0.1" w.c. to 0–250" w.c.) |
| Power Requirement | None (mechanical operation) |
| Environmental Rating | IP67 (dust-tight and water-resistant) |
| Wetted Materials | Aluminum, stainless steel, and Buna-N (optional for hydrogen) |
| Size | 4.5" (114 mm) dial diameter |
