DWYER MAGNEHELIC PRESSURE GAUGE KILOPASCALRANGE 0-3 2000-1 KPA C MAX 100KPA

DWYER MAGNEHELIC PRESSURE GAUGE KILOPASCALRANGE 0-3   2000-1 KPA C MAX 100KPA

The Dwyer Magnehelic® is a highly sensitive, differential pressure gauge used to measure very low air or gas pressures. It is a classic, industry-standard instrument known for its durability and accuracy.

Its primary working principle is a simple yet effective diaphragm and magnetic linkage system that moves the needle with very little friction, making it ideal for low-pressure applications like measuring filter pressure drop, fan pressure, draft, or airflow in HVAC systems, cleanrooms, and industrial settings.

Detailed Breakdown of Your Specific Model’s Specifications

Based on the text you provided, here is what each part means:

1. Dwyer Magnehelic® Pressure Gauge:

   • Product Type: This is the brand and model name.

2. Kilopascal:

   • Unit of Measure: The gauge’s scale is calibrated in kilopascals (kPa), a metric unit of pressure.

   • Conversion: 1 kPa ≈ 0.145 psi (pounds per square inch).

3. Range 0-3 / 2000-1 kPa:

   • This is the most important specification and indicates a DUAL-RANGE scale.

   • Primary Scale (0-3 kPa): This is the main, easy-to-read scale for taking precise measurements. The needle will point to a value between 0 and 3 kPa.

   • Secondary Scale (0-2000 Pascals): This is an alternate scale on the same dial. Since 1 kPa = 1000 Pa, the 0-3 kPa range is equivalent to 0-3000 Pascals. The “2000-1” likely means the scale is marked up to 2000 Pa, with the main divisions being every 100 Pa (hence the “-1” indicating 100 Pa increments). This provides flexibility for users who prefer to read in Pascals.

4. Model Number: C

   • In the Dwyer numbering system, the suffix “C” typically refers to the type of case and connection. A “C” model usually indicates a standard, drawn steel case with a black enamel finish and a single rear pressure connection (often a 1/8″ NPT female port). The other side of the diaphragm is vented to the atmosphere, meaning it measures gage pressure (pressure relative to atmospheric pressure).

5. Max 100 kPa:

   • Maximum Overpressure Safety Rating. This is a critical safety specification. It means the gauge diaphragm can withstand up to 100 kPa of pressure from one side without rupturing or suffering permanent damage.

   • This is NOT the measurement range. You should only measure pressures within the 0-3 kPa range. The 100 kPa rating protects the instrument from accidental spikes or surges in the system.

Summary of Your Gauge’s Capabilities