Wika Capsule Pressure Gauge Model 612.20.100, 0...250 mbar / 0...2500 mmWC, Dual Scale, 4" Dial, 1/2" NPT Lower Mount, 84272197
Technical overview
The WIKA 612.20.100 capsule pressure gauge, belongs to the industrial low-pressure series designed for precise measurement of small positive pressures of dry, non-aggressive gases. A copper alloy capsule measuring system converts the low process pressure into a proportional movement, which is indicated on the large 100 mm dial with 0…250 mbar primary scale and red 0...2500 mmWC secondary scale. The stainless steel case with cam-ring (bayonet) bezel and flat instrument glass window provides robust protection for demanding plant environments. Design and performance follow EN 837-3, with an accuracy of class 1.6 and typical permissible temperature range from -20…+60 °C ambient and up to +100 °C medium. The 1/2" NPT lower Mount process connection simplifies installation on manifolds, impulse lines or panels, making this capsule gauge ideal for ventilation, filter monitoring, level indication using mmWC units and other low-pressure pneumatic applications.
Key Features
- Capsule pressure gauge, industrial series model 612.20.100 for ultra-low pressures
- Dual scale 0…250 mbar primary & secondary scale mmWC (red).
- 1/2" NPT lower Mount process connection
- Copper alloy capsule measuring system for dry, non-aggressive gases
- Stainless steel case with cam-ring (bayonet) bezel and flat glass window
- Accuracy class 1.6 to EN 837-3
- Typical ambient temperature -20…+60 °C, medium temperature up to +100 °C
- High resolution at low pressures for accurate draft and level indication
- Made in Switzerland.
Typical Applications
- Draft and chimney pressure monitoring in boilers, heaters and flues
- Filter and blower differential pressure indication at very low pressures
- Sensitive low-pressure pneumatic control and monitoring
- Level measurement in open tanks using mmWC indication at low ranges
- Laboratory and environmental monitoring of ultra-low gas pressures