Images are representations only.
Capsule Pressure Gauge, Copper Alloy - 612.20
Brand: WIKA Alexander Wiegand SE & Co. KGThe model 612.20 capsule pressure gauge is based upon the proven capsule measuring system. The capsule measuring principle is particularly suitable for low pressures.
On pressurisation, the expansion of the capsule element, proportional to the incident pressure, is transmitted to the movement and indicated
Features- Low pressure series
- Copper alloy wetted parts & stainless steel case
- Capsule pressure gaug
Specifications
Design
- EN 837-3
Size
- 2-1/2”, 4” & 6” (63 mm, 100 mm & 160 mm)
Accuracy Class
- ± 1.5 % of Span
Ranges
- Or all other Equivalent vacuum or compound Ranges
- Size 6” (160 mm): 0 ...2.5”H₂O (4 mbar) to 0 ...250”H₂O (600 mbar)
- Size 4” (100 mm): 0 ...4”H₂O (10 mbar) to 0 ...250”H₂O (600 mbar)
- Size 2-1/2” (63 mm): 0...10”H₂O (25 mbar) to 0 ...250”H₂O (600 mbar)
Connection
- Size 4” & 6” (100 mm&160 mm): 1/4” NPT or 1/2” NPT Lower Mount (LM) or Lower back ount (LBM)
- Size 2-1/2” (63 mm): 1/4” NPT Lower Mount (LM) or Center Back Mount (CBM)
- Copper Alloy
Capsule Element
- Material: Copper Alloy
Movement
- Copper Alloy, Nickel-silver pinion gear and shaft. Zero Adjustment Screw on dial
Dial
- White Aluminum with Black Lettering
Pointer
- Black Aluminum (Zero Adjust on Dial. Must remove window to access)
Case
- 304 Stainless Steel with Stainless Steel bayonet Ring
Weather Protection
- Weather resistant (NEMA 3 / IP54)
Window
- Flat Window Glass
Window Gasket
- Buna-N
Working Range
- Fluctuating: 0.9 x Full Scale Value
- Steady: Full Scale Value
Operating Temperature
- Media: Max. 212° F (+100° C)
- Ambient: -4° F to 140° F (-20° C to 60° C)
- Maximum 176° F (+80° C) for 4” & 6” LBM
Temperature Error
- Additional error when temperature changes from reference temperature of 68° F (20° C) +0.6 % of Span for every 18° F (10° K) rising or falling.
- Low pressure pneumatic systems
- Suitable for fluid medium, gaseous or dry that does not corrode copper all
