Capsule pressure gauge, copper alloy Stainless steel case
Model: 612.20
- Zero point correction in front
- Case from stainless steel
- Robust design and ingress protection IP54
- Low scale ranges from 0 … 6 mbar to 0 … 600 mbar or 0 … 2.4 inH2O to 0 … 240 inH2O
- Responsive after-sales service / Customizable /
- High quality / One-year warranty
- The image is for reference; the actual product willbe based on your custom specifications.
Description
The WIKA model 612.20 capsule pressure gauge is designed for very low pressure and vacuum measurement, utilizing a proven capsule measuring element to detect even minimal pressure changes with high accuracy. Featuring a stainless steel case and a copper alloy measuring system, it offers robust construction and reliable long-term performance. Front zero adjustment allows easy on-site calibration. With a wide selection of low pressure ranges and units such as mbar, kPa, and inH₂O, the 612.20 is ideal for medical technology, vacuum applications, environmental monitoring, laboratories, filter monitoring, and ventilation systems, providing dependable and precise low-pressure measurement.
Specifications
| Connection location | ■ Lower mount (radial) ■ Lower back mount ■Centre back mount (only for NS 63 [2 ½"]) |
|---|---|
| Nominal size | ■Ø 63 mm [2 ½"] ■Ø 100 mm [4"] ■Ø 160 mm [6"] |
| Scale ranges | 0 ... 6 mbar to 0 ... 600 mbar or 0 ... 2.4 inH2O to 0 ... 240 inH2O and the vacuum and +/- scale ranges ensure the measuring ranges required for a wide variety of applications. |
| Accuracy | EN 837-3: ■Class 1.6 ■Class 1.0 ASME B40.100: ■ ±2 % │ ±1 % │ ±2 % of measuring span (grade A) ■ ±1 % of measuring span (grade 1A) |
| Process connection | Standard: ■ EN 837-3 ■ ISO 7 ■ ANSI/B1.20.1 Size: EN 837-3: ■G ⅛ B, male thread ■G ¼ B, male thread ■G ½ B, male thread ■M20 x 1.5, male thread ISO 7: ■R ¼, male thread ■R ½, male thread ANSI/B1.20.1: ■¼ NPT, male thread ■½ NPT, male thread Restrictor: ■Without ■∅ 0.5 mm [0.02"], copper alloy ■∅ 0.3 mm [0.012"], copper alloy Material (wetted): ■Capsule element: Copper alloy ■Sealing: NBR ■Process connection: Copper alloy |
| Case | Design: ■Without blow-out device ■With blow-out device in case back (only for NS 100 [4"] and NS 160 [6"]) Material: ■Stainless steel Ring: ■Bayonet bezel, stainless steel |
| Window | Instrument glass |
| Dial | Scale layout: ■ Single scale ■Dual scale Scale colour: ■Single scale: Black ■Dual scale: Black/red Serial number: ■Without ■Consecutive number * ... * Material: ■Aluminium Special scale: ■Other scales or customer-specific dials, e.g. with red mark, circular arcs or circular sectors, on request |
| Pointer | Instrument pointer: ■Aluminium, black Mark pointer/drag pointer: ■Without ■Red mark pointer on dial, fixed ■Red mark pointer on window, adjustable (only available for NS 100 [4"] and NS 160 [6"]) ■Red drag pointer on window, adjustable |
| Movement | Copper alloy |
| Ambient temperature | -20 ... +60 °C [-4 ... +140 °F] |
| Medium temperature | -20 ... +100 °C [-4 ... +212 °F] ≤ 80 °C [≤ 176 °F] with NS 160 [6"] |
| IP rating | ■ IP54 ■ IP55 ■ IP65 |