712.15.100 Differential pressure gauge, Cryo gauge WIKA

Description

712.15.100 Differential pressure gauge, Cryo gauge WIKA is used in the measurement of differential pressure of gaseous and liquid media.

These high quality 712.15.100 gauges are characterised by their compact and robust design and are mainly used for level measurement on liquid gas tanks.

With 11 different measuring cells, all common cryo-tank sizes are covered. Due to the large overlap of the measuring range of the individual measuring cells, the tank-mounted meter can be adjusted to match a whole range of gases such as Ar, O2, N2 or CO2, with a full deflection over the full 270 degree metre scale. The span setting is externally accessible and does not affect the zero point. The mechanical display and the selectable electrical output signal are calibrated simultaneously and easily.

The optional flange valve manifold with working pressure indication allows central measurement of level and working pressure in one instrument.

The level display can be supplied with an optional, built-in 2-wire 4 … 20 mA transmitter. The level and working pressure contacts and the working pressure transmitter can be retrofitted on site.

The standard 37 mm centre distance between process connections can be adjusted to a custom centre distance of 31 mm or 54 mm with adapters for flange mounting.

 

Features 712.15.100

• Nominal size in mm: 100
• accuracy class: 2.5; selectable: 1.6, 1.0
• the scale range:
  • 60 mbar measuring cell: setting range 0… 40 mbar to 0… 60 mbar
  • 90 mbar measuring cell: setting range 0… 60 mbar to 0… 90 mbar
  • 120 mbar measuring cell: setting range 0… 80 mbar to 0… 120 mbar
  • 165 mbar measuring cell: setting range 0… 110 mbar to 0… 165 mbar
  • 240 mbar measuring cell: setting range 0 … 160 mbar to 0 … 240 mbar
  • Metering cell 330 mbar: Setting range 0… 220 mbar to 0… 330 mbar
  • 480 mbar measuring cell: setting range 0 … 320 mbar to 0 … 480 mbar
  • 660 mbar measuring cell: setting range 0… 440 mbar to 0… 660 mbar
  • Measuring cell 975 mbar: Setting range 0… 650 mbar to 0… 975 mbar
  • Measuring cell 1.350 mbar: Setting range 0… 900 mbar to 0… 1.350 mbar
  • Measuring cell 1.725 mbar: Setting range 0… 1.150 mbar to 0… 1.725 mbar
• Scale:
  • Uniform scale
  • Option:
    • Individual design
• Zero point setting: with adjustable pointer
• Overload safety and max. Working pressure (static pressure): Both sides max. 50 bar
• Connection point: bottom bracket (radial)
• Process link:
  • 2 x G ¼, female, centre distance 37 mm
  • 2 x ¼ NPT, female, centre distance 37 mm
  • others on request
  • Option:
    • Adapter for process connection, see page 6 in the datasheet
• Wetted materials:
  • Cell measuring flanges
    • Model 712.15: Copper alloy CW614N (CuZn39Pb3)
  • Compression spring:
    • Stainless steel 1.4310
  • Separation membrane:
    • NBR
  • Gearbox parts:
    • Stainless steel 1.4301 and 1.4305
• Non-wetted materials
  • Stainless steel housing
  • Stainless steel bayonet ring
  • Movement: stainless steel
  • Aluminium dial, white
  • Pointer: adjustable pointer, black aluminium
  • Window: polycarbonate (PC)
  • Ingress protection to IEC/EN 60529 IP65
  • Mounting: according to the attached symbols ⊕ high pressure, ⊖ low pressure

To view additional options and more technical features, we recommend viewing the attached pdfs. documents under the Documentation section.

 

Areas of use, applications

• filter control
• control and monitoring of pumps
• for gaseous and liquid media which are not highly viscous
• level measurements in closed tanks, in particular in cryotechnology

ELPRO designation: MAN-712.15.100