WIKA, Model A-10 Pressure transmitter

Pressure gauge and thermometer are suitable for the various pressure and temperature measurement applications. We offer solutions for gas and liquid measurements. The range covers capsule, plate or Bourdon-tube pressure gauges and measuring instruments made from various materials with versions extending from standard models to stainless steel versions, for use in corrosive environments, and electronics measuring equipment.

The pressure transmitters of the 4LC series use the chip-in-oil developed by KELLER, uniting a pressure measuring cell, digital temperature compensation and signal processing in a compact housing made of stainless steel or Hastelloy. The transmitters are extremely resistant to environmental influences and deliver compensated measurement results as an analog, ratiometric 0,5...4,5V output signal over a wide temperature range.

The pressure transmitter illustrated here measures differences in pressure between the two connections of the measuring element. Pressure differences can be measured with respect to a reference pressure, such as atmosphere, or to the command variable of a regulation system. Equally, however, it is possible to measure pressure differences within systems that have a high static pressure. One practical example of this would be measuring a flow rate by determining the pressure drop occurring across a metering diaphragm. The differential pressure transmitter measures in both directions and can therefore, for instance, be used on double-acting hydraulic cylinders. Its construction permits it to be used with liquid or gaseous media. Venting holes simplify installation. The robust design and the use of stainless steel make it possible to use the pressure transmitter under tough operating conditions.

The high-pressure transmitter type DMP 304 has been especially designed for applications with highest demand on precision and reliability. DMP 304 series is based on a compensated strain gauge, bonded onto a stainless steel diaphragm. Due to the rugged stainless steel housing usage under extreme conditions and in IS-required areas is no problem. Features: — nominal pressure: 0 ... 2000 bar up to 0 ... 6000 bar — accuracy: 0.5 % (opt. 0.25 %) FSO — adjustability of offset and span via front sided potentiometers — pressure port 9/16" UNF — 80 % calibration signal with MIL / Bendix plug Optional Features: — IS-version Ex ia = intrinsically safe for gases — pressure port M20 x 1.5 and M16 x 1.5 — accuracy according to IEC 60770: 0.25% FSO