DIFFERENTIAL PRESSURE GAUGES with magnetic piston
MDH-90 series
*APPLICATIONS
‧ Filter plants
‧ Pump monitoring
‧ Cooling circuits
‧ Pipeline systems
*DESCRIPTION
Pressure p1 and p2 are given in the (+) and (-) measuring medium chambers separated by magnetic piston. The differential pressure causes axial movement of the piston supported by a measuring range spring. A magnetic ring mounted on the instrument pointer follows the movement of the magnetic piston so that each piston position is
appropriated to a defined pointer position. This design ensures mechanical separation of the measuring system and the case, and eliminates external leakage. The volume flow from (+) to (-) media chambers is minimized by the constructive design and will not interfere with the process. For applications for heavily contaminated media, a "separation diaphragm" assembled on (+) side is suitable and this appliance isolates completely the volume flow from (+) to (-) media chambers.
*SPECIFICATIONS
Dial diameter：3.5" (90mm)
Case：Die-casting aluminum, IP54
Lens：Acrylic plastic, snap-fit window
Dial：White aluminum with dual scale：outer scale black(bar), inner red(psi)
Measuring Principle：Magnetic piston & compression spring, stainless steel 316 and ferrite
Movement：Stainless steel
Pointer：Aluminum, black
Connection：
Female thread 1/4" PT(BSPT) / NPT / PF(BSP), stainless steel 316
Entry on the right and left in-line
Accuracy：±3% F.S.；±5% F.S. if separation diaphragm assembled
Temperature Limit：medium ≦+100℃；ambient 0 to 60℃
Static Pressure：100 kg/cm2 (bar)
Differential Pressure Range：0 / 1 ~ 0 / 10 kg/cm2 (bar) (other units are available)
Optional Extra：
Reed contacts
Separation diaphragm assembled on (+) side
