The sensing element is an elastic diaphragm, with concentric corrugations that drives the amplifying movement through a ball-joint. They are designed to measure pressure or vacuum of viscous, sedimentous, crystallisable or corrosive fluids. Compared to the bourdon tube system they are more robust and are better able to withstand overpressure or aggressive fluids.
Thông số kỹ thuật
Elastic element : AISI 316 st.st. diaphragm for
pressure ranges ≤ 2.5 bar; carbon steel diaphragm
for pressure ranges ≥ 4 bar.
Diaphragm gasket : PTFE.
Case : stainless steel.
Ring : st.st., bayonet lock.
Window : glass.
Movement : stainless steel.
Dial : aluminium, white with black marking.
Pointer : aluminium.
Window gasket : EPDM
Blow out vent : EPDM.
PMS100..., PMS150..., carbon steel PTFE
coated version
Accuracy class : 1.6 as per EN 837-3.
Ambient temperature : -25...+65°C.
Process temperature : max. +100°C.
Overpressure limit : 25% of full scale value.
Process connection : zinc plated steel.
Process connection : zinc plated steel
PTFE coated.
Elastic element : diaphragm PTFE coated
Other characteristics : as PMS100..., PMS150...
Xem thêm: Đồng hồ đo áp suất PMX100 Rueger