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MP Series
Manomètres à membrane
SPECIFICATIONS TECHNIQUES
• Nominal sizes
- 100 and 150.
• Models
- MP 319/320/321: ranges included between 0,6 and 25 bar;
- MP 419/420/421: ranges included between 16 and 400 mbar.
• Casing
- case and ring in AISI 304 stainless steel (AISI 316 on request - option V61) with bayonet bezel.
• Protection degree (according to EN 60529)
- IP 55 for dry execution;
- IP 65 (option V66 and V72).
• Window
- glass for dry execution;
- methacrylate for liquid filled execution;
- laminated safety glass (on request - option V17).
• Blow-out device
- blow out plug.
• Pressure connection (according to EN 837-3)
o G 1/2 B (1/2 Gas or BSP) or 1/2-14 NPT EXT (1/2 NPT) thread (MP 319/419);
o flanged connection as per UNI/DIN and ASME standards (see tables MP 1 and 2 at page MP06):
- flange with through holes (MP 320/420);
- flange with threaded blind or through holes (MP 321/421).
• Pressure connection material
- AISI 316L stainless steel, standard;
- AISI 316L stainless steel with P.T.F.E. coating;
- special materials (see specific heading).
• Pressure element
- AISI 316Ti stainless steel diaphragm;
- diaphragm coated (see specific heading).
• Movement
- stainless steel.
• Ranges (according to EN 837-3)
o Graduation:
- pressure gauges: 0 ÷16; 0 ÷25; 0 ÷ 40; 0 ÷ 60; 0 ÷ 100; 0 ÷ 160; 0 ÷ 250; 0 ÷ 400; (unit of pressure mbar); 0 ÷ 0,6; 0 ÷ 1; 0 ÷ 1,6; 0 ÷ 2,5; 0 ÷ 4; 0 ÷ 6; 0 ÷ 10; 0 ÷ 16; 0 ÷ 25 (unit of pressure bar);
- vacuum gauges: -16 ÷ 0; -25 ÷ 0; -40 ÷ 0; -60 ÷ 0;
-100 ÷ 0; -160 ÷ 0; -250 ÷ 0; -400 ÷ 0; (unit of vacuum mbar); -1 ÷ 0 (unit of vacuum bar);
- compound gauges: -1 ÷ 0,6; -1 ÷ 1,5; -1 ÷ 3; -1 ÷ 5;
-1 ÷ 9; -1 ÷ 15; -1 ÷ 24 (unit of pressure bar) - on request (unit of pressure mbar). (divisions as per table C1 at page P08)
- other graduations not normalized for single or double range (on request).
o Unit of pressure:
- mbar, bar, kPa, kg/cm2 and psi for single or double range.
o Scale angle:
- 270 °.
• Working pressures (referred to full scale deflection)
- steady from 1/10 to 3/4;
- fluctuating from 1/10 to 2/3.
• Over-pressures (referred to full scale deflection)
- 115% standard (occasionally allowed);
- special, on request only – option V28.
• Pointer
- aluminium with micrometric adjustment for dry execution;
- aluminium not adjustable for filled execution.
• Dial
- white aluminium with black figures (for dial modifications see available options).
• Accuracy (according to EN 837-3)
- class 1,6 (± 1,6% of full scale deflection).
note: accuracy indicated on the pressure gauge does not consider the interference of an eventually applied electric contact.
• Ambient temperature
- -20 ÷ +60 °C.
• Thermal drift
out of the optimum ambient temperature values included within +15 ÷ +25 °C, the thermal drift affects the instruments accuracy as follows:
- 0,4% every 10 °C for models MP 319/320/321;
- 0,8% every 10 °C for models MP 419/420/421.
• Operating temperature
- -20 ÷ +100 °C standard execution;
- -20 ÷ +150 °C execution with special gaskets (except compound pressure gauges) (option V74);
- -20 ÷ +100 °C P.T.F.E. coated diaphragm.