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Calibrations (Accredited laboratory) Maintenance - Repairs Department of Cleanroom Validation (Lloyd's Register Certified)) IQ/OQ/PQ Temperature/ Humidity Mapping Occupational Health & Safety Measurements Validation Studies Vibration and Noise studies Laboratory OrganizationPQ Series
PQ Series
Square casing pressure gauges
TECHNICAL SPECIFICATIONS
• Nominal sizes
- 96x96 and 144x144.
• Casing
- back plate in AISI 304 stainless steel sheet and plastic front rim.
• Window
- methacrylate.
• Blow-out device
- rubber plug.
• Pressure connection (according to EN 837-1)
- AISI 316L stainless steel with Gas (BSP) or NPT thread as per PQ table F dimension, otherwise only on request, different from those indicated.
• Pressure element
- AISI 316Ti stainless steel.
• Welding
- TIG.
• Movement
- stainless steel.
• Ranges (according to EN 837-1)
o Graduation:
- pressure gauges: 0 ÷ 0,6; 0 ÷ 1;0 ÷ 1,6; 0 2,5; 0 ÷ 4; 0 ÷ 6; 0 ÷ 10; 0 ÷ 16; 0 ÷ 25; 0 ÷ 40; 0 ÷ 60; 0 ÷ 100; 0 ÷ 160; 0 ÷ 250; 0 ÷ 400; 0 ÷ 600;
- vacuum gauges: -1 ÷ 0;
- compound gauges: -1 ÷ 0,6; -1 ÷ 1,5; -1 ÷ 3; -1 ÷ 5;
-1 ÷ 9; -1 ÷ 15; -1 ÷ 24; (divisions as per table C1 at page P08)
- other graduations not normalized for single or double range (on request).
o Unit of pressure
- bar, kPa, MPa, kg/cm2 and psi for single or double range.
o Scale angle:
- 270°.
• Working pressure (referred to full scale deflection)
- steady from 1/10 to 3/4;
- fluctuating from 1/10 to 2/3.
• Over-pressures (occasionally allowed)
- 130% of full scale value.
• Pointer
- aluminium not adjustable.
• Dial
- white aluminium with black figures (for dial modifications see available options).
• Accuracy (according to EN 837-1)
- class 1 (± 1% of full scale deflection).
note 1: accuracy indicated on the pressure gauge does not consider the interference of an eventually applied electric contact.
note 2: diaphragm seal affects the accuracy of the instruments according to table FP 1 at page FP03.
• Ambient temperature
- -10 ÷ +60 °C.
• Operating temperature
- -10 ÷ +120 °C.