HSLZ piston-type pressure vacuum gauge
Product Description
The gas piston-type pressure vacuum gauge is a high-accuracy pressure standard device used for calibrating vacuum gauges and pressure gauges. It uses high-purity nitrogen as the working medium.
During the measurement process, because the viscosity of the working medium is reduced, the additional error introduced is smaller, further improving the sensitivity of the piston, resulting in smaller fluctuations in the output standard pressure value and better repeatability.
Specifications
- Main use
- High-accuracy pressure standard for verifying vacuum gauges and pressure gauges
- Reference standard
- JJG1086-2013 (Gas Piston Pressure Gauges); JJG99-2006 (Weights); Verification Certificate issued per unit
- Pressure range
- HSLZ-25 (-0.1 ~ 0.25); HSLZ-35 (-0.1 ~ 0.35); HSLZ-40 (-0.1 ~ 0.4); HSLZ-60 (-0.1 ~ 0.6); HSLZ-70 (-0.1 ~ 0.7); HSLZ-100 (-0.1 ~ 1) MPa
- Accuracy
- Class 0.05 / 0.02 / 0.01 / 0.005
- Medium
- High-purity nitrogen (low viscosity → smaller additional error, higher sensitivity, better repeatability)
- Pressure units
- MPa; nominal piston area 5 cm²; base + piston 0.5 kg generating 0.01 MPa
- Key functions
- Piston rod & cylinder in tungsten carbide (high strength/hardness, low thermal expansion, long life); long piston rotation time, low friction; highest/lowest scale lines; weights corrected for pressure-deformation coefficient & local gravity; optional real-time system-pressure display
- Measurement functions
- Weight material: carbon steel (Class 0.05) / non-magnetic stainless steel (Classes 0.02 / 0.01 / 0.005); dedicated weight set per model
- Process connection
- M20×1.5 interface thread
- Dimensions
- 660 × 500 × 450 mm (L × W × H)
- Weight
- HSLZ-25 45 kg; HSLZ-35 50 kg; HSLZ-40 52 kg; HSLZ-60 55 kg; HSLZ-70 60 kg; HSLZ-100 85 kg
Product Details
Product Overview
Gas PistonTypePressure Vacuum Gauge is a high-accuracy pressure standard that can calibrate vacuum gauges and pressure gauges. Using high-purity nitrogen as the working medium, during the measurement process, the additional error introduced due to the reduced viscosity of the working medium is smaller, further improving the sensitivity of the piston, making the fluctuation of the output standard pressure value smaller and the repeatability better.
Measuring range
l(-0.1-0.25) MPa, (-0.1-0.35), MPa(-0.1-0.4) MPa, (-0.1-0.6) MPa, (-0.1-0.7) MPa, (-0.1-1) MPa
Accuracy class
lClass 0.05; Class 0.02; Class 0.01; Class 0.005
Piston system material
lPiston rod: tungsten carbide
lPiston cylinder: tungsten carbide
Weight material
lCarbon steel (Class 0.05); non-magnetic stainless steel (Class 0.02; Class 0.01; Class 0.005);
Working medium
lHigh-purity nitrogen
Dimensions
lLengthX Width X Height (660 X 500 X 450) mm
Product Features
lUsing high-purity nitrogen as the working medium, during the measurement process, because the viscosity of the working medium becomes smaller, the additional error introduced is smaller, further improving the sensitivity of the piston, making the fluctuation of the output pressure value smaller and the repeatability better.
lThe piston rod and piston cylinder are made of tungsten carbide, which has the characteristics of high strength, high hardness and low temperature linear expansion coefficient, improving the wear resistance of the piston and extending the life of the piston.
lThe piston rotates for a long time, the friction between the piston cylinder and the rod is small, and the output standard pressure value is more accurate.
lIt has real-time display of system pressure, and users can intuitively grasp the speed of pressure increase and decrease (optional function).
lThe change of piston position is compared according to the scale lines, with the highest scale line and the lowest scale line set.
lThe weights have been corrected for pressure deformation coefficient and local gravitational acceleration.
lAll indicators fully comply withJJG1086-2013 "Gas Piston Pressure Gauge",JJG99-2006 "Weights" national metrological verification regulations, and each unit can issue a "Verification Certificate".
Model Configuration
ModelNumber | HSLZ-25 | HSLZ-35 | HSLZ-40 | HSLZ-60 | HSLZ-70 | HSLZ-100 | |
Measurement Range(MPa) | -0.1～0.25 | -0.1～0.35 | -0.1～0.4 | -0.1～0.6 | -0.1～0.7 | -0.1～1 | |
Nominal upper limit(MPa) | 0.25 | 0.35 | 0.4 | 0.6 | 0.7 | 1 | |
Nominal lower limit(MPa) | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | |
Measurement upper limit(MPa) | 0.25 | 0.35 | 0.4 | 0.6 | 0.7 | 1 | |
Measurement lower limit(MPa) | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | |
Nominal piston area(cm2) | 5 | 5 | 5 | 5 | 5 | 5 | |
Bottomplate | Nominal mass(kg) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
Generated | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | |
Special | Nominal mass(kg) | 0.25；0.5；2.5；5/0.25；0.5；1 | 0.25；0.5；2.5；5/0.25；0.5；1 | 0.25；0.5；2.5；5/0.25；0.5；1 | 0.25；0.5；2.5；5/0.25；0.5；1 | 0.25；0.5；2.5；5/0.25；0.5；1 | 0.25；0.5；2.5；5/0.25；0.5；1 |
Generated | 0.005；0.01；0.05；0.1/-0.005；-0.01；-0.02 | 0.005；0.01；0.05；0.1/-0.005；-0.01；-0.02 | 0.005；0.01；0.05；0.1/-0.005；-0.01；-0.02 | 0.005；0.01；0.05；0.1/-0.005；-0.01；-0.02 | 0.005；0.01；0.05；0.1/-0.005；-0.01；-0.02 | 0.005；0.01；0.05；0.1/-0.005；-0.01；-0.02 | |
Quantity(pcs) | 2；3；2；1/1；1；4 | 2；3；0；3/1；1；4 | 2；3；1；3/1；1；4 | 2；3；1；5/1；1；4 | 2；3；1；6/1；1；4 | 2；3；1；9/1；1；4 | |
Interface thread specification | M20 × 1.5 | M20×1.5 | M20×1.5 | M20×1.5 | M20×1.5 | M20×1.5 | |
WeightQuantity(kg) | 45 | 50 | 52 | 55 | 60 | 85 | |
