Overview
KEY FEATURES
- Accuracy is 0.005%rd or 0.01%rd, the accuracy at LLR keeps same as ULR
- Built-in thermometer measures the piston-cylinder temperature
- Dial indicator shows floating piston positon
- Motorized mass set rotation system
- High quality needle valves provide optimum control and sealingฅ
- Tungsten carbide piston and cylinder
- Forged non-magnetic 304SS mass set
- Local gravity value can be customized
- Optional 280MPa / 40,000 psi is available
APPLICATION
- Primary pressure calibration in lab
- Precision pressure measurement
The model BL515 hydraulic precision pressure balances are widely applicable in primary pressure calibration laboratories. Both the piston and cylinder are manufactured from tungsten carbide. This pairing of materials, in comparison to other materials, has very low pressure and temperature coefficients of expansion, which results in a very good linearity for the effective area of the piston and a very high accuracy. Overpressure protection is integrated, which prevents the piston from being forced out vertically and avoids damage to the piston-cylinder system in the event of masses removal under pressure.
SPECIFICATION
- Accuracy is 0.01% or 0.005%RD, acuracy of LLR keeps same as ULR (other brand DWT is only 10% of ULR)
- Piston and cylinder material: Tungsten carbide
- Mass material: 304 stainless steel (316 stainless steel is option)
- Hydraulic base material: Aluminium alloy
- Seal material: Buna-N, FTM, PTFE, Cu Alloy
- Medium: Mineral Oil (<25MPa); Sebacate (≥25MPa)
- Pressure units available: MPa, bar, psi (optional)
- Connector: Metric, (NPT and BSP is optional)
- Base dimension: 410 mm (H) x 375 mm (L) x 445 mm (D)
- Base weight: appro. 20kg
Pressure range Part Number Part # 50 kgRange Area Piston & Bell (P/kg) Mass Set KY0.6 (0.04~0.6)MPa 1cm2 0.04 MPa @ 0.4kg 6 kg KY6 (0.1~6)MPa 0.2cm2 0.1 MPa @ 0.2kg 12 kg KY25 (0.5~25)MPa 0.1cm2 0.5 MPa @ 0.5kg 25 kg KY60 (1~60)MPa 0.05cm2 1 MPa @ 0.5kg 30 kg KY70 (1~70)MPa 0.05cm2 1 MPa @ 0.5kg 35 kg KY100A (2~100) MPa 0.05cm2 2 MPa @ 1kg 50 kg KY100B (1~100) MPa 0.05cm2 1 MPa @ 0.5kg 50 kg KY160 (2~160) MPa 0.05cm2 2 MPa @ 1kg 80 kg KY250A (5~250) MPa 0.02cm2 5 MPa @ 1kg 50 kg KY250B (2.5~250) MPa 0.02cm2 2.5 MPa @ 0.5kg 50 kg KY250C (2~250) MPa 0.02cm2 2 MPa @ 0.4kg