Pressure Gauges Calibration
Pressure Gauges Calibration – To be used as a calibration apparatus which is used for the calibration of bourdcn pressure gauges. It is equipped with PID controller, compressor, needle valve, solenoid valves, vtrety valve, digital/master gauge, bourdon pressure gauges, transducer, storage tank etc. It uses air as a gas whose pressure is controlled at any specific desired value and the gauges are accordingly calibrated. Measuring devices for pressure and vacuum Ittube and indined tube manometers
Pressure Gauges Calibration Apparatus Specification
- U tube manometer, pressure above atmospheric
- Bourdon tube manometer, pressure below atmospheric
- Plastic syringe generates test pressures in the millibar range Bourdon tube manometer: 0…60mbar U-tube manometer: 0…500mmWC
- Inclined tube manometer: 0…500mmWC Pressure Transmitter with Digital Display: 0 to 4 bar Calibration Gauge: 0 to 4 bar Calibration Same: Pressure Pump Hand Operated with Built in Safety Pressure Control: Regulator with Valve Data Acquisition Unit
PEEL BOND STRENGTH
SCOPE of pressure gauges calibration
To determine the mean force required to separate the components of bonded fabrics.
Fused components are separated and pulled apart at a specified rate. The mean force required is determined from a peak recording chart or computer programme.
Tensile testing machine – Gauge length 20mm minimum,
Crosshead speed 100mm/minute
Chart speed – suitable speed selected to define individual peaks
Force range – suitable range to give good resolution for the given specimen.
- Neoprene rubber-faced jaws – Jaw faces 25mm x 40mm.
CONDITIONING & TESTING ATMOSPHERE
Specimens are conditioned in the standard atmosphere of 65 +/- 2% rh and a temperature of 20 +/-2 degrees C. for a minimum of 16 hours. Testing must take place in a conditioned atmosphere.
are to be tested in the original and after wash state. Cut three specimens 25mm
wide x minimum 100mm long from each direction of the fabric.
- Manually separate the two fused layers to a distance of 25mm.
- Clamp one component in the lower jaw and the other in the upper jaw.
Pressure Gauges Calibration – Activate the cross head at a rate of 100mm/minute for a minimum of 60 mm.