Pressure Gauges Calibration Apparatus
What is Pressure Gauges Calibration Apparatus

What is Pressure Gauges Calibration Apparatus?

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.

PRINCIPLE

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.

APPARATUS

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.
  • Scissors
  • Ruler

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.

SAMPLE PREPARATION

Specimens 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.

TEST PROCEDURE

  • 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.

About Engr. Kh. Mashiur Rahman

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