|Pressure Measurement and Calibration :
Pressure Measurement and Calibration
- A bench top unit comprising a simple
Dead-weight Pressure Calibrator with weights to generate a range of
predetermined pressures that is connected to a Bourdon gauge and
electronic pressure sensor. The Bourdon gauge incorporates an arbitrary
scale in addition to the pressure scale and a clear acrylic front face
allows observation of the Bourdon tube and the operating mechanism. A
reservoir with isolating valve allows the calibrator, Bourdon gauge and
pressure sensor to be easily primed.
- An electrical console houses the
necessary electronics with current protection devices and an RCD for
operator protection. A digital meter with selector switch displays the
output from the pressure sensor as well as the conditioned reading in
engineering units. Corresponding signals are routed to an I/O Port for
connection to a PC. An optional interface device with educational
software package is available.
- The Dead-weight Pressure Calibrator,
Bourdon gauge and pressure sensor are mounted on a common PVC baseplate.
The electrical console is free standing.
- Pressure sensors, manometers or Bourdon gauges other than those supplied can be calibrated over the range 20 kNm-2 to 200 kNm-2.
- A comprehensive instruction manual is included with a range of fully detailed Laboratory Teaching Exercises.
- Includes simple Dead-weight Pressure Calibrator using water for safety and ease of use
- Bourdon gauge and electronic sensor included for calibration
- Operating mechanism of Bourdon gauge visible through clear scale
- Electrical sensor can be logged using a PC (optional teaching software available)
A bench top unit designed to introduce
students to pressure, pressure scales and common devices available to
measure pressure.The equipment comprises a Dead-weight Pressure
Calibrator (DPC) to generate a number of predetermined pressures,
connected to a Bourdon gauge and electronic pressure sensor to allow
their characteristics, including accuracy and linearity, to be
determined. The DPC consists of a precision ground piston and cylinder
with a set of weights giving an operating range of 20 kNm-2 to 200
kNm-2. The Bourdon gauge and pressure sensor are mounted on a manifold
block with a separate reservoir to contain the hydraulic fluid (water
for safety and ease of use). Valves allow for easy priming, restricted
flow of water to demonstrate the application of damping and the
connection of alternative devices for calibration. The gauge supplied is
a traditional 6″ diameter industrial instrument but fitted with a clear
rotary scale to allow observation of the Bourdon tube and indicator
mechanism. The scale is calibrated in degrees of rotation (independent
of units of pressure) in addition to the usual scale calibrated in units
of kNm-2. The electronic pressure sensor supplied incorporates a
semi-conductor diaphragm that deflects when pressure is applied by the
working fluid. This deflection generates a voltage output that is
proportional to the applied pressure.