Pressure Gauges

Test Gauge

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Test Pressure Gauge

The standard test gauge are used for the calibration of Pressure Gauges or Pressure Transducers, Pneumatic Controllers, Valves, Transmitters etc.

Accuracy

Every standard test gauge is issued with a point-by-point test certificate of readings on its final test. The error in reading is guaranteed not to exceed one quater of one percent of full scale range at any point of the scale on either rising or falling pressure / vacuum.

Specification

Case: Steel with dark grey hammertone enamel finish 100mm diameter. Pointers: Aluminium, line pointer black differential red.
Bezel: Steel bright nickel plated. Ranges: Minimum 0-15 up to 0-600 PSI/BAR dual scale also BAR and MWs/BAR
Window: clear glass or heavy duty acrylic. Accuracy: At 20oC, ±1% F.S> according to DIN and BS.
Connection: 2×½" BSP or NPT brass (MONOBLOC) Max Working Pressure: A) 75% F.S. for normal, steady pressures with slow variation
b) 66% F.S. for rapidly changing and fluctuating pressures.
Bourdon Tubes: Phospher bronze. Ambient Temperature: -25/+50oC.
Movements: All brass with heavy duty quadrant and precision bearings. Process Temperature: +50oC maximum (optional +200oC).
Dial: Aluminium with enamel ground with black and red printing. Over-pressure Limit: 110%.
Scales: Main and differential concentric over 270o according to BS, DIN and ASA. Protection: IP 54 (splashproof).

Pressure Medium

If a gauge has been calibrated on air and is subsequently used on liquid the weight of liquid in the tube will weigh down the end ot the tube and can thus cause an error in the gauge reading. This effect is significant on low pressure gauges and so standard test gauges with graduations up to and including 16 bar or 250 lbf/in2 are calibrated on air if they are to be used on liquid. The dial of all gauges calibrated on air are marked "Calibrated on Air, use no liquid". Gauges with ranges above 16 bar or 250 lbf/in2 calibrated on oil or air show no significant error so, the pressure medium need not be specified when ordering. All vacuum gauges are calibrated on air.

Oil Free Gauges

The tubes and connection blocks of these gauges are degreased before assembly and the strictest precautions are taken to see that no oil enters the tube during manufacture and the dials are marked "use no oil". When ordering please state whether the gauges are to be calibrated on air or liquid.

ISO 9002 Accredited
Instruments & Gauges Electronics Limited
Unit 2, Dalweb Industrial Estate,
Gravel Lane,
Southport, Lancashire,
PR98DE.
Tel: (01704) 505333
Fax: (01704) 505334 		Company Logo
E-mail:sales@instruments-gauges.co.uk