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Differential Pressure Gauges with Bourdon Tube Parallel Entry

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Differential Pressure Gauges with Bourdon Tube Parallel Entry

Measuring System Cu-alloy
Model No: 711.12

Scale ranges from 0 ... 0.6 bar

Differential pressure with moving dial

Economical and reliable

Design 2 independent measuring systems, parallel entries in line

Nominal size in mm 100, 160

Accuracy class 1.6

Scale ranges 0 ... 0.6 to 0 ... 1000 bar

Scale range must be selected in relation to the highest total pressure applied! In heating plants with circulating pumps, the overall pressure is usually defined as equal to the hydrostatic pressure plus the pump pressure. In order to ensure a good readability, the pressure differential to be indicated should be no less than 1/6 of the full scale range.

When ordering please state both pressures: a) maximum pressure applied, b) differential pressure

Pressure limitation Steady: full scale value Fluctuating: 0.9 x full scale value Short time: 1.3 x full scale value

Operating temperature Ambient: -20 ... +60 °C Medium: Model 711.12: +60 °C maximum (soft soldered); +100 °C maximum (brazed)

Temperature effect When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.4 ‰/10 K of full scale value

Ingress protection IP 33 per EN 60 529 / lEC 529

Measurement of differential pressures or of two different pressures applied

Heating, ventilation and air-conditioning

For gaseous and liquid media that are not highly viscous or crystallizing