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)
Model 731.12: +200 °C maximum


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


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Differential Pressure Gauges with Bourdon Tube, Parallel Entry Measuring System Cu-alloy or Stainless Steel

Differential Pressure Gauges with Bourdon Tube, Parallel Entry
Measuring System Cu-alloy or Stainless Steel
Product Description

Details

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)
Model 731.12: +200 °C maximum

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

Additional Information

Additional Information

Applications 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 crystallising Model 731.12 for aggressive media also
Model No 711.12, 731.12
Special Features
  • Scale ranges from 0 ... 0.6 bar
  • Differential pressure with moving dial
  • Economical and reliabl