Pressure Gauge WIKA 733.18 use for :
- Measurement of differential pressure or of two different pressures applied in refrigeration plants or compressors
- Simultaneous measurement of the vapour pressure and the resulting vapour temperature
- For gaseous and liquid aggressive media that are not highly viscous or crystallising, also in aggressive ambience
SPECIAL FEATURES
- Differential pressure with moving dial
- Design optionally with duplex scale
- With liquid-filled case for damping in applications with high dynamic pressure loads or vibrations and for avoiding condensation water
- Combined pressure and temperature scales, as duplex, triplex or quadruple scales for all common refrigerants
DESCRIPTION Pressure Gauge WIKA 733.18 :
Design
Two independent measuring systems, parallel entries in line
Nominal size in mm
80, 100
Accuracy class
1.6
Scale ranges
0 … 2.5 to 0 … 60 bar -1 … 0 … +25 bar
-1 … 0 … +12 bar -1 … 0 … +30 bar
-1 … 0 … +15 bar -1 … 0 … +35 bar
-1 … 0 … +16 bar -1 … 0 … +40 bar
Other scale ranges on request
In order to ensure a good readability, the differential pressure should be no less than
1/6 of the full scale value.
Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Short time: 1.3 x full scale value
Permissible temperature
Ambient: 0 … +60 °C
Medium: +100 °C maximum
Temperature effect
When the temperature of the measuring system deviate from the reference temperature
(+20 °C): max. ±0.4 %/10 K of full scale value
