WIKA Model 111.31 Bourdon tube pressure gauge, copper alloy Welding gauge ISO 5171, safety version

Highly developed sensor technology means high
pressure regulation accuracy, a very important
factor in the precise and energy-economic capacity regulation of refrigeration plant.
ƒ Temperature compensation for LP and HP
pressure transmitters, developed specially for
refrigeration plant:
LP: −30 → +40°C (≤16 bar)
HP: 0 → +80°C (>16 bar)
ƒ Compatibility with all refrigerants incl. ammonia means less stock and greater application
flexibility.
ƒ Built-in voltage stabiliser, i.e. the AKS pressure
transmitters can be powered from an unregulated voltage supply of any output within
given limits.
ƒ Effective protection against moisture means
that the sensor can be mounted in very harsh
environments, e.g. in the suction line encapsulated in an ice block.
ƒ Robust construction gives protection against
mechanical influences such as shock, vibration and pressure surge. AKS sensors can be
mounted direct on to the plant.
ƒ No adjustment necessary. With the highly developed sensor technology and sealed gauge
principle, the accuracy of the factory setting is
maintained independent of variations in ambient temperature and atmospheric pressure.
This is very important when ensuring evaporating pressure control in air conditioning and
refrigeration applications.
ƒ EMC protection according to EU
EMC-directive (CE-marked)
ƒ UL approved
ƒ Polarity protected inputs.