The device offers precise digital pressure measurement, incorporating digital compensation for non-
linearities in readings. It is a user-friendly solution for hydraulic balancing in heating and cooling
systems. PPLUS can also be used solely for precise pressure measurements. It enables the
measurement of static pressure, differential pressure, and flow within the aforementioned systems.
When used in HVAC applications, the PPLUS measures differential pressure across a measuring or
balancing element. After the KV value of the measuring element is entered, the device calculates
the flow rate through it. The device features a monochrome graphic display and is operated via a
built-in keyboard.
Features
Precise pressure measuring
True differential pressure sensor
18-bit AD conversion
Digital compensation for measurement non-linearity
Digital zeroing of the influence of static pressure in the system on differential pressure measurement
Measurement of relative (static) and differential pressure in systems
Entry of the KV value for the measuring or balancing element via the device keyboard
Flow calculation based on the differential pressure measured at the selected element
Selection of pressure and flow units, including American units
10 languages selectable from the device menu
Technical parameters
Pressure Sensor
Piezoresistive true differential pressure sensor
Full Scale Range
1 MPa (2 MPa available on request)
Allowed Overpressure
120 % of FS
Non-linearity, Hysteresis and Repeatability
0.15 % of FS
Zeroing Error (under 5 kPa)
±75 Pa (FS 1 MPa), ±150 Pa (FS 2 MPa)
Temperature Error
1.5 % of FS
Allowed Media Temperature
0 °C to 90 °C (water), −20 °C to 90 °C (antifreeze), measured at the end of 1.5 m hoses
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EN ISO 9001:2015 
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