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Product description
1.1 General description
PFM Flex 4 (PFM = Pressure Flow Meter) is an instrument for
pressure- and flow measurements. The intended usage is checking-
and documentation of water flow in heating- and cooling constructions.
PFM Flex 4 consists mainly of a Measuring Sensor and a Hand
Terminal (PPC) including the BalanceFlex program software. The
Sensor measures differential pressure as well as temperature and
communicates via Bluetooth with the Hand Terminal.
The Hand Terminal software comprises data of most of the existing
balancing valves on the market. From the Hand terminal list of
Balancing Valves, the operator choose the actual one (manufacture,
model, dimension, position (giving the corresponding KV). This valve
data together with measured DP are the basics for calculation of the
correct flow which will be displayed on the Hand terminal screen.
Measurement readings can be shown in a graphical form in the Hand
Terminal. Readings of balanced values with respective valve data can
be saved and later shown on the Hand Terminal screen or even on a
PC screen that is connected to the Hand Terminal. The Hand Terminal
has a rechargeable battery, type Lithium Ion as well as a system
battery. Charging of Hand Terminal is done via enclosed charger.
The PFM Flex 4 includes more functions than just commissioning
items. Media and Log functions, on-line graphical display of DP,
temperatures and flow. Temperature difference (DT) can be measured
or given manually to on-line graphic display of Power capacity and
Energy amount carried by a particular flow. Flex 4 can be used at heat
pump and solar installations, error tracing, at cooling and air
conditioning systems.
The Sensor has two connections for hoses that are to be connected
over the measuring object. There is also a handle device on the Sensor
for opening and closing of the measuring cell.
The Sensor has a rechargeable battery pack of 6.600 mAh. Charging is
done via the enclosed battery charger.
Summary of Contents for PFM Flex 1
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