Pulsar FLOWPULSE, Инструкция по эксплуатации

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PULSAR MEASUREMENT
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Pipe Internal Diameter
The pipe internal diameter is the only parameter that must be entered after
every FlowPulse installation. The default unit is millimetres (mm), with the
option for unit of inches.
Calibration Factor
The calibration factor can be used to internally scale the flow reading by a
multiplication factor.
As an example, a factor of 0.5 will scale the reading to give only half of its
original value, or a factor of 1.2 will scale the reading to give 120% of its
original. This is set to 1.0 by default, implying no scaling. Note that any
change in the calibration factor is stored on FlowPulse.
Sensitivity
The sensitivity of FlowPulse can be increased for difficult pipes or liquids.
When using FlowPulse on high sensitivity setting, observations should be
made to ensure that no-flow indication is consistent. Operating at higher
sensitivity may increase the susceptibility of the device to external sources of
noise.
A lower sensitivity may be desirable when operating in an environment that
has the potential for electrical interference. At lower sensitivities,
observations need to be made to ensure that there is sufficient signal
strength for reliable detection of flow. This needs to allow for any long-term
variation in pump or pipe conditions. In general, minimum signal strength
of 60% is required.