19.7
Calibrating the scaling input
It is possible to scale the speed of the pump remotely by one of these methods: a voltage analog signal
within the range 0-10 V; or a current analog signal within the range 4-20 mA. The speed of the pump as
set by Analog 1 is scaled in proportion to the signal from Analog 2 according to the formula y=as, where
a is the speed set by Analog 1, s is the scaling set by Analog 2, and y is the scaled rotation speed.
Using the
∧
/
∨
keys, scroll to
Scaling input
and press
SELECT
.
Select the input signal type, using the
∧
/
∨
keys, and press
SELECT
.
The pump gives the option to enter the high and low mA or V signals manually or via the analog input.
Entering mA values is described here and the process for entering Voltage signals is identical.
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Summary of Contents for 630 Du
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