Davey Speedman Dual Pump Variable Speed Pump Control System - Manual (Page 46)

46
The standard transducer fitted to the Speedman is rated to 25Bar
ANALOGUE INPUTS
External Analogue Input
The analogue terminals are located on the left hand side of the PCB near the top.
The use of 4 – 20mA and 0-10V transducers require the slide switches to be placed to
match the input. This allows the system to read the correct input from the transducers.
To use this input note the
wiring requirements on the
PCB. A 24VDC power supply
is available on board for 2-wire
configuration.
Typical 4-20mA application
shown.
Note switch settings.
Three wire transducers are
typically 0-10 V or 0-5V output.
Note switch settings.
Flow Meter Inputs
Speedman can accept a
0-10VDC or 4-20mA signal from
flow meters.
Volts = 0-500mVDC,0-5VDC,0-10VDC etc
mA= 0-20mA,4-20mA etc
4-20 mA is a standard analogue signal from a pressure transducer.