Davey Speedman Dual Pump Variable Speed Pump Control System - Manual (Page 34)

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Adjust Flow OR Adjust Backup Pr (Backup Transducer)
Flow
The calibration of the analogue sensors is
achieved by adjusting the Speedman Flow
Meter reading to match the reading from the
system Flow Meter.
Backup
If the Analogue input is configured to be a backup pressure transducer then this
display will be displayed instead of Flow. When the backup transducer is selected
it will automatically swap between transducers should one transducer become
out of range. Out of range is defined as a reading greater than 95% or less than 18%. For it to work effectively
it has to be adjusted exactly the same as the primary transducer.
Scale An Output
This allows the analogue input to be re-scaled and sent to other devices.
1000 =1:1, 2000 = 2:1
(Output twice the input value).
Refer to Outputs to select either Flow, Pressure or VSD Speed references
Standby Test
The Speedman uses one of three methods to detect “NO FLOW”
• Boost - Add extra pressure to the system and time how long it takes to fall
back to the set point.
• Flow switch - If a flow switch closes the contact an Speedman input programmed to “No Flow” then
the system shuts down. This shut down reason is NOT registered as a fault.
• Flow Rate - If the flow rate in the system is below the nominated amount in this menu the system will
shut down. A flow meter is required for this selection.
For more information see “Standby Boost” in the TUNING section.
JP Fallback
If Speedman pump 1 is configured as a Jockey Pump and the “Standby Test”
option method is set to “Flow Switch” or “Flow Rate” then the system can be
configured to automatically fall back to operate on the Jockey Pump when a flow switch input is sensed OR the
flow rate is the flow is below the “Fallback FlowMin” setting in the TUNING menu.
When fallback is enabled there is a delay timer associated with this action, it is the “Fallback Delay” and is in
the TIMING menu.
Set Time / Date
Select a field and press the ENTER key. Set the time or date field and press the
ENTER KEY again. This will highlight the next set of numbers. A flashing cursor
will signal which field is being edited.
If the screen reads “00:00 2000 Jan 01” (the default), then the time and date need to be initialised. Set the
relevant fields as above.
Adjust Flow
XXXXX /min
Adjust Backup Pr
XXXX
Scale An Output
XXXXX
Standby Test
Boost
JP Fallback
On
Set Time/Date
12:00 2011 Jul 01