Setpoint Interface (Optional):
The Micro 4000 can be fitted with either 1 or 2 setpoint outputs which can be configured to operate in two
modes of operation.
Entering a Setpoint
With the Micro 4000 in normal weighing mode, use the “MODE” key to scroll the display until the display
shows “SET 1” or “SET 2” depending on which setpoint you want to change, press the “ENTER” key and
the display will show the value of the setpoint already in the Micro 4000. Enter in the new setpoint as
required and then press the “ENTER” key. The Micro 4000 will now revert back to normal weighing mode.
The setpoint values are stored internally and remain valid even if the Micro 4000 is switched off.
Mode 1: (spec 20=off) ......Utilising a start key
.
The F3 key is used as the start key as standard.
(A remote start key facility is also available)
The relay contacts are normally open. On depression of the start key the relay contacts close and remain
closed until the target weight is reached at which point the relay contacts are opened. They remain open
until the sequence is reset by allowing the weight to return to within 2 divisions of zero at which point the
start key can be pressed again to restart the sequence. The start key will remain inactive if the sequence
is not reset by allowing the weight to return to within 2 divisions of zero.
Mode 2: (spec 20=on)
(Normally used to operate lamps etc.)
The relays are non-latching and a start key is not required. The relay contacts operate freely and are open
below the target weight and close when at or above the target weight.
Negative setpoint operation: (spec21=on)
Negative setpoint operation is only valid for mode 2 and allow’s the the target weight to operate on a negative
weight only.
Relay contact rating:
The relay contacts are voltage free and are capable of switching 1 Amp at 30 Vdc or 1 Amp at 240 Vac.
The switching of 240 Vac is not recommended and if this is required then an external relay box should be
used. | 
