Alicat VC Series Volumetric Flow Controller - Manual (Page 45)

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Option: Local Set-Point Module
The Local Set-Point Module ( LSPM) is designed to provide the user with a simple “turn of the dial”
method of changing a flow or pressure controller
set-point.
The LSPM features a set-point control dial, a digital
LED display which can be set to show either the
set-point or the actual process measurement, and
a tracking alarm LED which glows red whenever
the actual process measure ment deviates from the
set-point by more than 2% of full scale. This device
is handy as a remote control/display device where
the controller is out of convenient reach or view.
It is supplied with a 6’ double ended cable to run
between the controller and the LSPM. There is an
additional 8 pin Mini-DIN port on the LSPM that
allows access to normal signal/power functions of
the controller’s Mini-DIN port.
8 Pin Mini-DIN connector connects to controller or to external device for power or output •
signal recording
LCD Display can display either the set-point or the process measurement. •
Set-point Adjustment Knob provides simple “dial it in” process changes. •
Display button switches display between actual set-point and measured flow parameter. •
LED indicator switches from green to red when the measured parameter deviates from the •
set-point by more than 2% of full scale.
Operation Notes: The LSPM requires a double ended DC-62 8 Pin Mini-DIN cable connected
between either the top or bottom connector socket of the LSPM to the connector socket on top of
the controller. The two connector sockets on the LSPM are “pass through” connected so that the
unused socket can be connected to a DC-61 single ended cable for connection of output signals
and/or power. Appropriate power can be connected to either the LSPM or the controller, whichever
is more convenient. Unless specially ordered otherwise, the LSPM utilizes the 5.12 Vdc output pin
on the controller (pin 2) as a source. The 5.12 volts is connected through the potentiometer and
returned to the controller on the set-point pin (pin 4) as a 0 though 5.12 Vdc input signal depending
on the position of the adjustment knob.
DC-62 Double Ended
8Pin Mini-DIN Cable
2.375
2.992
.670
1.050