Waters Prep series 1-9
Tip: If the device you are connecting to has a Gnd (ground) terminal, you must
connect it to the controller’s ground terminal.
Connection for devices to TTL-compatible outputs
The figure below depicts devices that require 12 Vac auxiliary power.
Tip: The Gnd terminals are not used.
Connection for devices requiring 12-volt auxiliary power
Inject Switch (Connect to terminals Inject and Gnd) – For a system that
includes a non-TTL injector, a run begins with the injector’s signal to the
inject start terminal. When the controller acts as a PowerLine system device
(see “Configuring the controller” on page 1-19), an autoinjector begins the run
and sends its signal through the inject start terminal or the IEEE-488
communications interface.
The inject start terminal becomes an output when you forgo using an injector
in favor of starting the run with screen keys. Thus the inject start terminal
synchronizes controller operation with that of fraction collectors, integrators,
and other devices that require a start signal.
Stop Flow (Connect Stop Flow and Gnd) – Accepts a contact closure
signal to stop the pump when radial compression falls below 650 psi. The
signal can originate with a programmable detector for Stop Flow scanning or
with the pressure monitor on the M-1000 PrepPak module.
Hold (Connect Hold and Gnd) – Produces an output signal that prevents
further injections in cases of catastrophic events: power failure, pressure
shutdown, or when abort conditions arise. Connect it with any compatible
device that must be stopped when any of these events happen.
S1 to S4
Gnd
Contact closure or
TTL-to-gnd device
+
_
Device requiring +
12V power
S1 to S4
Gnd
_
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