Revision H, 11/10 VK 7025 Dissolution Apparatus Page 75
P/N 70-9033 Operator’s Manual Operation
Varian, Inc.
Instant Start
Depending upon the apparatus listed in the method and the options installed on your
tester, complete the steps listed under the appropriate apparatus on the following pages
to start the test immediately.
Vessel Temp
Start (VK 7025
with Paddles)
This option displays only when using paddles with a VK 7025.
You can program the test to begin automatically when the dissolution
medium reaches a programmed temperature. See “Vessel Temp Start”
on page 83.
Wait External
Start
The VK 7025 can be used with an external device (for example, the
Waters Alliance System). The external start command is supplied as a
simple TTL closure through a four-pin DIN cable (supplied separately)
connected to the START INPUT port located on the rear panel of the
VK 7025.
Select WAIT EXTERNAL START.
WAITING EXTERNAL START displays. The
test runs according to the program entered on the VK 7025 once the
external start command is received.
Apparatus Procedures
Paddles See “Paddles” on page 76.
Baskets See “Baskets” on page 78.
Paddle over disk See “Paddle Over Disk” on page 79.
Rotating cylinder See “Rotating Cylinder” on page 80.
Option Response
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