Valve movements
50
Operating instructions
Movements for T valves (3-port and 4-port)
The following commands apply to the 90° 3-port T and 90°, 4-port T valves.
Refer to also to Figure 5-12, which shows valve positions according to valve
movement and initialization commands for the 3-port and 4-port T valves.
Move valve to input position (I)
The [I] command moves the valve to the input position. The input position
will be either to the left or the right depending on whether the [Z] or [Y] ini-
tialization command was sent first.
•
After Z initialization: sets input to left port.
•
After Y initialization: sets input to right port.
•
On the 4-Port T valve, the top port is also connected.
Move valve to output position (O)
The [O] command moves the valve to the output position. The output posi-
tion can be either to the left or the right depending on the [Z] or [Y] initial-
ization commands.
•
After Z initialization: sets output to right port.
•
After Y initialization: sets output to left port.
•
On the 4-Port T valve, the top port is also connected.
Move valve to bypass position (B)
The [B] command connects the input with output and syringe.
Movement is the same regardless of [Z] or [Y] initialization.
Bypass input to outlet port (E)
The extra [E] command connects the input and output ports, bypassing the
syringe. On the 4-port T valve, the top port is also connected.
Movement is the same regardless of [Z] or [Y] initialization.
Note:
When the valve is in the extra [E] position, the syringe plunger cannot
be moved. Sending a plunger movement command causes an Error 11
(plunger move not allowed).
Содержание C24000
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