PDES-01DM User Manual
version 1.3
page 13
4.2. Operation
Connect the gas source (max. 5 bar) to the INPUT connector at the front panel.
Important
: Do not connect sources of OXYGEN or COMBUSTIBLE gases!! The gas source
MUST be dry and oil free!! Please use a degreaser and filter the gas source by a 5 µm filter
element.
Connect the injection pipette to the OUT connector at the front panel
or
connect the
micro
JECT pipette holder to the two
micro
JECT connectors at the front panel
(#
6
and #
7
, Figure 5), and connect your ejection pipette to the
micro
JECT (#
1
, Figure 6).
If a low "retain" pressure (analogous to the "retaining" current used in iontophoretic
systems) is required, connect the “retain” pressure source to EXHAUST at the front panel.
Turn on pressure and adjust the pressure to the desired value using the pressure regulator
(#
5
, Figure 5).
Connect a timing unit to the TTL INPUT connector (#
11
, Figure 5) at the front panel
or
connect a pushbutton to the REMOTE CONTROL connector (#
10
, Figure 5) at the front
panel
The LED is green when no ejection occurs and red when the pressure is applied to the
pipette.
Select the operation mode using the rotary switch (#
12
, Figure 5) at the front panel.
In the CONT. position positive pressure is applied to the pipette continuously.
In the EXTERN position the duration of the application is determined directly by the
duration of the TTL signal or the time the pushbutton is pressed.
In the TIMER position the duration is preset by the timer control (#
14
, Figure 5) and
time base (#
13
, Figure 5) of the PDES. Application is started with a TTL signal
connected to TTL INPUT (#
11
, Figure 5) or by pressing the pushbutton connected
to #
10
, Figure 5. In position OFF of the timer control for pressure ejection is disabled.
In the OFF position the PDES module is turned OFF, the valve is closed. LED (#
15
,
Figure 5) is also off. The source pressure value is still shown at the manometer #
1
,
Figure 5, but opening of the valve is disabled in OFF position.
Hint
: Ejection time can be monitored by recording the signal at #
8
, Figure 5!
