Specifications RSC-200

 


Flow setting :
Two different possibilities are available for the setting of the flow:
gravity (The flow of other solutions can be stopped with the optional Valve Array or the solutions can flow simultaneously in the bath outside the range of the pipette). The solutions are simply driven by gravity and the flow rate controlled by the height of the reservoir containing the solutions.
optional motorized syringe array(s) MS-4 and MS-8.
Each solution is contained in a glass syringe driven by its own stepping motor. The flow is adjustable and the start/stop can be synchronized with the movement of the RSC head.

Control of the instrument :
Solution changes and valve/motorized syringe control may be performed:
Manually from the front panel of the controller.
Automatically using analog pulses generated from a stimulator or a D/A board. ( for example : AN#1 - RSC - Control through Axon software ; AN#2 - RSC - Control through Heka software)
Automatically using a PC computer linked via RS-232 or GPIB (RSC-200 only - NI GPIB boards only) and the provided software to edit and download a sequence.
The RSC-200 doubles as a stimulator since it can deliver an analog stimulation to the patch-clamp amplifier through a 16-bit D/A converter. This stimulator can be programmed in combination with the solution change by the software.


Electrovalves
The electro valves are an optional device which opens the flow only on the selected tubes. The set of 9 valves are mounted into their housing. The RSC-160 system can drive up to 9 valves (1 set of valves) while the RSC-200 system can drive up to 36 valves (4 sets of valves). The valves used for RSC-160 & RSC-200 are normally closed pinch valves. The valves can be commanded by front panel of the controller or the software. All valves can be programmed to open or close synchronously with a tube position change. More than one valve can be opened at a time, or valves can be opened or closed independently of the head rotation. For example to pre-establish the flow in the next tube to be tested a few seconds before rotation.

Motorized syringes MS-4 and MS-8
The MS-4 and MS-8 modules, has 4 and 8 individually motorized syringes respectively. It means that the starts and stops of every syringe can be controlled individually.
The MS-4 system consist of a control unit and one syringe module with 4 syringes.
The MS-8 system consist of a control unit and two identical syringe modules each with 4 syringes. The system can operate up to 8 syringes.
It is therefore possible to upgrade the MS-4 system to MS-8 simply by adding a second syringe module.
The system is delivered with 5ml microsyringes. With these volumes the flow from 0.023ml/minute to 0.38ml/minute can be obtaine
.

Syringe Rack and Rack Holder
Two syringe racks are available:
for 10ml syringes (standard), 18mm holes
for 50ml syringes (on request), 32mm holes

The Heads
One of the important features of RSC heads is an easy exchange of solution delivering tubing, this eliminates necessity of washing and risks of residual contaminations. Every RSC-200 system is delivered with one head.
The straight head was designed to carry standard capillary glass, OD 1.00mm. This head gives the following advantages:
Capillaries can protrude, giving better approach to a cell.
The number of capillaries installed is up to the user.
Capillaries take minimum space in the cuvette.
Easy exchange of capillaries.
Easy attachment to the flexible tubing

Stimulator
The RSC-200 is equipped with one stimulator channel (+/-10V, 1mV and 1ms resolution). This stimulation is programmed by the same software as the solution change.

TTL
On the rear panel of the instrument 4 x TTL , independently programmable channels are available. As for the stimulation channel, the TTL pulses are programmed by the same software as the solution change.

Software
The RSC-200 instrument are delivered with a Windows 3.1 software (Windows 95/98 compatible). The software permits the following operations:
manual positioning of the head
manual opening of the valves
resting Vhold setting
edit and download of a sequence where the following parameters can be exchanged at each step:
- duration of stay in the active position for a given tube number
-
speed of solution change (head rotation)
-
choice of electrovalves to be opened/motorized syringes to start (if applicable)
- stimulation pulse level ( range: +/-10V) 
-
TTL signal activation (4 lines of signal available)
- triggering of other auxiliary instruments

Manipulator
The RSC-200 motor can be mounted, on any 3-axis manual manipulator, providing that the motor will have a mechanically stable fixation. We recommend 3 models of manipulators; UM-3C (with rotation mechanism) (You), M-152 (Narishige), MM-33 (Marzhauser) with direct mounting (no adaptor required - better mechanical link).
These manipulators may be delivered with magnetic stands. Another very good solution for the micromanipulator fixture is the use of the SPT-Tower System.

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