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The MSC-200 is a simple to use system designed for drug applications
to cells or bath chambers.
The MSC-200 system consist of a 9-electrovalve array [EVH-9],
a manual electrovalve controller [MEV-9] and a micro-manifold
[9 to 1].

MSC manifold
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EVH-9 features :
- valve number : 9
- valve type : normally closed pinch valves
- power : 12 V (2A)
- command : TTL input
- manual control : MEV-9
- programmable control : RSC-200 (Rapid Solution Changer)
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MEV-9 features :
- 9 manual switches
- command : TTL pulse

Mode of operation
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Changing the switch position on the MEV-9 controller sends
a logic TTL pulse (0V or +5V, this corresponds to closed or
opened valve state respectively), following a logical function
as on the drawing to the left :
(*) Logical function
| Manual switch |
TTL IN |
Electrovalve state |
| 0 |
0 |
0= closed |
| 0 |
1 |
1= opened |
| 1 |
0 |
1= opened |
| 1 |
1 |
1= opened |
Manifold
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The manifold was designed to be easy to handle, easy to clean
and robust. The output and input tubing are made of standard,
easily available materials, and can easily be exchanged. The
user can access the common chamber by unscrewing the body
of the manifold. See drawing for details.
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1) The manifold is equipped with a metal
pin which permits the fixation to any micromanipulator electrode
holder.
2) Input tubing: 9 input lines made of polyethylene.
3) Output tubing: one output line made of fused silica tubing.
Length: 5cm, inside diameter: 500 µ (standard) or 250 µ. If
different output diameter should be used, it is possible to
buy only the lower part of the manifold (5).
4) Dead volume: 2.1 µl
Note : A themostated version of the manifold is available.
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Tubing
The EVH-9 electrovalve array can work with tubing of different
types, like silicone, tygon or C-Flex. The outside diameter
should not exceed 2.5mm. Our preference is C-Flex tubing (ID:
0.5mm, OD: 2.1mm, Reference: COLE PARMER #6424-59 or BIOBLOCK
SCIENTIFIC #M71195). C-Flex tubing is well adapted to our
electrovalves and is much less permeable to air than, for
example, silicon tubing. This tubing also gives a best compromise
between high flexibility (squeezing factor) and low permeability
to air. This tubing is connected by simple insertion into
the output tubing of the manifold.
Syringe Rack and Rack Holder
The most convenient way to hold the reservoir syringes is
to use the syringe rack that has been especially designed
for this use. The syringe rack can be installed or hanged
at the most convenient location in the Faraday cage or set
on its holder. One syringe rack can be set on each side of
the rack holder, giving a total capacity of 18 syringe reservoirs.

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Ordering information
The MSC-200 is delivered with a 9-electrovalve array - (EVH-9),
an electrovalve controller (MEV-9), and a micro-manifold (9
to 1 - 500 µ ID).
All other parts listed below are optional and should be specified
on order or may be purchased separately.
The micro-manifold is delivered with spare input and output
tubing and with C-Flex tubing (7,5 meter length, ID: 0.5mm,
OD: 2.1mm, Reference: BIOBLOCK SCIENTIFIC #M71195).
| Reference |
Description |
| 025-01/A or /B |
MSC-200 MANIFOLD SOLUTION CHANGER 220V or 110V |
| Options |
| 025-04/1 |
MANIFOLD BIO-LOGIC (9 to 1) 500µm ID / 700µm OD |
| 025-04/2 |
MANIFOLD BIO-LOGIC (9 to 1) 250µm ID / 400µm OD |
| 025-00/05 |
SYRINGE RACK - 9 |
| 025-00/06 |
SYRINGE RACK HOLDER (For 10 mL SYRINGE) |
| Manipulators |
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