Techne FSC400D User manual
Sample
Concentrator
OPERATOR'S MANUAL
Issue 14
10/15
CONTENTS
PAGE
INTRODUCTION 2
Warning 2
Operator safety 3
Specification 3
Installation 3
Diagram of Sample Concentrator 4
Guarantee 5
OPERATION 6
Preparation 7
Operation 8
ADDITIONAL INFORMATION 9
User maintenance 9
Solvent evaporation temperatures 10
Diagram of gas chamber 12
Replacement parts 13
1
INTRODUCTION
Please read all the information in this user manual before using the Sample Concentrator.
The Techne Sample Concentrator has been designed to provide a quick and convenient method of
accelerating the concentration by evaporation of solvents from samples prior to analysis. It is designed to
work in conjunction with Techne DB100/3, DB200/3, DB-3, and DB-3A Dri-Block®heaters*.
The Sample Concentrator consists of a gas chamber mounted above a Dri-Block®heater into which
vessels containing samples are placed. Hyperdermic needles carry the gas down from the chamber into
the test tubes. The samples are heated from below by the heater and the flow of gas directed over the
surface of the samples displaces the evaporated solvent from above the liquid’s surface. This significantly
increases the rate of sample concentration.
The unit provides accurate and reproducible control over the positioning of the needles. The gas chamber
can be removed from its stand to provide easy access to the samples, and it can be replaced quickly. The
whole unit is compact enough for convenient use in a fume cupboard.
WARNING
HIGH TEMPERATURES ARE DANGEROUS: they can cause serious burns and ignite combustible material.
Users should pay attention to the following points:
• USE CARE AND WEAR PROTECTIVE GLOVES TO PROTECT HANDS;
• DO NOT put hot objects on or near combustible objects;
• DO NOT place any liquid directly into your Dri-Block® heater;
• At all times USE COMMON SENSE.
*The Dri-Block®heater is not provided and must be purchased separately.
2
SAFETY ADVICE BEFORE USE
OPERATOR SAFETY
All users of Techne equipment must have available the relevant literature needed to ensure their safety.
It is important that only suitably instructed personnel operate this equipment, in accordance with the
instructions contained in this manual and with proper safety standards and procedures.
SPECIFICATION
Maximum vertical travel 320 mm
Maximum gas pressure 2 psi
Maximum gas usage 15 litres/min
Gas Any inert gas (often nitrogen)
Needle positions Variable to suit Techne Dri-Blocks®
Gas Intake Nozzle Diameter 6.35 mm (¼")
Height 530 mm
Width 240 mm
Depth 295 mm
Weight 3.5 Kg
INSTALLATION
For packing purposes the Sample Concentrator is supplied unassembled in three parts; the base board,
the column and carriage, and the gas chamber. The unit is re-assembled as follows:
1. Unscrew the column fastening knob from the column support bracket already fixed to the base
board. Locate the column on the two pins in the support bracket. Screw the fastening knob through
the rear of the column and tighten firmly.
2. Align the threaded hole on the back of the gas chamber with the mounting on the carriage. Tighten
the locking knob to secure the gas chamber in position.
3
4
3. Connect the intake nozzle at the rear of the gas chamber to a suitable supply of gas via a pressure
reducing valve. The gas pressure should be adjusted as required at the reducing valve but should not
exceed 2 psi. Pressure in excess of 2 psi will cause gas to be vented and wasted.
4. Place the Techne Dri-Block®heater onto the base of the Sample Concentrator. It is positioned by
means of two spigots on the base board which align with two centrally located screw heads on the
underside of the Dri-Block®unit.
DIAGRAM OF SAMPLE CONCENTRATOR
Carriage
Column
Fastening
knob
Location
spigots
Needles
Baseboard
Gas
chamber
Intake
nozzle
Locking
knob
Fastening
knob
5
GUARANTEE
This instrument is guaranteed against any defect in material or workmanship for a period as specified on
the enclosed guarantee card. This period is from the date of purchase, and within this period all defective
parts will be replaced free of charge provided that the defect is not the result of misuse, accident or
negligence. Servicing under this guarantee should be obtained from the supplier.
Notwithstanding the description and specification(s) of the units contained in the user manual, Techne
hereby reserves the right to make such changes as it shall see fit to the units or to any component of the
units.
This user’s manual has been prepared solely for the convenience of Techne customers and nothing in this
manual shall be taken as a warranty, condition or representation concerning the description,
merchantability, fitness for purpose or otherwise of the units or the components.
OPERATION
Preparation
1. Place the aluminium insert blocks to be used into the Dri-Block®unit. The blocks should touch each
other and be positioned centrally.
2. Loosen the locking knob on the carriage. Remove the gas chamber, disconnecting the gas pipe if
necessary, and lay the chamber upside down on a suitable work surface.
3. Insert the hyperdermic needles in the pattern to suit the test tubes to be placed in the heater.
The needle guide holes are labelled with a letter corresponding with the type of insert block used in the
heater. These are listed in the following table. As an example if you use the block for twelve 15mm test
tubes (e.g. block number F3506) you would place a needle in all the holes labelled C.
Only Sample Concentrators with the part number FSC496D or a replacement head part number 6106467
will have the 96 well array.
Tube size Hole array Hole label
& diameter
5 x 6 deep 30 A
4 x 5 deep 20 B
3 x 4 deep 12 C
8 hole off-set array, e.g. F4490 D
6
7
Press each needle firmly, pointed end first, through the guide holes and through the sealing pad behind
so that it is held firmly in position. Build up the desired pattern of needles to suit the arrangement of test
tubes to be used. Do not put a needle in any position which will not have a corresponding sample to be
concentrated as this will only waste gas. The needles may be removed and replaced many times as the
pad is self sealing.
FSC400D matrix plate
FSC496D matrix plate
8
PROCESSING OF SAMPLES
Warning - remember high temperatures are dangerous. The heater, insert blocks, sample vessels, needles
and samples may be very hot. Always take the precautions listed earlier in this manual.
1. By turning the carriage handle, on the right hand side, counter clockwise raise the gas chamber to
take the needles well away from the heater.
2. Place the sample vessels in the insert blocks and lower the chamber so that the tips of the needles
enter the test tubes. Position them at the required height above the liquid surface.
3. Set the heater to the required temperature and adjust the gas flow to the desired rate. Remember
not to exceed 2 psi.
4. To increase the rate of concentration the chamber may be lowered as evaporation takes place so that
the needles follow the level of the samples in the tubes. Using the scale on the column fine
adjustments are easily made.
5. On completion switch off the gas flow and raise the chamber out of the way.
6. For operation of the Dri-Block®see the user's manual supplied separately.
INSERTING THE NEEDLES
4. Replace the gas chamber onto the carriage and tighten the locking knob. Re-connect the gas pipe
if necessary.
A
B
B
B
B
A
A
A
D
C
C
E
D
A
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