Cole Parmer BH-200 Series, Инструкция по эксплуатации

Страница: 6 / 40

5. Factors affecting
calibration and accuracy
In order to get the maximum accuracy from the
equipment and to ensure accurate calibration the
factors listed below should be considered as they
will all affect performance.
1. The base of the blocks and the heated surface
in the unit must be scrupulously clean to
ensure good contact.
2. The blocks should be pushed firmly together
to the right hand side of the recess
3. The thermal radiation from the blocks can be
affected by surface condition and affect
accuracy. The top surface should be kept
clean and shiny.
4. If the unit is used in an area of strong drafts
such as inside a fume hood there can be a
temperature gradient across the blocks. In
this case the safety cover should be used to
protect the blocks from the air flow.
5. During calibration the temperature probe used
should be a good fit in the hole in the block.
6. Removal of aluminium
blocks
N.B. Do not attempt to remove blocks until
the instrument has been switched off and
allowed to cool
The instrument is supplied with a special tool to
facilitate removal of the blocks.
This should be screwed into the thermometer
hole in the top of the block and then used to lift
the block clear of the instrument. An extension
piece is provided for use with long tubes.
There is a convenient storage groove located on
either side of the body casing – see figure 1.
7. Aluminium blocks and
accessories
The following range of aluminium blocks is
available. All are manufactured from anodized
aluminium and have an extra hole designed to
accommodate a thermometer if desired.
All blocks have dimensions (w x d x h) of 75 x 95
x 50mm and can be used in any combination.
The following accessories are available from
Antylia Scientific or its agents:-
Cat. No. Description
SBH/2
Safety cover, 2 block models
SBH/3 Safety cover, 3 block and dual control models
SBH/4 Block extraction tool
8. Electrical installation
THIS INSTRUMENT MUST BE EARTHED
Before connection please read and
understand these instructions and ensure
that the line supply corresponds to that
shown on the rating plate.
Power consumption is:
Model Power Frequency Fuses
BH-200-2 300 W 50/60 Hz F3.15 AL
BH-200D-2 300 W 50/60 Hz F3.15 AL
BH-200D-2-HT 300 W 50/60 Hz F3.15 AL
BH-200D-3 450 W 50/60 Hz F3.15 AL
BH-200D-3-HT 450 W 50/60 Hz F3.15 AL
BH-200DC-2 300 W 50/60 Hz F3.15 AL
BH-200D-2-HTC 300 W 50/60 Hz F3.15 AL
The instruments are fitted with an IEC socket at
the rear of the instrument for connection of the
mains lead. The IEC socket contains a pull out
draw containing the fuses and a mains on/off
switch - see figure 2.
Caution: Fuses fitted in both live and neutral lines.
Cat. No. Tube size No. Hole size, mm
(diameter /type) of holes (diameter x depth)
SHT1/0
Plain block - -
SHT1/10 10mm 20 10.5 x 47
SHT1/12 12mm 20 12.5 x 47
SHT1/12/33 12mm 20 12.5 x 33
SHT1/13
13mm 20 13.5 x 47
SHT1/16 16mm 12 16.6 x 47
SHT1/19 19mm 0 8 19.5 x 47
SHT1/20 2ml tubes 20 10.5 x 33
SHT1/21
Block with removable channels for
glass and disposable cuvettes.
SHT1/22 1.5ml tubes 20 10.7 x 14
SHT1/25 25mm 0 6 25.5 x 47
SHT1/28 28mm 0 6 28.0 x 47
SHT1/30
0.5ml tubes 30 7.8 9° taper
SHT1/30/1 30mm 0 4 30.1 x 47
SHT1/33 33mm 0 4 33.2 x 47
SHT1/48 0.2ml tubes 48 6.1 9° taper
SHT1/80
0.2ml strip tubes 10 x 8 -
SHT1/96 96 well plate - 7.5 9° taper
SHT1/384 384 well plate - 3.6 9° taper
4