Techne DB200-3 - Manual (Page 21)

21
OPERATION
INSTALLATION
See also the sections on Safety and Installation.
1. Place the unit on a suitable flat bench or in a fume cupboard if required, ensuring that the air inlet
vents on the underside are free from obstruction.
2. Select the insert aluminium alloy block(s) appropriate for the application. A list of available blocks
is given in the section ‘Accessories’. Ensure that both the underside of the block(s) and the top of
the hotplate are clean; efficient heat conduction between these two surfaces is essential.
Top view showing three insert blocks in place
3. Place the insert blocks onto the hotplate in the well of the unit and place the tubes containing the
sample liquid in the blocks.
4. The heater design, temperature sensor and control circuit give good temperature control and
uniformity, but it is important that there is a close fit of the tubes in the block to allow efficient heat
transfer.
5. If less than the maximum number of insert blocks are fitted it is recommended that plastic half
blocks (part code F4466) are fitted to the space either side of the aluminium block. The half blocks
have the effect of reducing heat loss, thus improving temperature stability.
Rear view
1. Power ON/OFF switch.
2. Mains cable socket.
6. Plug the mains cable into the socket in the rear of the unit. Connect to the mains electricity supply
with the plug provided or one wired correctly for your supply. Switch the power ON from the switch
located next to the mains input lead. The front display will then light up.