Techne DB200-3 - Manual (Page 26)

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ADDITIONAL INFORMATION
Note that this equipment should only be dismantled by properly trained personnel. Removing the
outer cover exposes potentially lethal mains voltages. There are no user serviceable parts within this
equipment.
FAULT FINDING
Should you have any problems with your Dri-Block ® heater which cannot be easily remedied, you
should contact your supplier and return the unit if necessary. Please include details of the fault
observed and remember to return the unit in its original packing. Bibby Scientific Ltd. accepts no
responsibility for damage to units which are not properly packed for shipping: if in doubt, contact your
supplier, giving the full serial number of the unit.
FUSES
If the display on the front panel is not lit, one of the two fuses may have blown. Check that there is no
external cause, such as a faulty plug or lead. Check both fuses and replace the faulty fuse with a
new one of the correct value (fuse values are given on the label next to the power inlet). Note that
fuses should only be replaced by a qualified electrician.
The holder for the two fuses is built into the mains input socket. First remove the power cable and
then gently prise the fuse drawer open with a flat-bladed screwdriver or similar tool. Each fuse can be
removed by using the screwdriver as a lever.
Exchange the faulty fuse in the fuse holder for a working fuse of the correct value. Finally, replace
the fuse drawer in the fuse compartment and push the drawer shut. Fuses which blow repeatedly
indicate a serious fault and you should return the unit to your supplier for repair.
Model
Fuses for 230V Fuses for 115V
DB100/2 2 x 3.15 Amp 2 x 4.00 Amp
DB100/3 2 x 3.15 Amp 2 x 6.30 Amp
DB100/4 2 x 4.00 Amp 2 x 6.30 Amp
DB200/2 2 x 3.15 Amp 2 x 4.00 Amp
DB200/3 2 x 3.15 Amp 2 x 6.30 Amp
DB100/2TC 2 x 3.15 Amp 2 x 4.00 Amp
SAFETY OVER-TEMPERATURE CUT-OUT
In the event of a fault occurring which could cause the heater to over-heat, a thermal fuse will cut in
and remove power from the heater. This will occur when the temperature reaches approximately
192°C in the DB100 models and 240°C in the DB200 models.