4. Preparation for use
4.1 Electrical installation
THIS INSTRUMENT MUST BE EARTHED
Before connecting the instrument please read
and understand these instructions and ensure
that the electrical supply corresponds to that
shown on the rating plate. This unit is designed
for use with a supply rated at 115 / 230V,
50-60Hz. The power consumption of the unit is
60W. The unit is fitted with an IEC socket at the
rear of the instrument for connection of the
mains lead.
Caution: Fuses are fitted in both live and
neutral lines.
The unit is supplied with two mains leads fitted
with IEC plugs for connection to the instrument.
One lead has a UK 3 pin plug and the other has
a 2 pin “Shuko” plug for connection to the
mains supply. Choose the lead appropriate for
your electrical installation and discard the other.
Should neither lead be suitable take the lead
with the UK plug and replace the plug with a
suitable alternative. This involves cutting off the
moulded plug, preparing the cable and
connecting to the rewireable plug in accordance
with its instructions.
IT IS IMPORTANT THAT THIS OPERATION
SHOULD ONLY BE UNDERTAKEN BY A
QUALIFIED ELECTRICIAN.
Note: Refer to the equipment’s rating plate to
ensure that the plug and fusing are suitable for
the voltage and wattage stated. The wires in the
mains cable are coloured as follows:
LIVE -BROWN
NEUTRAL -BLUE
EARTH -GREEN/YELLOW
The appropriate mains lead should be connected
to the instrument BEFORE connection to the
mains supply.
Should the mains lead require
replacement a cable of 1mm
2
of harmonised
code H05VV-F connected to an IEC320 plug
should be used.
2
N.B. The UK mains lead is protected by a 10A
fuse mounted in the plug top.
IF IN DOUBT CONSULT A QUALIFIED
ELECTRICIAN
4.2 Connect to the electricity supply-
DO NOT SWITCH ON
4.3 Place the unit on a firm, level, non-slip
surface ensuring that there is sufficient free
space on all sides without coming into
contact with anything else during use.
4.4 Switch the unit ON at the mains On/Off
switch on the back of the instrument. When
switched ON, the LCD display and the
sample chamber will illuminate.
WARNING: The sample block may
become hot.
5. Operation
5.1 Controls
Figure 1 and 2 show the features for the
MP-400.
Mains On/Off:
This is a rocker type switch.
Pressing the “I” switches the unit ON. Pressing
the “O” switches the unit OFF.
RS232 Printer Output:
The MP-400 can be
connected via the 5 pin mini-DIN socket to a
suitable optional accessory serial printer to
enable a printout of the results to be obtained.
Sample Block:
This aluminium block can hold
three capillary sample tubes.
Capillary Storage:
A compartment is provided
for the storage of the glass capillaries used in the
melt determinations. This compartment also
incorporates a glass capillary cutter.
Viewer:
Comprises a magnifying lens encased
in a plastic eye viewer and allows the “Head Up”
temperature display to be viewed via the eye
viewer.
