MFS
I
NSTALLATION
2.1 Unpacking & Handling
When unpacking or handling the oven always lift it by its case. Do not apply lifting force to a
door or any other protruding part.
Remove any packing material from the oven chamber(s) before use.
2.2
Siting & Setting Up
Place the oven in a well ventilated room, away from other sources of heat, and on a surface which
is resistant to accidental spillage of hot materials. Do not mount the oven on an inflammable
surface.
Ensure that there is free space around the oven. Do not obstruct any of the vents in the case: they
are needed to keep the controls and the case exterior cool.
Ensure that the oven is placed in such a way that it can be quickly switched off or disconnected
from the electrical supply - see below.
Each chamber is fitted with an air guide (a horizontal plate dividing the top from the bottom), and
a sample tray (in the lower part of the chamber). Ensure that these items are present. Do not
remove the guide - it is required for correct gas flow within the unit.
2.3
Electrical Connections
Connection by a qualified electrician is recommended.
The oven requires a single-phase A.C. supply with earth (ground). The supply may be Live to
Neutral non-reversible, Live to Neutral with reversible plug, or Live to Live.
The voltage or range of voltages on which the oven may be operated is given on the oven rating
label and on the cover of this manual (if supplied with the oven). Check that the supply voltage is
compatible with the voltage on the label, and that the current capacity is sufficient for the
amperage on the label, before connection to the supply. See also section 8.0.
The oven is normally supplied fitted with a supply cable; it may be wired directly to the supply
point, which must be within reach of the oven operator and must incorporate either an isolating
switch which operates on both conductors, or a quickly removable plug.
The supply MUST incorporate an earth (ground).
Single phase: connect the supply as follows:
supply type
Cable colour
Terminal
label
Live-
Neutral
Reversible or
Live-Live
Brown
L
to live
to either power
conductor
Blue
N
to neutral
to the other power
conductor
Green/Yellow
PE
to earth
to earth
2.4
Gas Connections (MFS/1)
The upper gas connection at the back of the oven is the nitrogen inlet, supplying gas to the left
hand flowmeter whose valve may be adjusted to set the nitrogen flow rate in accordance with the
requirements of the test standard.
The lower gas connection is the combined outlet from the two exhaust paths from the chamber.
The first of those paths goes from the chamber through the right hand flowmeter to the exhaust
port.
MF14
3
