LABO VEN S.IN S.7-18.wpd
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07/18
5
PROCESSING
5-1
DO NOT LEAVE THIS EQUIPMENT IN OPERATION UNATTENDED
W hen using any heat processing equipment there is always the risk of overheating
due to a com ponent malfunction. A trained operator should always be present. If
this is not possible, the oven should be located where overheating will not cause
damage to the building, adjacent stock or endanger personnel. Special
consideration should be made for the potential of smoke damage should a fire
ensue. Fire suppression equipment should be installed to protect the oven and
building.
5-2
W hen loading an oven care must be taken to avoid touching or insulating the
thermocouple or temperature sensor. Free air movement around this sensor is
essential for safe and correct temperature control.
5-3
Do not overload the oven. Air circulation is very important to the proper operation of
an oven. For maximum uniformity, the work should be placed in the middle of the
oven work space and room (1" to 1-1/2") left around the work for vertical air
movement.
5-4
The inside walls of the oven are equipped with perforated strips and clips to adjust
the shelf height to the most desirable height for your process. However, do not place
the bottom shelf closer than 2" from the perforated oven bottom.
5-5
This oven is designed for shelf loading, parts must not be placed on heat chamber
guard at bottom of work space. This surface could be hotter than air temperatures
and it is not designed to support a load. Do not cover heat chamber guard at bottom
of work space as this will trap heat in the heat chamber and result in excessive
temperature in heat chamber.
5-6
Leave space between articles on each shelf to allow air to move between parts.
5-7
Parts should be staggered from one shelf to another, to prevent dead spots in the air
pattern.
5-8
For drying applications, the air circulation damper should be fully open to allow
moisture to escape and be replaced by dry room air. For maximum temperature,
close the air circulation damper to reduce heat losses. In the medium and lower
temperature ranges of the oven, better temperature uniformity will be obtained with
the circulation damper open.
5-9
To turn oven on, push top of on-off switch in. W hen the oven is not in use, the on-off
switch must be turned OFF - bottom pushed in. Do not rely on the thermostat to
interrupt power to the heating elements indefinitely.
5-10
EMERGENCY SHUT DOW N:
-press power switch to "OFF" - bottom pushed in
-unplug oven
-disconnect power to oven at disconnect switch or circuit breaker
