Do not use a temperature control system with a power output rating lower
than the current rating of the furnace.
Use the same thermocouples as indicated on the setpoint controller.
Other types will result in faulty control which may cause damage from
overheated components.
When changing fuses in current limiting power controllers, use only the
fuse type and size specied by the power controller manufacturer.
Use interconnecting cables of the proper gauge to match the ratings on
the data labels for the furnace and controller.
Do not connect any measuring or controlling devices to the thermocouple
other than the main temperature controller.
Use thermocouple extension wires and connectors that match the
thermocouple type being used. Use of copper wires will cause errors in
readings and result in faulty control.
Do not allow the bare thermocouple wires or any part of the thermocouple
to come in contact with other metals. This could induce incorrect voltages
and result in erroneous readings and faulty control.
A.2 Environmental Conditions
The furnace is meant for use in laboratory/factory settings in a dry, clean work
environment. There should be a clean and sturdy work surface both at a reasonable
working height and away from any water, gas, or electrical hazards. The work surface
should be able to support more than the weight of the unit itself. The indoor area should
be well ventilated and containing no open ames or materials that may constitute a re
hazard.
• Temperature of 15° C to 35° C
• Relative humidity not more than 75%
• Air pressure of 75 kPa to 106 kPa
• No hard-frost, dew, percolating water rain, solar irradiation, etc.
Series 31XX, 32XX Furnaces | A. Safety 3
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