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Dual Furnace Models M17705, N17706 & 17707 Iss.09 – 12/14
OPERATIONAL CONVENIENCE
Until the advent of the dual furnace, the handling of thermometers was treated as a separate problem, or ignored.
With the dual furnace, thermometers can be stored, pre-warmed, calibrated and annealed in one comprehensive
facility, without introducing contamination or strain.
The two furnaces in each dual furnace have independent temperature controllers and independent adjustable over-
temperature cut-outs for added security. These features are shown in the wiring diagram.
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