2-5
Clean dry process gas with a maximum recommended dew point of -100
ºF (-73 ºC), is to be connected to the machine with ¼-inch minimum
(0.64 cm) inside diameter lines. The supply pressure is to be externally
regulated: 75 psig minimum (5.3 kg/cm
2
), not to exceed 90 psig (6.3
kg/cm
2
). Note: Connections are ¼”-NPT.
If the machine will be used with the N
2
/formic acid option, the source is
to be connected at the “GAS 2” port only using ¼-inch (0.64 cm) outside
diameter corrosion resistant tubing. Polyethylene, polypropylene, or
stainless steel tubing can be used with the supplied compression fittings.
The supply pressure to the machine is not to exceed 15 psig (1.06 kg/cm
2
)
and the acid gas mixture must never exceed 4 % acid by weight;
additionally the gas generator must be equipped with a condensing
mechanism to prevent liquid acid from entering the machine.
Caution! Liquid formic acid must never enter the machine. Internal
components will be damaged from highly concentrated acid, voiding the
warranty.
2.2.4 Installation of Heating Element
The system is shipped with the heating element and insulators packed separately
to avoid damage. Before operating the furnace, these items must be installed.
Refer to Figure 5.4.14.
Remove the radiator shield (Item 2) from the chamber by removing three screws
(Item 10). Remove the insulators (Item 37), nuts (Item11) and washers (Item 12).
Install the 2 long insulators (Item 4) in the slots provided in the support (Item 6).
Carefully place the heating element (Item 3) on the insulators and over the
electrodes (Item 5). Replace all parts that were removed.
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