Salt Bath 709 / 718 / 818
Installation and Operating Manual
North American Model
June 2019
Page
16
of
36
Charging (Filling) Your Salt Pot
Put on Your Personal Protective Equipment
Before approaching and working with the salt bath kiln wear all personal protective gear which includes a face shield, goggles, gloves, long sleeves of cotton or
leather (do not wear any synthetic clothing) and respirator (if required by salt choice).
Turn on Any Ventilation Systems
If you are using salts that require ventilation or are using a ventilation system for general purpose, turn it on now.
Charge (Fill) the Salt Pot with Your Heat Treat Salts
DO NOT MIX SALTS: Your salt pot should be charged (filled) with only one type of heating salts from the same source and ideally from the same container. Do not mix
salts from various sources or of different type. Mixing salts can be dangerous.
Pour half of the expected volume of your room temperature heat treat salts into the salt pot. Listed below are approximate final volume weights, so fill your pot with
half this amount to begin with.
Approximate Final Volume Salt Loads:
4” pot, filled to 18” depth will take about 17lb. (halve this for 9” fill on 13” pots)
5” pot, filled to 18” depth will take about 26lb. (halve this for 9” fill on 13” pots)
6” pot, filled to 18” depth will take about 38lb.
You will be heating up the half load to molten temperature and then adding additional salts to get the final volume. We recommend a final molten salt depth of no
more than chamber depth. We want to keep the surface of the molten salt at or below the bottom of the lid. The pot does/should extend beyond the lid but keeping
the molten salt level within the boundry of the heating chamber is what we’re after.
Powering Up the TAP Control
Plug the kiln in.
Throw the control power switch up to the On position. The control power switch is located at the top rear of the control panel.
The TAP control will illuminate, initialize and come to its home screen.
Operating the TAP Control
A separate TAP control manual has been supplied. Please refer to this manual for programming and use information.
TAP Control Manual Addendum
The TAP controller used on our salt bath models contains special software designed specifically for salt bath use. Chiefly, the ability to switch between the
Chamber Thermocouple and Immersion Thermocouple during use and a special Over-Temp thermocouple circuit designed to abort the process in the
event of over-temp (high limit). These items are not mentioned in the TAP control manual so we offer them here as an addendum.
You will note that the Execute (Run) screen display of the TAP control is slightly different than the description found in the TAP control manual. In order to
allow for the switching action between the chamber and immersion thermocouples we have removed the “Schedule Summary” key from the Execute
(Run) screen and have replaced it with a key named “Probe”. Probe is the key that you will press to select which thermocouple is being used as the
controlling or active thermocouple. “Controlling Thermocouple” means the thermocouple that is being used by the TAP control to the temperature.
