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Salt Bath 709 / 718 / 818 

Installation and Operating Manual 

North American Model

 

 June 2019 

 

Page 

3

 of 

36

 

 

 
Electrical Safety 

 

Model SB 709 electrical service requirements: The SB 709 consumes 18A at 120V and uses a NEMA 5-20 plug/receptacle configuration. A “fully rated” 20A 
breaker is required. 
 
Model SB 718 electrical service requirements: The SB 718 consumes 18A at 240V and uses a NEMA 6-20 plug/receptacle configuration. A “fully rated” 20A 
breaker is required. 
 
Model SB 818 electrical service requirements: The SB 818 consumes 30A at 240V and uses a NEMA 6-50 plug/receptacle configuration. 
 
A licensed electrician should be used for all electrical installation and service. All applicable local, state and federal electrical codes must be followed. 
 
Use correct voltage, wire size and fuse or breakers (fully rated 20A breaker required on the SB 709 and SB 718). Kiln electrical requirements are located on 
the kiln nameplate. Make sure all electrical connections are tight. Avoid using aluminum wire. 
 
Always use the proper electrical receptacle. Never alter the kiln cordset or cordset plug. Alterations can be dangerous. Alterations will void any warranties. 
 
The salt bath kiln electrical service must be properly grounded.  
 
The salt bath process involves an electrically conductive salt pot, electrically conductive salt material, electrically conductive work-piece, electrically 
conductive work-piece holder, electrically conductive thermocouples and, most importantly, 

an electrically conductive you! 

Everything about the salt bath 

kiln is electrically conductive. It’s for this reason that we provide and require electrical grounds on the kiln, salt pot and thermocouples. In the event of an 
electric short these grounding mechanisms safely dissipate the electrical energy. Pay attention to them, inspect them periodically and do not defeat them. 
 
Evenheat recommends that a voltage check be performed before placing the kiln into service, ideally before actual purchase. Operating voltage varies. The 
kilns operating voltage (printed on the kilns nameplate) must match the applied voltage (actual electrical service voltage). If it does not, do not install or 
operate the kiln as potential electrical and fire hazards exist. Contact Evenheat for guidance in such cases. 
 
 
Unplug or disconnect the kiln from the electrical service before accessing the chamber for servicing or vacuuming. Do not attempt to touch or replace the 
heating elements while the kiln is plugged in or connected to the electrical service. Electric shock may result in serious injury or death. 
 
Never, ever use an extension cord to operate a kiln. 

 
 

Salt Bath Kiln Location Safety 

 
Do not place or use the kiln on a combustible surface. 
 
Do not install the kiln closer than 12” (31cm) from wall surface or object or 36” from any ceiling surface. All wall and ceiling materials shall be   
made of non-combustible materials. 
 
Place only on the metal stand provided by Evenheat Kiln, Inc. 
 
The surface on which the kiln is placed shall be level and capable of safely supporting the combined weight of the kiln, kiln load and any operating 
personnel. 
 
Observe all building, fire and safety codes when installing the kiln. 
 
Install in a covered, well ventilated area. 
 
Installation of a venting system may be necessary depending upon the type of heat treating salts you are or will be using. Consult with the manufacturer of 
the salts and the material safety data sheet for recommendations regarding ventilation. 
 
Never place the kiln in a small, enclosed area such as a closet, cabinet or very small room. The room in which the kiln is placed into service shall be capable 
of safely dissipating all heat produced by the kiln. 
 
Do not place the kiln in any structure resembling a carport or screened in porch. Avoid areas that are subject to outdoors weather. 
 
Never install a kiln outside. Avoid moisture. 
 
Do not use  or install liquid based fire-fighting equipment such as water  sprinklers or extinguishers. Carbon dioxide type fire extinguishers and sand are 
acceptable  means  of  fire-fighting  in  and  around  the  salt  bath  kiln  location.  It  is  recommended  that  these  fire-fighting  methods  are  present  and  are 
immediately available for use. 

Содержание Salt Bath 709

Страница 1: ...and Floor Easily Replaced 26 Charging Filling Your Salt Pot Salt Bath Maintenance 27 Put on Your Personal Protective Equipment 16 Salt Leaks 28 Turn on Any Ventilation Systems 16 Replacement Parts Li...

Страница 2: ...ach Explosion Pressure Release Hazard This symbol alerts you to potential explosion and pressure release hazards Electric Shock Hazard This symbol alerts you to potential electric shock hazards Burn H...

Страница 3: ...es The kilns operating voltage printed on the kilns nameplate must match the applied voltage actual electrical service voltage If it does not do not install or operate the kiln as potential electrical...

Страница 4: ...ork piece holders must be constructed of carbon steels or stainless steels Do not attempt to heat treat any coated or plated steel Coatings and plating s include but are not limited to zinc galvanized...

Страница 5: ...gn that you insert the Immersion thermocouple into the salt bath and control from the Immersion thermocouple Never fire a kiln unattended Do not attempt to insert any thermocouples or any other device...

Страница 6: ...he ground connection at the salt pot is prone to corrosion with use Periodic inspection shall be made to ensure a sound electrical connection between the salt pot salt pot grounding lug hardware and t...

Страница 7: ...North American Model June 2019 Page 7 of 36 Make a Square by Placing Frame Angles as Shown Attach Each Leg Using the Included Nuts and Bolts as Shown Place Plastic Feet on Each Leg as Shown Completed...

Страница 8: ...thermocouple 1 8 diameter Inconel sheath bent at 90 Supplied with standard sized male thermocouple connector Note the grounding wire connected to the Inconel sheath This ground wire will be connected...

Страница 9: ...Inconel sheath assembly and a 30 Type K lead assembly Both assemblies are supplied with standard sized male and female connectors Note the grounding wire connector on the thermocouple assembly and th...

Страница 10: ...10 of 36 Chamber thermocouple assemblies properly assembled Insert the Chamber thermocouple into the chamber through the left rear corner as shown An insertion hole has been provided Plug the Chamber...

Страница 11: ...ector on the thermocouple assembly and the green grounding wire included with the lead assembly The immersion thermocouple is also supplied with thermocouple mount The thermocouple mount properly plac...

Страница 12: ...stud as shown At this point all 3 thermocouple grounds are attached to the ground stud Salt Pot Ground Strap Installation to Control Panel The salt pot is grounded to the control panel via a ground st...

Страница 13: ...r other contaminants before using Salt pots should include a 0 250 hole 0 750 from the top of the pot This hole is designed to fit 20 hardware for the grounding lug Salt Pot grounding lug hardware att...

Страница 14: ...ed and centered push the Over temp and Chamber thermocouples back into the chamber As noted earlier you may elect to allow the chamber thermocouple to make contact with the salt pot or not If not pull...

Страница 15: ...d Strap Installation to Salt Pot Grounding Lug Connect the salt pot grounding strap to the salt pot ground lug as shown The connection should be tight We like to place the salt pot grounding lug point...

Страница 16: ...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 boun...

Страница 17: ...time that you will perform your heat treating process The amount of hold time depends upon the amount of time you expect your heat treat session to last Keep in mind that you can always abort the hea...

Страница 18: ...control from that thermocouple Be sure at least 1 of the Immersion thermocouple is immersed within the molten salt If it isn t yet continue to add salts until it does and then proceed with this step A...

Страница 19: ...you do plan to perform a heat treat session please read the following section entitled Standard Everyday Use for operational information Proper Shutdown When shutting down the salt bath heat treat kil...

Страница 20: ...examine the firing data for correctness prior to committing to the process When developing a heat treat program we recommend that you not create any heating rates faster than 1000 F per hour Heating t...

Страница 21: ...esulting in the molten salts being violently expelled out of the salt pot and into the surrounding area This presents a burn and fire hazard as well as potential personal injury or death Immersion The...

Страница 22: ...uple is being used for control After about 10 minutes of screen inactivity a large text screen appears and Immersion is prominently displayed You may switch back and forth between the Chamber and Imme...

Страница 23: ...s to be steel wire Whatever suspension method you do decide on it must be made of steel We would mention that we are not aware of any useful technique that simply places the work piece into the salt b...

Страница 24: ...mbustible material We would suggest that you use care to avoid allowing dragout to run down the outside of the salt pot The refractory fiber gasketing material tends to stop the salts from reaching th...

Страница 25: ...enerally it s better to try to keep it off the wall and surrounded with molten salt Over Temp Thermocouple Circuit Salt bath kilns include a dedicated over temperature thermocouple circuit The role of...

Страница 26: ...Swing View allows for swiveling between a comfortable programming and use angle to a vertical position well suited for viewing at a distance across the shop We recommend placing the TAP control at the...

Страница 27: ...The salt pot ground consists of a braided ground strap that is attached at both the salt pot and control panel Keep a close eye on the end that is connected to the salt pot Look for any loose connecti...

Страница 28: ...lt pot leak may result in a short circuit with a corresponding trip of breakers or fuses It s for this reason that we supply grounds on the entire kiln chamber control panel thermocouples and salt pot...

Страница 29: ...els SB 709 and SB 718 Repair Ring 07276 000 Elemented Brick Section for model 818 Repair Ring 07276 005 Lid for models SB 709 and SB 718 No Hole 00342 300 Lid for models SB 709 and SB 718 for 4 Pot Ho...

Страница 30: ...Model June 2019 Page 30 of 36 Du Bois Chemicals Co gives the following melting point and working temperature range for Nu Sal as Melting Point 1230 F 665 C Working Temperature Range 1300 1650 F 704 89...

Страница 31: ...Salt Bath 709 718 818 Installation and Operating Manual North American Model June 2019 Page 31 of 36 Nu Sal SDS page 2 of 7...

Страница 32: ...Salt Bath 709 718 818 Installation and Operating Manual North American Model June 2019 Page 32 of 36 Nu Sal SDS page 3 of 7...

Страница 33: ...Salt Bath 709 718 818 Installation and Operating Manual North American Model June 2019 Page 33 of 36 Nu Sal SDS page 4 of 7...

Страница 34: ...Salt Bath 709 718 818 Installation and Operating Manual North American Model June 2019 Page 34 of 36 Nu Sal SDS page 5 of 7...

Страница 35: ...Salt Bath 709 718 818 Installation and Operating Manual North American Model June 2019 Page 35 of 36 Nu Sal SDS page 6 of 7...

Страница 36: ...Salt Bath 709 718 818 Installation and Operating Manual North American Model June 2019 Page 36 of 36 Nu Sal SDS page 7 of 7...

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