Stafford Instruments Blog
News and Updates
Kilnsitter upgrade Kit
Published by DW in Kilnsitter Upgrade • 13/07/2010 19:34:43
Upgrading your Kiln Sitter with a ST222 Plug in Kiln Controller:
How can a ST222 Kilnsitter Upgrade Kit help you?
It can save you time and energy and allow you to get consistent firings. You can choose a pre-programmed firing mode that allows you to determine how fast you want to fire, how long you want the kiln to preheat, which temperature(s) you want to fire to and how long you want to hold the kiln at these temperatures.You can choose the kilns final temperature and soak. Not only can you control heating ramps and soaks but also cooling ramps and soaks. This makes it much easier if you are working with complex glass firing. With a ST222 multi program multi-segment controller / programmer you can program every step of the firing yourself to your own specific needs.
Nowdays when you buy a kiln whether it be a top loading or front loading kiln, it normally comes fitted complete with a Kiln Temperature controller. The controller may be “Hard Wired” in to the kiln control equipment tray, or it may be detachable, that is fitted with a plug that can allow the controller to be disconnected from the socket fitted to the kiln. Replacing the controller is relatively straight forward as the wiring will already be in place and a thermocouple will be fitted to the kiln. So far so good. But what if your existing kiln is fitted with a kiln sitter?
1. There will be no thermocouple fitted.
2. There will be No control equipment fitted in the equipment tray or box. i.e. no contactors (Heavy Duty Power Switching Relays) or associated wiring.
3. No Kiln socket to connect a new controller with fitted plug to.
4. Having your kiln upgraded to a multi program multi-segment controller will be costly. Not only will you need a new controller and thermocouple. Your kiln wiring will have to be modified and contactor(s) will have to be fitted by a skilled electrician and or Kiln Technician. Special SIFF wiring will have to be used to withstand the heat generated in the control gear tray. ( Most Electricians have difficulty in obtaining this type of wire and tend not to want to involve themselves with kilns).
HOW IT WORKS
The exisiting Kiln power cable fitted with a 13A plug is plugged into the controllers 13A Socket.
The controllers 13A power lead is plugged into a domestic 13A socket
The supplied themocouple has to be inserted into the kiln firing chamber. This can be done either byputting it through a spy hole or through a carefully drilled hole through the kiln wall and firebrick. The thermocouple should be preferably fitted with an adjustable flange. This will allow the thermocouples insertion depth to be set to the optimum 3.5 – 5 cm inside the firing chamber. The flange has holes drilled in it to allow easy fixing to the outside of the kiln case (self tapping screws)
Next the Kiln Sitter has to be over-ridden. Place a small cone (milli-bar) into the kiln sitter that is two cones higher in value than your maximum target temperature. Next make sure that the timer has enough time in hours to complete the programmed firing
Finally set all the kiln switches and energy controls on maximum before starting the firing. The controller will when started fully control the kiln.
Do you want a full Turnkey Solution?
Stafford Instruments offer the ST222 13A Plug in controller, having 9 programs and 9 segments (each segment can be a controlled heating or cooling ramp followed by a soak) on special offer right now. For £295 including VAT and delivery you can have a controller, mounting bracket, 6" “R” type Labhead thermocouple complete with cable and plug delivered to your door.
Click on the link below for more Details
http://www.stafford-inst.co.uk/st222kit.html
How can a ST222 Kilnsitter Upgrade Kit help you?
It can save you time and energy and allow you to get consistent firings. You can choose a pre-programmed firing mode that allows you to determine how fast you want to fire, how long you want the kiln to preheat, which temperature(s) you want to fire to and how long you want to hold the kiln at these temperatures.You can choose the kilns final temperature and soak. Not only can you control heating ramps and soaks but also cooling ramps and soaks. This makes it much easier if you are working with complex glass firing. With a ST222 multi program multi-segment controller / programmer you can program every step of the firing yourself to your own specific needs.
Nowdays when you buy a kiln whether it be a top loading or front loading kiln, it normally comes fitted complete with a Kiln Temperature controller. The controller may be “Hard Wired” in to the kiln control equipment tray, or it may be detachable, that is fitted with a plug that can allow the controller to be disconnected from the socket fitted to the kiln. Replacing the controller is relatively straight forward as the wiring will already be in place and a thermocouple will be fitted to the kiln. So far so good. But what if your existing kiln is fitted with a kiln sitter?
1. There will be no thermocouple fitted.
2. There will be No control equipment fitted in the equipment tray or box. i.e. no contactors (Heavy Duty Power Switching Relays) or associated wiring.
3. No Kiln socket to connect a new controller with fitted plug to.
4. Having your kiln upgraded to a multi program multi-segment controller will be costly. Not only will you need a new controller and thermocouple. Your kiln wiring will have to be modified and contactor(s) will have to be fitted by a skilled electrician and or Kiln Technician. Special SIFF wiring will have to be used to withstand the heat generated in the control gear tray. ( Most Electricians have difficulty in obtaining this type of wire and tend not to want to involve themselves with kilns).
HOW IT WORKS
The exisiting Kiln power cable fitted with a 13A plug is plugged into the controllers 13A Socket.
The controllers 13A power lead is plugged into a domestic 13A socket
The supplied themocouple has to be inserted into the kiln firing chamber. This can be done either byputting it through a spy hole or through a carefully drilled hole through the kiln wall and firebrick. The thermocouple should be preferably fitted with an adjustable flange. This will allow the thermocouples insertion depth to be set to the optimum 3.5 – 5 cm inside the firing chamber. The flange has holes drilled in it to allow easy fixing to the outside of the kiln case (self tapping screws)
Next the Kiln Sitter has to be over-ridden. Place a small cone (milli-bar) into the kiln sitter that is two cones higher in value than your maximum target temperature. Next make sure that the timer has enough time in hours to complete the programmed firing
Finally set all the kiln switches and energy controls on maximum before starting the firing. The controller will when started fully control the kiln.
Do you want a full Turnkey Solution?
Stafford Instruments offer the ST222 13A Plug in controller, having 9 programs and 9 segments (each segment can be a controlled heating or cooling ramp followed by a soak) on special offer right now. For £295 including VAT and delivery you can have a controller, mounting bracket, 6" “R” type Labhead thermocouple complete with cable and plug delivered to your door.
Click on the link below for more Details
http://www.stafford-inst.co.uk/st222kit.html