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a ramp-hold programme or tumblers at   

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An Orton-Paragon Sentry Xpress 4.0 Programmer. An Orton-Paragon Sentry Xpress 4.0 Programmer PCB. An Orton-Paragon Sentry 2.0 Programmer. A Bartlett-Paragon Sentinel SmartTouch Controller.

The Orton-Paragon Sentry Xpress 4.0 Digital Programmer.

Before February 2019, Paragon used three programmers: a 3-key Sentry Xpress 4.0 or a 12-key Sentry 2.0 programmer developed by the Orton Ceramic Foundation and Paragon, or a Sentinel SmartTouch touch-screen programmer developed by Bartlett and Paragon.

In February 2019, two of the programmers were modified, leading to the 3-key Sentry Xpress 5.0 and the 12-key Sentry 3.0 programmer. The modifications have little effect on the basic functionality so kilns might ship with the older programmers for some time.

All three are made as ramp-hold, or cone-fire and ramp-hold. Your kiln will have the appropriate programmer although, if it has a Sentry Xpress ramp-hold, you can upgrade to a cone-fire and ramp-hold. If the case is large enough, you can upgrade from a Sentry Xpress 3-key to a Sentry 12-key or a Sentinel touch-screen.

Generally, the programmers on bead annealing, enamelling, glass, jewellery, knife-making, and metal clay kilns have one firing mode: ramp-hold. And the programmers on ceramics, earthenware, porcelain, and stoneware kilns have two firing modes: cone-fire and ramp-hold.

Unlike calculators, programmers aren't made 10 million at a time. Although they look like fairly simple circuit boards, they have embedded sophisticated pre-loaded software that has taken years to develop and refine.

A Ramp-Hold Programme.

What Is A Ramp-Hold Programme?

This video is about setting a ramp-hold programme on the Sentry Xpress 4.0, but there are two more videos about setting a cone-fire programme and using the advanced features. UK-EU programmers will be configured to show degrees Celsius.

It's easy to use: far easier than a central heating programmer. Generally, you choose something with the left-hand key and use the other two to change the temperature or time up or down. You can set up, and re-use, four sequences of up to eight heating, holding, and cooling segments: and do something else whilst the sequence is running. Ramp-hold also allows you to programme slow heating and cooling: useful, for example, for annealing or controlling the colours of ceramic glazes.

The programmer runs a programme that you have set, or one that is in its memory from a previous firing. It's a sequence of ramps and holds, for example: it heats to 800°C at full speed then holds for 30 minutes. The sequence then ends, the kiln beeps, and cools in it's own time.

The ramp is the part where the temperature increases until it reaches the target temperature: the hold is the part where the temperature stays the same.

A ramp segment of a sequence controls the rate of heating or cooling. For example, the kiln can heat up at 200°C per hour from 200°C to 800°C, which would take three hours. Or, the kiln can cool down at 100°C per hour from 600°C to 200°C, which would take four hours.

The heating rate cannot exceed the rate at which the kiln would heat up if it was full on. The cooling rate cannot exceed the rate at which the kiln would cool if it was turned off. At full speed the elements are on all the time. During set ramps and holds they turn on and off repeatedly to maintain the heating rate, cooling rate, or temperature.

Don't work on your kiln on any surface that might get scratched. Unplug the kiln. In the factory, screws are put in tightly with an electric screwdriver. When removing them, use the correct-size screwdriver. As with any screw, the wrong size screwdriver can damage the head, making it difficult to remove. And, when refitting them, don't over-tighten them in case the thread strips.

Paragon Kilns, Furnaces, and Ovens For Annealing, Beads, Ceramics, Enamels, Glass, Jewellery, Knife Making, Lost Wax, Silver Clays, Heat Treating, Lampwork, Porcelain, And Vitrigraph.

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UK To EU Plug Adapter.
Ceramic Block.
Ceramic Cloth.
EU Plug.
UK-EU Adapter.
Dry Powder Extinguisher.
Glare Resistant Glasses.
HEPA Mask.
heat-resistant Gloves.
Kitiki Cutters.
Kitiki Flush Cutters.
Kitiki Flat-Nose Pliers.
Kitiki Pointed-Nose Pliers.
Kitiki Bent-Nose Pliers.
Kitiki Round-Nose Pliers.
Protective Glasses.
Potter & Brumfield Relay.
Dorset, SW England.
UK 13A Plug.
Large Rubber Drum 950gm Open
The AX-4 Digital Controller.
MiniKiln Closed.
Bartlett-Paragon Touch Screen Digital Controller.
Paragon BlueBird Bead Annealing Kiln.
Lauscha by Carrie Fertig.
Activated Charcoal Granules.
Paragon Caldera Ceramics And Glass Kiln.
Paragon Caldera Bead, Enamels, And Glass Kiln.
Paragon Crucible.
Paragon Fusion CS14D Glass Kiln.
Paragon Fusion CS14SB Glass And Bead Kiln.
Paragon Caldera XL Ceramics Kiln.
Paragon F500 Lampwork Kiln.
Paragon FireFly Ceramics Kiln.
Paragon Fusion 7 Glass Kiln.
Paragon Fusion 8 Glass Kiln.
Paragon GL18ADTSD Glass Kiln.
Paragon HT-14D Heat Treating Furnace.
Paragon Janus 1613 Ceramics Kiln.
Paragon KM18D Knife Making Oven.
Paragon-Orton Vent Master: Unassembled.
Paragon-Orton Vent Master: Suction Cup.
Paragon Pearl 22 Glass Kiln.
Paragon PMT21 Heat Treating Kiln.
Paragon Door Peephole And Vent.
Stainless Steel Pans.
Paragon SC-2 Black Jewellery Kiln.
Paragon SC2 Jewellery Kiln.
Paragon SC2B Bead-Door Kiln.
Paragon SC2W Enamelling Kiln.
Paragon SC4 Glass Kiln.
Paragon SC2BW Jewellery And Bead Kiln.
Paragon SC2D Pro-3 Jewellery Kiln.
Paragon SC2 Shelf Kit.
Paragon SC-2 Jade Jewellery Kiln.
Paragon SC-2 Black Jewellery Kiln.
Orton-Paragon Sentry Xpress Programmer.
Orton-Paragon Sentry Programmer.
Bartlett-Paragon Sentinel Touch-Screen Controller.
Paragon SC-2 Pink Jewellery Kiln.
Paragon SC-2 Pro Black Jewellery Kiln.
Paragon SC-2 Turqoise Jewellery Kiln.
Paragon SC-2 Purple Jewellery Kiln.
Paragon SC-2 Navy Jewellery Kiln.
Paragon SC-2 Berry Jewellery Kiln.
Paragon ST-8 Kiln Table.
Paragon Kiln Table With Casters.
Paragon TNF 1613 Ceramics Kiln.
Paragon GL24 Kiln Table.
Paragon Xpress 1613 Top Row Of Bricks.
Paragon W Lost-Wax Casting Kiln.
Paragon Lost-Wax Burnout Tray With Grille.
Paragon Lost-Wax Burnout Tray With Grid.
USB Plug.
Paragon Xpress E-12 Jewellery Kiln.
Paragon Xpress E-12B Bead Kiln.
Paragon Xpress E-14 Glass Kiln.
Paragon Xpress Q-11 Ceramics Kiln.
Paragon Vitrigraph Kiln.
Prometheus Pro-7.