DynaTrol Multi-Program Zone Control

Main Features

Four Easy Programs

  • Slow Bisque, Fast Bisque, Slow Glaze and Fast Glaze preset program. Change the cone level and add a Hold time, Delay and Candling time if desired.

Six User-Defined Programs

  • Up to eight segment (with one ramp and soak per segment) in each program. Very flexible.

Delay Time

  • Control when kiln starts and stops.

Preheat

  • "Candling" fires kiln at 180°F for a time that you set.
  • Completely dry out ceramic work before the main cycle begins.

Hold

  • Control end of firing.
  • Hold the final temperature for a time that you control.

Cone and Thermocouple Offsets

  • Let you fine tune your firings.

Dynamic Zone Control

  • The DynaTrol features Dynamic Zone Control with three separate loops of control.
  • The DynaTrol separately measures temperatures in the bottom, middle and top of the kiln and automatically adjusts the heat output of three separate heating zones even as the kiln is heating up.
  • Kiln temperatures are automatically evened out to within 1/2 cone or better top to bottom.
  • There are separate thermocouples (heat sensors) and contactors (power controls) for each of the three zones.
  • You may place your load to best advantage without regard to temperature differences.
  • There are adjustable offsets for each thermocouple which allows you to adjust uniformity within the kiln and match control performance with actual witness cones.

Other Important Features of the DynaTrol

Four "Easy-Fire" Preset Firing Profiles

  • This makes it easy to fire ceramics.
  • Even people who are shy of programming can work with this control.
  • Slow Bisque, Fast Bisque, Slow Glaze and Fast Glaze all have time proven profiles for the vast majority of ceramic firing.
  • Just enter cone number and optional delay time, soak time, candling time and alarm.

Six User-Defined "Vary-Fire" Profiles

  • This allows you to have 6 separate repeatable stored programs with up to 8 segments (cooling or heating ramps, temperature setpoint and an optional hold time per segment).
  • The DynaTrol allows you to soak at a low temperature for a long time (i.e. you can have an automatic drying period) and then automatically ramp up to your high fire at different rates.
  • You can ramp slowly through critical periods or soak at end point temperatures for more consistent maturing of work. It also allows a controlled cool-down to avoid heat shock.
  • You can link two of these profiles to make one 16 segment program.

Controlled Cool down After Easy-Fire Program

  • It is possible to link a Vary-Fire program that controls the cool down of the kiln to the end of an Easy-Fire program.
  • This allows you to use the great Orton software that adjusts the final set point of the kiln based on heat-work but still be able to control your cool down for large work or for maturing glazes properly.

Delay Start by up to 99 hours, 99 minutes

  • Allows you to plan end of firing conveniently.
  • This can also be useful for saving energy costs by firing kiln with night electric rates.

"Candle" (low temp soak) at 180°F

  • You can do this for up to 99 hours, 99 minutes to dry ware thoroughly.
  • This great feature can save your pots from blowing up (water expands 1170 times when it turns to steam).

Soak at Final Set Point

  • You can do this for up to 99 hours, 99 minutes.
  • Soaking can dramatically improve firing results.
  • It is hard to do on a manual kiln.

PID Tuning Control

  • Sophisticated mathematical functions in the control work behind the scenes to minimize temperature overshoot. This is optimized for the ceramic process.

Thermocouple Offset

  • This allows you to individually bias thermocouples to adjust for thermocouple drift or kiln uniformity adjustments.

Cone Offset

  • This allows you to match the "Easy-Fire" cone set points to your real firing experience.

Program Review

  • See the entire program before or while running it.

Segment Review

  • Lets you review the segment you are on.
  • Also shows you what your current set point is during the program as it is changing.

Audible Temperature Alarm

  • This can alert you at any point in program.
  • For instance the control can alert you that the kiln is close to maturity so you can watch it reach final set point or use it to tell you when to turn off the vent.

Change of Program During Firing

  • Make adjustments as needed.

Last Temperature Reached

  • This is shown at end of Easy-Fire program.

Cone/Temperature Equivalent Look Up Table

  • Convert cone numbers to degrees.

Dust-Sealed Panel

  • Graphically numeric keypad makes programming easy.

Error Checking can be turned off

  • Error checks include stopping program if kiln is rising too slowly or if one zone is 100°F off set point as well as other error checks.

Automatic Restart

  • This occurs after brief power interruption with alert. Control logic determines whether it is better to continue or shut down.

Thermocouple Burnout Protection

  • Kiln shuts down automatically if all thermocouples burn out. Kiln continues to fire if one or two thermocouples burn out.

Two Key Start

  • Optionally configure the control so it requires you to press two buttons to start it.

Digital Indication

  • Configure temperature in either degrees F or C.
  • Scroll through all three thermocouple readings to see what each zone is doing.

Cold Junction Compensation

  • Automatically compensates for varying ambient temperatures to make control more accurate.
  • Control can operate in ambient temperatures of 32°F to 125°F (0°C to 50°C).
  • Segment review button lets you see ambient board temperature.

Electronic Control Matches Pyrometric Cone Performance

  • This feature, licensed from Orton (Patent 4,461,616 & 4,730,101), adjusts the final temperature reached in an Easy-Fire profile based on the speed of the actual firing.
  • It results in accurate automatic control of heat-work in ceramic firing.

Number of Zones is Programmable

  • You can easily change the control from a three zone to a two or even single zone control.
  • This is useful on L&L's unique sectional kilns where you can remove or add sections.

Monitor DynaTrol from a Computer

  • KISS Software package, 25 foot cable and RS485/232 converter that plugs into a Windows based computer are available.
  • Monitor up to 50 kilns.
  • Download profiles, chart/graph actual firing, monitor kiln temperatures all in Windows.

 

Optional Type S Thermocouples

  • The standard thermocouple used on the DynaTrol is Type K.
  • Even though our 8 Gauge thermocouples with industrial mullite protection tubes are very good, the very best thermocouple for constant high fire applications is a Type S platinum thermocouple with an alumina sheath.
  • You can special order a DynaTrol with Type S thermocouples.

Extra Images

DynaTrol Multi-Program Zone Control
DynaTrol Multi-Program Zone Control