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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 now possible (with the new version of the DynaTrol) 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. This is a feature that could become very important.
Candle (low temp soak) at 200°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.
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.
Adjustable Lag
Adjust the allowable differential between zones from 5°F to 99°F. This gives you control over the trade-off between speed of firing and zone uniformity. A feature called "Autolag", which can be turned on or off, automatically turns off the Lag until the critical part of the firing. This speeds up the firing process.
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 will shut down automatically if all thermocouples burn out. Kiln continues to fire if one or two thermocouples burn out.
Digital Indication
See temperature in either degrees F or C. You can 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 for only $500 and $85 per each additional kiln. Monitor up to 10 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. Click here for complete technical and pricing information.
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