Skutt KilnMaster Kilns Manufactured between 2000 and 200 Manuel d'utilisateur télécharger pdf (Page 17)

General Firing

Information

When firing a new kiln or one that has

undergone repairs or disturbance, place

and watch a Self-Supporting Cone at three

levels within the kiln chamber.

If you are ever in doubt about a firing,

simply press STOP or unplug it. Never

chance ruining an entire load of ware if

something has toppled off its stilts, if you

hear odd noises, or if the kiln has been

jarred. You won’t harm your ware by

shutting the kiln off before maturity.

Simply set fresh Self-Supporting Cones on

the shelves and begin again. (If you’re fir-

ing with a KM-1 wall-mounted controller,

replace the Junior Cone in the Kiln-Sitter

each firing.)

Because you will keep the top peephole

unplugged during the entire firing, never

unplug any of the lower peepholes for

more than a few seconds. This causes a

strong convection “jet-draft” which can

easily fracture ware and chill the cones in

the kiln, particularly visible cones placed

behind that particular peephole.

To determine the adjusted end firing

temperature in Cone Fire Mode, press

Enter to get a blinking temperature, then

press Review. (In Ramp/Hold Mode, this

procedure will flash back the program just

fired.)

PRE-FIRING CHECKLIST

Load kiln.

❏ Set Self-Supporting Cones while load-

ing. See loading instructions for more

detailed information.

Kiln ventilation.

❏ The lid needs to be propped 2 1/2”

until the internal temperature of the

kiln reaches approximately 1000˚F, at

which time it is lowered.

❏ If you are using a positive kiln ventila-

tion system such as the Skutt

EnviroVent, the lid does not need to be

propped and peep hole plugs remain in

place throughout the firing. Refer to the

EnviroVent instruction manual for

complete details.

❏ Suggestion: You may wish to place a

final kiln shelf on posts above your load

to deflect any cool air coming in from

the top of the kiln

❏ Before firing, plug peepholes except the

top one, which is always left open. This

will allow fumes to escape. (Not neces-

sary when using the EnviroVent.)

Firing speed.

❏ Keep in mind the heating rate for each

of the speeds: slow, medium and fast.

Consider that the best firing time is

from 6-8 hours for a Cone 04-06 bisque

or glaze firing.

❏ Using this information, program the

kiln for the firing cycle that best suits

the ware you are firing. See The

KilnMaster Controller section for detailed

information regarding programming.

Wall mounted controllers.

❏ Kilns with a limit timer need to be set

for 20 hours when operating with the

KilnMaster controller.

❏ Use a Junior cone one to two cones hot-

ter in the Kiln-Sitter as a backup for the

controller. See the section on the Wall

Mounted KilnMaster Controller for

more specific information.

Caution:

While the KilnMaster has an excellent

operating record, we recommend that

you do not leave the kiln unattended

during firing.

COLD WEATHER OPERATION

While it is possible to operate a

KilnMaster-controlled kiln in cold weath-

er, the relays which must open and close

freely can tend to stick at low tempera-

tures.

We recommend that your work space be

heated to at least 40˚ F for proper

KilnMaster operation.

If the temperature in your kiln area is

near or below freezing (32˚ F), use a space

heater or hair dryer to gently prewarm the

controller box and thermocouple to 40˚

before starting the firing program.

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