Rio Grande Digital Temperature Controller User Manual Download Page 3

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3

General Guidelines

Time and

Temperature

Display

Center Dot: Time

A center dot appears during

time display. It separates

hours from minutes. (Example: 1 hour, 30 minutes displays

as 01.30.) During temperature display, the dot disappears.

Single Right-Hand

Dot: °C

When temperature is

displayed in °C, a dot

appears in the lower

right. In °F display, it

disappears. You can

choose between Fahr-

enheit and Celsius dis-

play. See page 9.

Operation Begins from the

IdLE Display

must appear before you can fire the kiln.

I

If

,

, or other message appears instead of

when the kiln is first turned on, press the

key (the key with the circular arrow).

will appear.

I

If you press

during a firing,

will appear. To

get back to

, press

again.

I

If the display shows an error message such as

in-

stead of

, see page 8.

I

(firing completed) appears at the end of a firing.

To make

appear, press

.

Thermocouple Inspection

The small rod protruding into the firing chamber is the

temperature sensor, or thermocouple.

Caution:

Bumping the thermocouple can push it

out of the firing chamber. This could cause an

overfire!

I

A 1/8” diameter thermocouple should extend into the fir-

ing chamber ½” -

5

8

”.

I

A ¼” diameter thermocouple should extend into the fir-

ing chamber 1” or more.

I

Keep shelves, posts and ware 1” - 1 ½” away from the

thermocouple.

A Rapid Way to Scroll Numbers

During programming, hold an arrow key down several

seconds, and numberswillbeginto scroll rapidly. Ordinarily,

you would press

to raise a number and

to lower it. But sometimes it is faster to press the

opposite key. This is because the numbers scroll below 0000

to the highest number, and vice versa. Examples:

I

To program a 99.59 hour Hold when the display shows

00.00, press the

once.

I

To program a FULL rate when the display shows 0000,

press the

once.

I

To program a temperature of 200°F when the display

shows 1800°F, press the

. That is faster than

pressing the

.

Program Review & Repeat Firing

Program Review lets you check that the information pro-

grammed into the controller is correct. Program Review

shows the values for the program in active memory. Use Pro-

gram Review from

to repeat the last program you

fired.

I

Press the

key. The rate, temperature, hold, etc.

will display one after the other. Firing will continue.

I

Press the

key. After rate, temper-

ature, hold, etc.,

will appear. Press

.

will appear, and the kiln will begin firing the program just

reviewed.

Delay

Delay is a count-down timer. The kiln begins firing when

the timer runs out of time. Use Delay to fit a firing into your

schedule.

Caution:

For safety, do not leave the kiln alone dur-

ing a delay or a firing. We cannot guarantee your kiln

against overfiring even though the controller is au-

tomatic.

After you have selected a program and the controller

is ready to begin firing,

will appear.

Press the

key once.

will ap-

pear, alternating with

.

Use the arrow keys to enter delay time. (The decimal

separates hours and minutes. Example: 1 hour 10

minutes = 01.10) Then press

twice.

will appear, alternating with time left until the firing

begins.

Note:

Press

during delay to end the delay

and begin the firing. The maximum delay is 99

hours and 59 minutes.

Power Failures

After a power failure, the controller will continue firing

provided that:

I

The kiln temperature is above 212°F/100°C when the

power comes back on.

I

The temperature dropped no more than 180°F/100°C

while the power was off.

°F

°C

Summary of Contents for Digital Temperature Controller

Page 1: ...row keys to change the target temperature for the cur rent segment Then press Page 6 During a firing press repeatedly until appears Press Use the arrow keys to change the alarm temperature Press To si...

Page 2: ...code before appears then the controller includes only Skip Segment from Advanced Features on pages 6 7 If your controller shows a software code before appears then the controller has all the features...

Page 3: ...highest number and vice versa Examples I To program a 99 59 hour Hold when the display shows 00 00 press the once I To program a FULL rate when the display shows 0000 press the once I To program a te...

Page 4: ...g a cooling segment and the kiln cooled past the target temperature while the power was off The power failed during firing and kiln tempera turewasbelow212 F 100 Cwhenthepowercamebackon The power fail...

Page 5: ...ate is figured in degrees per hour If you selected a rate of 100 per hour it would take 10 hours for the kiln to reach 1000 Rate is similar to miles per hour In summary the controller does three basic...

Page 6: ...ress Advanced Features Note All the features in this section are available in a User Defined program The alarm is the only fea ture in this section that is available in a PMC pro gram This is because...

Page 7: ...F 0 Cwillturnoffthealarm Lost Wax Burnout Caution Only kilns with vent holes are designed for lost wax burnout However you can use a kiln without the vent hole provided that you open the door during...

Page 8: ...ent cover s or leave the door ajar Fire the kiln empty to 1500 F 815 C at a rate of 300 F 166 C with a one hour hold 01 00 Error Messages bAdP Bad Programming The kiln will not fire the because the Us...

Page 9: ...ller You can calibrate the controller to fire up to 20 F 11 C hotter or cooler than the zero factory setting From press the key After rate temperature hold etc will appear With shown in the display pr...

Page 10: ...art message appears after program ming a firing Press to begin firing Controller Calibration press the and Delay press the are accessed from the message Page 9 Calibrate the controller to fire hotter...

Page 11: ...controller faceplate to the switch box Lift faceplate out of box and let the con troller hang on the outside of the box with the back of the board facing you Then plug the kiln back in Pro gram the co...

Page 12: ...electing a Stored PMC Program Keys to Press Shown in the Display through Not Down Arrow Select Program 1 2 3 4 or 5 The kiln is now firing The User Defined Program Keys to Press Display through Not Do...

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