background image

Page 

     ST312 

User 

Handbook 

00

.

15

 

°C 
°C/hr 
hr.min 

The next push of the 

¨

 key displays the 

soak time in the range 00.00 to 99.59 (99 
hours 59 mins).  This can be altered with 
the 

©

 & 

ª

 keys.  The SOAK TIME lamp 

on the mimic display will flash. 

Note: to exit programming without cycling through all of the above steps wait 10 
seconds without pressing any keys—the ST312 will revert to the idle display.  
Alternatively press the START/STOP key to exit programming and to begin firing 
immediately. 

Pr

ogramming 

A further push of the 

¨

 key completes data 

entry and no lamps on the mimic display will 
flash. 

 End

 

°C 
°C/hr 
hr.min 

Data entry is also completed if 

End

 is selected 

with the 

ª

 key for either ramp rate 1 or ramp 

rate 2. 

Note: the 

§

 key can be used to reverse through the programming steps to correct 

errors or to exit programming mode. 

Note: available ramp rate displays are: 

End

… 

999

 

&

 

FULL

.  

If  

End

 

is 

shown but another segment is required then push the 

©

 

key to obtain the 

required ramp rate (in the range 1°C/hr to 999°C/hr).  If full power is required 
then push the 

©

 

key until  

FULL

 

is diplayed. 

ST312 User Handbook 

 

 

 

 

       Page   13 

Cooling 

Upon completion of firing the ST312 lights all lamps on the mimic dis-
play and the kiln is allowed to cool naturally. 

 120

 

°C 

°C/hr 

hr.min 

Hot

 

°C 

°C/hr 

hr.min 

  39

 

°C 

°C/hr 

hr.min 

End

 

°C 

°C/hr 

hr.min 

While the kiln temperature is above 40°C the display alternates every 5 
seconds between the kiln temperature and 

Hot

 

When the kiln has cooled to less than 40°C the display alternates every 5 
seconds between the kiln temperature and 

End

 

To return the ST312 back to idle condition ready for the next firing press 
the START/STOP key (or turn off the power to the instrument). 

Cooling 

Summary of Contents for ST312

Page 1: ...ser Handbook Page 1 ST312 User Handbook STAFFOR D INSTRUMENTS Stafford Instruments Ltd Tel 44 0 1785 255588 Fax 44 0 1785 255589 www stafford inst co uk email support stafford inst co uk Issue 1 002 D...

Page 2: ...Low Temperature Glaze 90 C hr 600 C 00 30 Earthenware Mid Temperature Glaze 90 C hr 600 C 00 30 Earthenware High Temperature Glaze 90 C hr 600 C 00 30 Stoneware Glaze 90 C hr 600 C 00 30 On Glaze Enam...

Page 3: ...not locked Press and hold in both the keys for 5 seconds to lock the ST312 Power Failure Recovery If power fails during firing then the ST312 recovers as follows For power failure during start delay t...

Page 4: ...312 to terminate the firing with all the keys locked An alarm buzzer sounds once per second SWITCH KILN OFF To reset the ST312 turn off the power to the instrument and have the fault investigated by y...

Page 5: ...99 hours limit Err6 C C hr hr min Possible causes are contactor failure or thermocouple connection intermittent or high resistance ST312 User Handbook Page 5 Turning On F1 04 tC r tC S tC n tC K 8 8 8...

Page 6: ...am Pause Facility While firing press and hold down the key for about 4 seconds The ST312 will pause the executing program To un pause the program press and hold down the the key again for about 4 seco...

Page 7: ...rature If currently soaking then the ST312 will end the firing Changes made to the operation of the ST312 in this way are temporary and are not stored Adjusting While Firing ST312 User Handbook Page 7...

Page 8: ...through the programming steps to correct errors or to exit programming mode Note available ramp rate displays are End 1 999 FULL If End is shown but another segment is required then push the key to ob...

Page 9: ...ture can be disabled see in stallation handbook Firing Delayed Start The delayed start time period is set to 00 00 when the ST312 is turned on ST312 User Handbook Page 9 Firing To start a firing press...

Page 10: ...Page ST312 User Handbook 10 Program Record Sheet Ramp 1 C hr t1 C Ramp 2 C hr Soak Temp C Soak Time hr min Please photocopy me ST312 User Handbook Page 11 Program Description Please photocopy me...

Reviews: