Stafford Instruments ST215 User Handbook Manual Download Page 2 | Manualshive

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ST215 User Handbook

2

At a Glance

MAIN
DISPLAY

TEMPERATURE
ICON

RAMP RATE ICON

TIME ICON

START/STOP KEY

SEGMENT
DISPLAY

KILN HEATING
INDICATOR

FIRING INDICATOR

CONTROL KEYS

MIMIC DISPLAY

FUSE

POWER ON/OFF SWITCH

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Summary of Contents for ST215

Page 1: ...Page 1 ST215 Temperature Programmer User Handbook Issue 2 01 Date 09 Feb 2017 See separate handbook for Installation Instructions Copyright 2014 2017 Stafford Instruments Ltd www staffordinstruments co uk TAFFOR S D ST215 ...

Page 2: ...215 User Handbook 2 At a Glance MAIN DISPLAY TEMPERATURE ICON RAMP RATE ICON TIME ICON START STOP KEY SEGMENT DISPLAY KILN HEATING INDICATOR FIRING INDICATOR CONTROL KEYS MIMIC DISPLAY FUSE POWER ON OFF SWITCH ...

Page 3: ...o enter the programming mode To change firing data press the keys to change the displayed value Use the key again as necessary to step to the next firing value or segment to be reviewed or changed To mark the end of a program set a ramp rate to End with the key If the keyboard is locked then press the keys together hold down for 5 seconds to un lock To exit the programming mode either wait 20 seco...

Page 4: ...lass Programs 16 10 programs each with up to 16 segments 1 controlled heating cooling ramp soak per segment Soak peiods up to 99 hours 59 mins Ramp rates from 1 to 999 hour FULL Ideal for glass or ceramics use Programs can be altered while firing Program pause and advance facilities Keyboard lockable Delayed start facility up to 99 hours 59 mins Power failure recovery Energy used display Setpoint ...

Page 5: ... or N type r S H n The final display will show the kiln tempera ture All other lamps should be off If pressing any key causes LOC to appear then the keyboard has been locked This is an anti tamper feature Press the keys together hold down for 5 seconds to unlock During firing the right hand decimal point will light to show when heating power is being applied to the kiln This now shows that the key...

Page 6: ... runs the next segment until the end of the program is reached The ST215 is capable of both positive heating ramps and negative cooling ramps as used in glassmaking for annealing The type of ramp is clearly shown on the mimic display during firing The ramp rate is settable in the range 1 hour to 999 hour or FULL full power or End end of program The soak target temperature is settable over the rang...

Page 7: ...d in hours minutes This can be altered in the range 00 00 to 99 59 with the keys The soak period indicator on the mimic panel will flash The next push of the key increments the segment number digit and firing data for the next segment can be entered Program data entry is terminated if End is selected for a ramp rate with the key Pro gram data entry is also automatically terminat ed if the maximum ...

Page 8: ...temperature then the ST215 will apply heating power to the kiln for 12 seconds every 30 seconds The kiln heating indicator will light for 12 seconds every 30 seconds If the kiln has a contactor then a loud click will be heard both when the kiln heating indicator lights up and when it goes out If full heating power is required then the kiln heating indicator will remain lit If full cooling is requi...

Page 9: ...e the kiln temperature is above 40 C the display alternates every 5 sec onds 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 ST215 back to idle condition ready for the next firing press the n key or turn off the power to the instrument ...

Page 10: ...ed Pressing the n key again will cause the ST215 to restart the firing from the beginning The ST215 will look at the current kiln temperature and if this is greater than the required soak temperature then the ST215 will automatically cool from current temperature to the soak temperature This may not be what is desired so the n key should only be used to halt the firing in an emergency The program ...

Page 11: ... changes are being made The ST215 will return to its normal running display 20 seconds after key presses cease or immediately after End is displayed Changes made to programs in this way are stored and are used for subsequent firings Program Advance Facility While firing press and hold down the key for 3 seconds to obtain the 8 advance function The ST215 will sound a short beep and the executing pr...

Page 12: ... wiring checked Replace thermocouple if necessary Thermocouple reversed kiln temperature appar ently less than 40 C This is an installation fault Get wiring checked Cooling error The kiln has been on zero power for 30 minutes but the kiln temperature has not fallen by at least 1 C Possible causes contactor failure contacts welded or thermocouple connection intermittent or high resistance Kiln temp...

Page 13: ...it Possible causes kiln room vent fan failure kiln room too small ventilation grills blocked damper or bung left open controller mounted too close to kiln Program Error This error message is displayed if a potential error is detected within the firing program when the n key is pressed to start a firing The alarm buzzer will sound 3 times and the segment display will show the suspect seg ment numbe...

Page 14: ... is an anti tamper feature used to ensure that the operation of the ST215 or the program data cannot be altered by un authorised people The ST215 can be locked when it is idle not firing or while it is firing It cannot be locked while it is being programmed Power Failure Recovery If power fails during firing then the ST215 recovers as follows For power failure during start delay the ST215 times of...

Page 15: ...00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Seg 3 Ramp Rate C hr End End End End End End End End End End Note It has been found that a kiln controller will give greater heat work as the temperature increases Therefore to achieve a stoneware firing of cone 8 9 we suggest setting the final soak temperature to 1235 C A slight adjustment can then be made after the first firing It should be reme...

Page 16: ... 538 00 15 182 427 00 00 End 3 6mm Bullseye Fuse 222 677 00 30 333 795 00 10 FULL 482 01 00 83 371 00 01 End 4 6mm Bullseye Slump 167 640 00 10 FULL 482 01 00 56 371 00 01 End 5 6mm Spectrum System 96 Fuse 200 500 00 00 FULL 804 00 12 FULL 540 00 40 150 510 00 20 End 6 6mm Spectrum System 96 Slump 155 704 00 20 FULL 540 01 30 FULL 510 00 10 26 371 00 00 End 7 Bottle Firing Cycle 170 510 00 00 250 ...

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