Stafford Instruments ST325 User Handbook Manual Download Page 1

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Page

ST325 User Handbook

Further copies of this handbook may be found at www.staffordinstruments.co.uk/docs/st32x/user325.pdf

Program No:

Segment

No.

Ramp

Rate

°C/hr

Soak

Temp

°C

Soak
Time

hr.min

Notes

Please photocopy

me!

Please photocopy

me!

ST325 User Handbook

Page

ST325

User Handbook

ST325 Temperature Programmer

TAFFOR

Stafford Instruments Ltd.
Tel: +44(0)1785 255588
Fax: +44(0)1785 255589

www.staffordinstruments.co.uk
email: [email protected]

Issue: 1.02
Date:

21 Feb 2011

Summary of Contents for ST325

Page 1: ...ime hr min Notes Please photocopy me Please photocopy me ST325 User Handbook Page 1 ST325 User Handbook ST325 Temperature Programmer TAFFOR S D Stafford Instruments Ltd Tel 44 0 1785 255588 Fax 44 0 1785 255589 www staffordinstruments co uk email support stafford inst co uk Issue 1 02 Date 21 Feb 2011 See separate handbook for User Instructions Copyright 2011 Stafford Instruments Ltd ...

Page 2: ...nvestigated and rectified by your installer or kiln service engineer Technical note any error message will cause the alarm relay to open see installation handbook for details Note these error messages are provided to detect kiln faults and so offer some protection to the kiln For increased protection the use of a heat fuse or other independent over temperature trip is recom mended such as the Staf...

Page 3: ... The kiln temperature exceeds the desired temperature by at least 10 C 50 C installer selectable Err5 C C hr hr min Error 6 Maximum firing time exceeded The length of the current firing has exceeded an installer selectable 10 999 hours limit Err6 C C hr hr min Possible causes are contactor failure or thermocouple connection intermittent or high resistance ST325 User Handbook Page 3 Quick Start Gui...

Page 4: ...the firing the fan remains off while the kiln temperature is below the fan start temperature The fan starts when the kiln temperature has risen to the fan start temperature and remains on until the kiln tem perature has risen to the fan stop temperature The fan then turns off and stays off until the end of the program The instrument will now reset and the new fan control temperatures will be store...

Page 5: ...he firing and when the kiln has cooled naturally to the damper open temperature the damper will open Control Relay ST325 User Handbook Page 5 Turning On tC r tC S tC n tC K When turned on the ST325 performs a display test by briefly illuminating all of the display digits and all of the front panel lamps The version number of the embedded software is now displayed If you need technical support you ...

Page 6: ...utput a fan control output or an event output 00 15 C C hr hr min While displaying a soak time the event relay can be switched on or off by hold ing in the fn function key then pressing the event key The event relay will be closed when the event lamp is on Control Relay Event Output Card Reader This controller has a card slot for a micro SD mem ory card the same type of card as used on many mobile...

Page 7: ...amp it was pre viously executing For power failure during soaking the ST325 ramps back up to soak tem perature at the correct ramp rate then applies the remaining soak period Power failure recovery can be disabled if required see installation hand book the ST325 will then lock up with FAIL displayed and kiln off in the event of power failure ST325 User Handbook Page 7 When not firing no lamps lit ...

Page 8: ...d This can be confirmed by stepping through the completed program with the key Q A During programming End is displayed when I want to enter another segment why is this Available ramp rate displays are End 1 999 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 FUL...

Page 9: ...amics Programs 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 remembered that kiln controllers are indicators of temperature and the effects of faster or slower fi...

Page 10: ...eating Cooling Ramps The ST325 is capable of controlled ramps for both heating and cooling The type of ramp required is determined by comparing the required soak temperature to the soak temperature in the previous segment and is shown on the mimic display STOP key operation If the START STOP key is pressed during a firing then the firing will be halted not paused Pressing the START STOP key again ...

Page 11: ...onds If the kiln has a contactor then a loud click will be heard both when the decimal point lights up and when it goes out If full heating power is required then the decimal point will remain lit If full cooling is required then the decimal point will remain off Firing Hint it is good practice to check that the program is correct by pressing the key checking the program number program contents be...

Page 12: ... Kilncare Ltd www kilncare co uk and The Creative Glass Guild www creativeglassguild co uk Sample Glass Programs ST325 User Handbook Page 13 2 mp te hr Seg 2 Soak Temp C Seg 2 Soak Time hr mn Seg 3 Ramp Rate C hr Seg 3 Soak Temp C Seg 3 Soak Time hr mn Seg 4 Ramp Rate C hr Seg 4 Soak Temp C Seg 4 Soak Time hr mn Seg 5 Ramp Rate C hr L 840 00 20 FULL 538 00 45 182 427 00 15 End L 824 00 20 FULL 538...

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