-e ,, \ LT246X1 OPERATING INSTRUCTIONS
Contents
1. Temperature Equivalents are given in degrees Centigrade C and the corresponding degrees Fahrenheit CF The rates of heating shown at the head of each column of temperature equivalents were maintained during the last several hundred degrees of temperature rise The temperature equivalents were determined at the National Bureau of Standards by H P Beerman See Journal of the American Ceramic Society Vol 39 1956 with the exception of those marked The temperature equivalents are not necessarily those at which cones will deform under firing conditions different from those under which the calibrating determinations were made For more detailed technical data please write the Orton Foundation EDWARD ORTON JR CERAMIC FOUNDATION 1445 SUMMIT ST COLUMBUS OHIO q dapio oJ ans aq Surlaplo Wud saquinu fiay fiq you dai daquinu jied d juawiaoe Spe Exploded View of CP 21020 25 Nova Control Order by Part Number not by Key Number above 4 0 s 11 12 13 14 15 16 17 18 19 20 21 22 23 24 PARTS LIST PART NUMBER DESCRIPTION CV210X1A Cover Assembly FSX47 Fastner Screw FSX 149 Fastner Screw 2 required TRX41 Terminal TRX42 Terminal SRX16 Strain Relief CR210X1 Cord Set For CP 21025 120V amp CP 21024 100V CR210X2 Cord Set For CP 21020 240V FWX11 Fastner Washer CS210X1A Case Assembly TRX80 Terminal FNX2 Fastner Nut CEX78 Connector For CP 210252. 120V amp CP 21024 100V CEX79 Connector For CP 21020 240V CS210X2A Case Assembly FTX1A Foot 4 required DL246X1 Dial For CP 21025 120V DL246X3 Dial For CP 21024 100V DL246X2 Dial For CP 21020 240V TA205X1 Tape 2 required TRX78 Terminal 2 required CNX60 i Control For CP 21024 100V CNX72 Control For CP 21025 120V CNX73 Control For CP 21020 240V DLX31 Dial PLX38 Pilot Light For CP 21025 120V amp CP 21024 100V PLX59 Pilot Light For CP 21020 240V FSX30 Fastner Screw 2 required KBX23 Knob FSX5 Fastner Screw MEX141 Meter TC246X1A Thermocouple complete TC246X2A Thermocouple Tip Section WT246X1A Thermocouple Extension Wire w Connector These are not shown on exploded view F 0 B SHIPPING POINT SUBJECT TO CHANGE WITHOUT NOTICE MINIMUM ORDER 10 00 CHART BELOW FOR NOVA SR KILN WITH LOAD IN KILN Control Knob Approximate Settings Degrees Fahrenheit Cone No LO 10509F Cone 024 20 i 1275 F Cone 019 30 15209F _ Cone 014 40 1700 F Cone 010 50 1900 F Cone 06 56 1950 F Cone 05 60 i 20509F Cone 03 HI Full On 22509F Cone 6 No cycling CHART BELOW FOR CHINA PAINTER KILN WITH LOAD IN KILN Junior 5409F LO Le 20 9259F tt 5 30 11259F Cone 021 40 1325 F Cone 019 50 1665 F Cone 010 60 1875 F Cone 06 HI 2000 F Cone 04 NOTE BECAUSE OF THE SLIGHT VARIATIONS IN CONTROLS LOADS PLACED IN THE KILN AND LINE VOLTAGES THROUGHOUT THE COUNTRY SLIGHT VARIATIONS FROM THE
3. placed in the kiln and line voltages throughout the coun try slight variations from the chart could occur OPERATION When the control knob is set at the LOW position the heating elements of the kiln draw current only a small portion of the time and the lowest possible temperature will be maintained When set at the HI position the heating elements draw current all of the time and the kiln will heat rapidly to its maximum temperature NOTE Caution should be exercised when the setting of HI is used because at this setting the control is full on and does not regulate the input The operator should observe the temperature indicator so that overfiring does not occur Readjust the control to the lower setting desired at about 150 F before desired temperature Intermediate settings will result in corresponding inter mediate temperatures Normally for fast heatup the knob is set at a high or the HI position and as the temperature approaches the desired point the knob is turned back so that the temperature will level off and hold where it is wanted After a little experience the operator will be able to spot the knob positions for temperatures he frequently uses and he may even want to make a note of them or mark them on the control knob itself NOTE The white neon pilot light glows continually when the control unit is plugged into a wall outlet and the control knob is not in the OFF position T
4. the China Kiln KL 22325 you may insert the thermocouple through the peephole in front or through the hole provided in the rear leg Drilling a hole through the chamber insulation will be necessary for this use Holes are provided however through both inside and outside cases already The large scale on the pyrometer allows easy readings in two scale ranges 32 2500 F and 0 1371 C A handy cross reference chart is included which gives all normally used pyrometric cone numbers and their corresponding melting temperatures in F and C TABLE OF ORTON PYROMETRIC CONE TEMPERATURE EQUIVALENTS QUICK REFERENCE CHART SENIOR JUNIOR CONE CONES CONES STONEWARE 8 NUMBER 2709F 5409F 022 11129F 11219F PORCELAIN 021 1137 1189 0200 1175 1231 i er 019 1261 1333 018 1323 1386 017 1377 1443 016 1458 1517 015 1479 1549 014 1540 1526 013 1566 1580 012 1623 DI II E an 011 1641 1661 ceramic 010 1641 1686 BISQUE 02 09 1693 1751 08 1751 1801 un 07 1803 1846 M CLASE 06 1830 1873 P 05 1915 1944 04 1940 2008 03 2014 2068 02 2048 2098 01 2079 de e a ae ee z 2109 7154 7 nf ci Pi J 5134 3185 susa 4 2167 2208 GOLD 2185 2230 LUSTERS 6 2232 2291 019 GLASS 7 2264 2307 020 8 2305 2372 vzm TEMP RISE PER HOUR NOTES l The temperature equivalents in this table apply only to Orton Standard Pyrometric Cones when heated tO at the rates indicated in an air atmosphere
5. CHART COULD OCCUR a NO a 1721 NEWPORT CIRCLE SANTA ANA CA 92705 e 714 556 6928
6. LT246X1 OPERATING INSTRUCTIONS and PARTS LIST for NOVA CONTROL UNIT WITH PYROMETER Model CP 21024 Series 246 100 Volt Model CP 21025 Series 246 120 Volt Model CP 21020 Series 246 240 Volt Your Stepless Input Controller is for opera tion on alternating current only and one voltage only Check the specifications on the dial plate for the proper power supply CAUTION Handle this instrument with care drop ping it or a hard blow may injure the indicator or the control mechanism Connect your controller only to loads of the proper voltage and not exceeding the am perage rating specified WARNING THE CONTROLLER DOES NOT IN CLUDE AN AUTOMATIC SHUT OFF BUT INSTEAD HOLDS CHAMBER TEMPERATURE AT WHAT EVER LEVEL THE OPERATOR SETS THE CON TROL This control operates by rhythmically making and break ing the circuit to the kiln so that for any given setting of the knob the average power input remains constant The control will compensate for voltage fluctuations of or 10 of the rated voltage The dial markings are reference markings only and DO NOT correspond to any specific temperature Depend ing on the setting of the control plus the load within the kiln will determine the temperature the kiln wil reach at any one setting For ease in operating your new control a chart is provided which gives reference setting with corresponding kiln temperatures NOTE Because of slight variations in controls loads
7. he red neon pilot light turns on and off as power is applied to the kiln NOTE To operate plug each NOVA kiln section or China Painter Kiln into the receptable at the rear of the control unit Plug the control unit power cord into any 15 amp 120V outlet Turn the control knob to the desired setting The white power light should be on the cycle light should begin to turn on and off except on position HI indicating power is being applied to the kiln This control is furnished with a 3 wire cord and 3 prong plug for use where grounded installations are required by local electrical codes PYROMETER The pyrometer used in the NOVA control is calibrated for use with a 4 long 14 GA Chromel Alumel thermo couple included with unit OPERATION OF PYROMETER Remove the bare shunt wire from the terminals at the rear of the controller Connect thermocouple leads to the thermocouple connectors at the rear of the unit The red thermocouple lead to red terminal The yellow thermo couple lead to the black terminal Place the thermocouple probe porcelain tip section through the thermocouple holes provided in the wall of the kiln The thermo couple probe may also be placed between the two sections of the NOVA kiln Remove the top section place the probe so that at least 1 is inserted into the chamber Replace the soft gasket and top section The soft gasket will pro vide a sufficient heat barrier When using the controller with
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