Related Manuals for Cole Parmer 750 Series
Summary of Contents for Cole Parmer 750 Series
- Page 1 Programmable Muffle Furnace Instruction Manual 650-750 Series 625 East Bunker Court Vernon Hills, IL 60061-9872 1-847-549-7600 1-800-323-4340 www.coleparmer.com...
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Page 2: Table Of Contents
Table of Contents Programmable Muffle Furnaces Introduction........................1 Installation.......................... 2 Selecting a Location ........................2 Unpacking ............................2 Preparing the Furnace ........................3 Figure 1-Furnace Layout....................4 Controls..........................5 Displays............................5 Keypads............................5 Circulating Fan (Model 750 only)....................6 Operation..........................7 Control Mode .......................... -
Page 3: Introduction
Programmable Muffle Furnaces Page 1 Introduction Cole-Parmer 650/750 Series Programmable Muffle Furnaces are available in three sizes: small (Model 14), medium (Model 58) and large (Model 126). All models provide PID microprocessor temperature control at operating temperatures from 50 to 1125 °C (90 to 2057 °F). Furnace chambers are molded from alumina silicate ceramic fibers. -
Page 4: Installation
Programmable Muffle Furnaces Page 2 Installation Choose a location for the furnace, which will provide an area of Selecting a approximately four square feet (2 ft x 2 ft). The bench or table selected Location must be capable of supporting at least 60lbs for the Model 14, 90lbs for the Model 58 or 110lbs for the Model 126. -
Page 5: Preparing The Furnace
Programmable Muffle Furnaces Page 3 Preparing the To prepare the muffle furnace for operation, perform the following procedures: Furnace 1. Make certain all packing material is removed from furnace chamber. 2. Place hearth plate on the bottom of the chamber. Orient hearth plate such that smooth surface faces upward. - Page 6 Programmable Muffle Furnaces Page 4 Figure 1-Furnace Layout Exhaust Port Thermocouple Hearth Plate Air In Circulating Fan Switch (Model 750) 7 Program Run Key Heater LED Set Temp Display Menu Key Alarm LED Increase Key Actual Temp Display Decrease Key Power Switch Program Run LED Door Switch...
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Page 7: Controls
Programmable Muffle Furnaces Page 5 The following sections briefly describe the locations and functions Controls of various display fields and keypad controls. More detailed descriptions are provided, when required, in the operating sections of the manual. Displays The 650/750 Series controller features two bright, one-half inch LED numeric displays used in setting up the furnace program or reading out the furnace temperature. -
Page 8: Circulating Fan (Model 750 Only)
Programmable Muffle Furnaces Page 6 Circulating Fan Just above and to the left of the Actual Display is the power switch for the Circulating Fan. When turned (Model 750 only) on, outside air is circulated through the bottom of the furnace chamber under the hearth, were it is heated, and into the furnace chamber. -
Page 9: Operation
Programmable Muffle Furnaces Page 7 Operation When operating the muffle furnace, always observe the following safety precautions: Safety • Wear insulated gloves Considerations • Use tongs. • Never stand in front of an open furnace. • Use the supplied hearth plate on the chamber bottom. •... -
Page 10: Ramp And Soak Mode
Programmable Muffle Furnaces Page 8 Ramp and Soak In Ramp and Soak mode of operation, the muffle furnace executes a sequence of program commands. During a ramp period, the muffle Mode furnace temperature is controlled to increase (or decrease) at a linear rate set by the operator. -
Page 11: Creating A Ramp And Soak Program
Programmable Muffle Furnaces Page 9 Creating a Ramp Creating a program consists of constructing a sequence of the four basic and Soak Program operations, Set Point (ramp), Soak, Jump Loop and End,) to produce a desired temperature cycle. For each operation selected, several options also must be specified. - Page 12 Programmable Muffle Furnaces Page 10 8. If the desired program step is a ramp to a Set Point, press the MENU key to select it when the Actual Display reads "SP”. Otherwise, skip to step .11. 9. If a ramp to a Set Point is selected, the Set Display first indicates "SP"...
- Page 13 Programmable Muffle Furnaces Page 11 16. If a Jump Loop is selected, the Set Display first indicates "JS" to signify that the operator must select the step number destination for the jump. Use the UP or DOWN Arrow key to adjust the Actual Display to indicate the desired step number.
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Page 14: Running, Stopping Or Resuming A Program
Programmable Muffle Furnaces Page 12 Running, Stopping Prior to running the program in memory, first make certain that the current set temperature is the temperature from which the program is to or Resuming a start. For example, a program intended to ramp the furnace temperature Program from ambient to 600 °C, if started with the current set temperature at 1000 °C, will actually ramp the temperature down from 1000 °C to 600... -
Page 15: Viewing Program Status
Programmable Muffle Furnaces Page 13 Viewing Program While a ramp and soak program is running, the status of the current program step may be viewed. With the Run LED lit to indicate Status the program is running, successively press the MENU key. Each control parameter associated with the current program step then is displayed sequentially. -
Page 16: An Example Program
Programmable Muffle Furnaces Page 14 The ASTM method for Ash Analysis of Coal and Coke (D 3174-89) An Example specifies the following ramp and soak operations: Program Step 1: Ramp from ambient to 500 °C at 8.0 °C/min (i.e., in 1 hour) Step 2: Ramp from 500 °C to 750 °C at 4.2 °C/min (i.e., in 1 hour) Step 3: Soak at 750 °C for two hours Step 4: Turn off power to the heaters and allow to cool... - Page 17 Programmable Muffle Furnaces Page 15 The controller will next prompt for the ramping “rate”. Use the UP or DOWN arrow keys to enter the desired ramping rate in degrees/min (4.2°C/min). Press the MENU key to select the ramping rate. The controller will then display “no rEtn”. Press the MENU key to remain in the program editing mode.
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Page 18: High Temp Alarm
Programmable Muffle Furnaces Page 16 High Temp All Cole-Parmer Furnaces come equipped with high temperature alarms. When an alarm condition occurs, power to the heaters is removed while Alarm the Set display flashes between the current set temperature and “HI”. The high temperature alarm will activate when the actual temperature is greater than the set temperature by more than 25°C (45°F). -
Page 19: Units
Programmable Muffle Furnaces Page 17 The controller can be set up to display units in °C or °F. To Units change or verify the units being displayed simply press the MENU key until the displays show “C C_F”. The current units are displayed in the Actual display. -
Page 20: Trouble Shooting Table
Programmable Muffle Furnaces Page 18 Press the UP arrow key. The displays will now indicate “Yes Log”. Press the MENU key a second time. The following communication options can be selected: • BAud Use the UP or DOWN arrow key to select the baud rate. -
Page 21: Service
Programmable Muffle Furnaces Page 19 All furnaces covered by this manual are built to provide years of Service reliable service. Should the furnace malfunction, the following procedures provide a guide to replacing some of the major components. CAUTION: Only qualified personnel should conduct service to the furnace. -
Page 22: Replacing The Control Thermocouple
Programmable Muffle Furnaces Page 20 To replace a defective thermocouple, perform the following steps: Replacing the 1. Remove all contents from inside the furnace including shelve or hearth plate. Control Thermocouple 2. Perform steps 1 and 2 in Replacing a Heater (preceding page) noting all cautions. -
Page 23: Replacing The Magnetic (Safety) Relay
Programmable Muffle Furnaces Page 21 4. Remove four rubber bumpers on the furnace base. Also remove the four phillips-head screws holding the screen to the base. Set the screen aside. 5. If removing the relay from a small furnace (Models 65014/14A or 750-14/14A) remove two additional screws that fasten the relay heat sink to the base. -
Page 24: Replacement Parts
Programmable Muffle Furnaces Page 22 Replacements for muffle furnace parts serviceable by the user may be ordered, by part number, from Cole-Parmer. Replacement Parts Item Part Number Line Cord and Plug Models 650-14, 750-14 CP102802 Models 650-14A/58, 75014A/58 CP95774 Models 650-126, 750-126 CP83910 Temperature Controller Models 650-14/14A/58/126... -
Page 25: Accessories And Supplies
Programmable Muffle Furnaces Page 23 Item Part Number Base Heaters Model 650-14, 750-14 CP83637 Model 650-58/126, 750-58/126 CP 83638 Ceramic Wool (1 inch wide strip) CP 40885 Accessories and Supplies Ledge (Model 126 Only) CP 83985 A variety of accessories and supplies suitable for use with these Muffle Furnaces are available from Cole-Parmer. -
Page 26: Performance Characteristics
Programmable Muffle Furnaces Page 24 Performance Operating Range 50°C to 1125°C Characteristics (90°F to 2025°F) Average Temperature Uniformity +/- 5°C (+/-9°F) Average Temperature Stability +/- 1°C (+/- 2°F) Set Point Repeatability +/- 1°C (+/-2°F) Set Point Accuracy (Offset = 0.0) +/- 3°C (+/- 5.5°F) Rise Time Models 33856-12, 33856-42... -
Page 27: Specifications
Programmable Muffle Furnaces Page 25 Specifications Electrical Requirements 33856-12, 33856-42 ....120VAC, 50/60 Hz 33856-15, 33856-45 ....208 VAC/240VAC, 50/60 Hz 33856-25, 33856-55 ....208/240VAC, 50/60 Hz 33856-35, 33856-65 ....208/240 VAC, 50/60 Hz Power Requirements Model 14 ........... 1700 Watts Model 58 ........... -
Page 28: Wiring Diagram
Programmable Muffle Furnaces Page 26 Wiring Diagram... - Page 29 Part No. 105648 625 East Bunker Court. Programmable Muffle Furnaces, Models 650-750 Vernon Hills, IL 60061-9872 Published 8-2002 1-847-549-7600 1-800-323-4340 www.coleparmer.com...
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