PASCO Specialty & Mfg. Pasco CI-6526 User's Manual
Contents
1. Instruction Sheet for the PASCO Model CI 6526 012 05563D Type K Temperature Sensor Introduction The PASCO Model CI 6526 Type K Thermo couple Temperature Sensor is designed to be used with a PASCO CI com puter interface or a PASPORT USB interface with an Analog Adapter PS 2158 A thermocouple works because junctions between dissimi lar metals or alloys in an electrical circuit give rise to an electromotive force or voltage if they are at different temperatures This type of thermo couple is made from a chromel and alumel wire junc tion Range The tip of the 003 05590 Type K Thermocouple Probe can withstand temperatures between 180 C and 1260 C However the insulation material that covers all but the tip of the sensor has a maximum temperature of 482 C You can use the sensor to insulation maximum temperature 482 C tip maximum temperature 1260 C AA OK SONNY SS gt Temperature Range of 003 05590 Type K Thermocouple Probe measure high temperatures such as those in a candle flame if you keep the insulated portion of the sensor out of the flame The thermocouple characteristics are fairly linear from zero degrees Celsius up to the maximum temperature with an error less than 3 C 3 of the reading over the full range Note that the error becomes larger be low zero degrees Celsius The Type K Thermocouple can be used in water and mild chemical solutions but it is we2. ause one of the prongs is wider than the other Connect the 8 pin DIN plug from the sensor box to Analog Channel A B or C on the computer interface box Touch the bare wire end of the sensor to the object to be measured or place the sensor end into the solution to be measured To prevent damage to the sensor or the insulating material do not put the insulated part of the sensor in a flame or put the insulation in contact with a heat source above 482 C gt NOTE IF YOU NEED TO MEASURE A TEMPERATURE HIGHER THAN 400 C USE THE CI 6536 HIGH TEMPERATURE TYPE K THERMOCOUPLE PROBE See the PASCO catalog for more information Using the Sensor in Mild Chemical Solutions The Type K Thermocouple is designed to be used in water and mild chemical solutions when measuring the temperature of a liquid The bare wire end of the thermocouple has been tested for several minutes in the following chemicals without damage acetone household bleach isopropyl alcohol sodium hydroxide lye ethylene glycol butyl ether ethylene glycol antifreeze naphtha sulfuric acid battery acid vinegar glacial acetic acid paradichlorobenzene water e Carefully rinse off any chemicals after each use Using the optional Teflon Sensor Cover A package of ten Teflon Sensor Covers is available from PASCO part number CI 6549 See the PASCO catalog for more information Use the optional Teflon FEP sensor cover when the thermocouple probe must be plac
3. ed in strong chemi cal solutions that may damage the probe Calibrating the Sensor The sensor is designed to produce 0 003 V 0 005 V at O C and 10 milliVolts per degree C Therefore the sensor does not need to be calibrated Instead the out put voltage can be converted directly into a tempera ture For example an output voltage of 1 234 Volts equals a temperature of 123 4 C However you can calibrate the sensor using a two point calibration process To calibrate the sensor you will need an accurate ther mometer ice water 0 C and boiling water 100 C Calibrating the Sensor Using DataStudio Assume for this example that the Type K Thermo couple Temperature Sensor is connected to Analog Channel A of the interface and that you do not have any other sensors connected to the interface Start the DataStudio program Select Setup from the DataStudio toolbar The interface and sensor should appear in the setup window Select Calibrate Sensors from the Experiment Setup toolbar Be sure that 2 point Adjust Slope and Offset is selected under Calibration Type Soy al all dll BL P I mk a id Gam a Bid EIEE EF I eure a Hoes Dunn Calibration Point 1 Place the bare wire end of the thermocouple in the ice water Also put the thermom eter in the ice water The monitor screen will show the voltage value produced by the sensor When the ther mometer reading i
4. ll suited for dry measurements The sensor consists of the Type K probe Model PS 2155 and the sensor electronics box The sensor box has a socket made from chromel and alumel that is mounted very close to the AD595 integrated circuit IC The IC provides the cold junction compensation as long as the IC temperature is equal to the junction temperature made by the socket and copper connec tions The overall output voltage to temperature ratio is 10 milliVolts per degree Celsius The output voltage range is 2 000 at 200 C to 10 000 Volts at 1 000 C Additional Equipment Needed e Computer Interface such as a PASCO CI inter face or a PASPORT USB interface with an Ana log Adapter PS 2158 Optional Equipment e The sensor box accepts any Type K thermo couple such as the CI 6536 High Temperature Type K Thermocouple Probe The High Tem perature Type K Thermocouple Probe is housed ina 30 5 cm 12 inconel metal cover maxi mum temperature 1148 C Therefore it can be used in an open flame or for other high tem perature measurements PASC O 10101 Foothills Blvd Roseville CA 95747 7100 Phone 916 786 3800 FAX 916 786 8905 www pasco com Type K Temperature Sensor 012 05563D Operation Connecting and Using the Sensor Attach the probe s two prong connector to the sensor box at the port marked TYPE K THERMOCOUPLE PROBE INPUT The two prong connector can go into the port only one way bec
5. p dialog box The dialog box will show the Current Value of the voltage produced by the Type K sensor When the voltage value is almost zero click on the bottom Take Reading button Enter the thermometer read ing in the box labeled Low Value Calibration Point 2 Place the sensor and thermom eter in the boiling water The Current Value will show the new voltage produced by the sensor When the voltage value reaches a peak click on the top Take Reading button Enter the thermometer read ing in the box labeled High Value YEL 2 CHROMEL i CI 6526 RED ALUMEL TEMPERATURE SENSOR 8 PIN DIN PLUG TYPEK THERMOCOUPLE PROBE PINS FACING YOU um Schematic Diagram PASC Che You can save your calibration as a Science Workshop document by selecting Save As from the File menu Limited Warranty PASCO scientific warrants this product to be free from defects in materials and workmanship for a period of one year from the date of shipment to the customer PASCO will repair or replace at its option any part of the product which is deemed to be defective in mate rial or workmanship This warranty does not cover damage to the product caused by abuse or improper use Determination of whether a product failure is the result of a manufacturing defect or improper use by the customer shall be made solely by PASCO scien tific Responsibility for the ret
6. s almost zero enter the reading in the Standard Value box for Calibration Point 1 then click the Read From Sensor button for Calibration Point 1 Calibration Point 2 Place the sensor and thermom eter in boiling water The monitor screen will show the new voltage produced by the sensor When the ther PASC Cie 012 05563D Type K Temperature Sensor mometer reading reaches a peak enter the reading in the Standard Value box for Calibration Point 2 then click the Read From Sensor button for Calibration Point 2 Cilck OK at the bottom of the calibratiion screen and close the Experiment Setup window You can save your calibration as a DataStudio docu ment by selecting Save As from the File menu Calibrating the Sensor Using Science Workshop Start the Science Workshop program Click and drag the analog sensor plug icon to Analog Channel A Se lect Temperature Sensor Type K from the list of analog sensors re Temperature Sensor Type K Analog Sensor Setup Measurement Temp Units C Volts High Value 1000 000 10 000 Take Reading Low Value q 0 000 Take Reading Current Value 0 031 0 000 Input Sensitivity Low 1x 5d Calibration Point 1 Place the sensor and thermom eter in the ice water In the Experiment Setup window double click on the Type K sensor icon to open the Analog Sensor Setu
7. urn of equipment for warranty repair belongs to the customer Equipment must be properly packed to prevent damage and shipped postage or freight prepaid Damage caused by improper packing of the equipment for return ship ment will not be covered by the warranty Shipping costs for returning the equipment after repair will be paid by PASCO scientific Equipment Return Should this product have to be returned to PASCO scientific for whatever reason notify PASCO scien tific by letter or phone BEFORE returning the product Upon notification the return authorization and ship ping instructions will be promptly issued gt NOTE NO EQUIPMENT WILL BE ACCEPTED FOR RETURN WITHOUT AN AUTHORIZATION When returning equipment for repair the units must be packed properly Carriers will not accept responsi bility for damage caused by improper packing To be certain the unit will not be damaged in shipment ob serve the following rules The carton must be strong enough for the item shipped Make certain there is at least two inches of packing material between any point on the apparatus and the inside walls of the carton Make certain that the packing material can not shift in the box or become compressed thus letting the instrument come in contact with the edge of the box Type K Temperature Sensor 012 05563D 4 PASC Cie
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