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Extech Instruments 421504, User Manual

The Extech Instruments 421504 comes with a comprehensive Instruction Manual, providing users with detailed guidance on how to maximize the product's capabilities. You can easily download this manual for free from our website, ensuring you have all the necessary information to make the most of your purchase.

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User's Guide

Dual Input RTD Thermometer

Model 421504

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - FAX 781.665.0780 - TestEquipmentDepot.com

99 Washington Street
Melrose, MA 02176

Fax 781-665-0780

TestEquipmentDepot.com

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Summary of Contents for 421504

Page 1: ...put RTD Thermometer Model 421504 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 99 Washington Street Melrose MA 02176 Fax 781 665 0780 TestEquipmentDepot com ...

Page 2: ...5 RTD Probe Pt 3926 100Ω 328 to 1166 o F 200 to 630 o C U S curve Alpha 003926 Temperature units Selectable C or F temperature units Accuracy is specified for operating temperatures in the range of 64 to 82 o F 18 to 28 o C for a period of one year not including the RTD probe error 0 05 rdg 0 2 o C for o C Scale Accuracy 0 05 rdg 0 4 o F for o F Scale Temperature Coefficient Multiply the applicabl...

Page 3: ...robe inputs 2 LCD multifunction display 3 Keypad 4 Protective holster Note that the tilt stand and battery compartment are located on the back of the meter Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com ...

Page 4: ...Model 421504 Version 1 9 December 2004 5 Display Description Keypad Description ...

Page 5: ... type alpha 3850 or 3926 that is connected to the T2 terminal using the Pt385 3926 button the button with the number 0 overlay 3 The LCD display indicates which alpha curve is selected Note Alpha curve 385 is the DIN IEC worldwide current standard while Alpha 3926 is an older standard If unsure check with the Probe manufacturer If still in doubt use the 385 selection The meter remembers the select...

Page 6: ... MAX button was first pressed up to a maximum of 22 hours If 22 hours elapse the average stored at this point is held on the display and is no longer updated the MIN and MAX functions continue without interruption indefinitely If an overload is recorded the AVG function is halted and the AVG display shows 5 In this mode the Primary displayed value is the MIN MAX or AVG reading depending upon which...

Page 7: ...ered as 0080 100 as 0100 etc 3 Press the ENTER button once 4 Program the LO Alarm Limit value temperature at which the meter audibly alerts the user 5 Press the ENTER button once to return to normal operation The alarms will be armed giving an audible alert when a limit is reached 6 When the actual temperature meets or exceeds the user programmed temperature limits a continuous alert tone will be ...

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