|Fluke 52 Thermometer|
FUNCTIONAL OVERVIEW The Fluke 51 and 52 K/J Thermometers take nonlinear voltages from thermocouples and convert the voltages to meaningful temperature readings. These thermometers are actually microvoltmeters with additional features to compensate forthe reference junction and non-linearities of thermocouples. The heart of these instruments is an analog-to-digital Converter (a/d converter) that develops a numerical representation of an analog voltage. The a/d Converter (UI) works in the range of -10 mV to +55 mV. For the Fluke 52, three signals must be measured: thermocouple I, thermocouple 2, and the signal that represents the temperature of the reference junctions. To measure the three signals, the a/d Converter is connected to each of these signals one at a time. A microcomputer (U2) coordinates the switching and a/d activity performed by U1. U2 also interprets the numbers sent by the a/d converter, including reference junction compensation, linearization, and degrees Celsius and Fahrenheit conversion. U2 also monitors the instrument control buttons and drives the liquid crystal display (LCD)
These manuals are available for the above equipment:
|Fluke -- 52 -- Service Manual|
|Manual Type||Service Manual|
|Size||3.60 Mbytes (3779412 Bytes)|
|Date||01 June 1995|
|Quality||Scanned document, all readable.|
|Upload date||12 January 2018|
|Downloads||305 since 12 January 2018|
This manual presents service information for the Fluke 51 and 52 K/J Thermometers. Included are a theory of operation, general maintenance procedures, performance tests, calibration procedures, troubleshooting information, a list of replacement parts, and schematic diagrams.
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