Fluke 52 Thermometer
No picture available!
Maybe you can upload a photo for the
Fluke 52 ?
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
(a/d converter) that develops a numerical
representation of an analog voltage. The a/d Converter
works in the range of -10 mV to +55 mV. For the Fluke
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
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)
3.60 Mbytes (3779412 Bytes)
01 June 1995
Scanned document, all readable.
12 January 2018
This manual presents service information for the Fluke
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.