7 Options
7.1 Temperature Measurement
Raytech WR series Instruments are very accurate and precise test systems. To take full advantage
of this high accuracy, the recording of the temperature of the device under test is highly
recommended. This is due to the characteristics of the increase in resistance of a metallic object
as its temperature increases. Incorporated into the system are temperature compensation tables
for Copper and Aluminium. These tables are used to automatically calculate the conversion factor
to a known reference temperature.
Temperature Correction Settings: see chapter 6.3.11 on page 64.
The system allows up to three (3) temperature probes to be used for the purpose of recording
temperatures. Optional Part Number: TP01, can be purchased for this purpose.
TP01 temperature probe is mounted to a flexible cable that plugs into the rear panel of the WR-
instruments. This option enables the user to record the ambient temperature and/or the actual
temperature of the device under test. A set of three (3) temperature probes (TP03) can be ordered
to allow complete temperature measurements at three different reading points.
The Instrument will automatically detect when a TP 01 probe is connected. The temperature will be
displayed on the instrument screen during a test and will appear on the printed report. The
temperature, as well as the test results, can be saved into memory.
As soon as a temperature probe is connected,
the value is displayed on the main screen and
will automatically be stored to the correspondent
resistance value.
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14
Page 79 of 139
