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1575/1590 Thermometer Readout
User's Guide
5.3
24
Front Panel Display
The front panel display is shown in detail in Figure 3 and its features are de-
scribed below.
Figure 3 1575/1590 Super-Thermometer Display
The display is a 320 x 240 pixel graphics LCD device with a bright CCFT
backlight. The contrast can be adjusted using the front panel buttons marked
C. The tilt of the display can be adjusted for best viewing by pressing the dis-
play in at the top (1590 only). The 1575/1590 has a screen saver feature which
can be used to extend the lifetime of the display (see Section 7.6.2.5). The dis-
play is used to show measurements, status information, operating parameters,
and soft-key functions. The types of data shown on the screen are described
below.
Measurement Window
The most recent measurement is shown in large digits in the box at the top of
the screen. Out-of-range measurements are displayed as ". . . . . . . . . .". The
unit of measurement is shown to the right of the measurement ("C" for Cel-
sius, "F" for Fahrenheit, "K" for Kelvin, "Ω" for resistance in ohms, "W" for
ITS-90 W(T), and "r" for ratio of input resistance to reference resistance).
Channel Indicator
To the left of the measurement is a number that indicates the channel that was
measured.
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