The User Interface - Teledyne 8800P Instruction Manual

5.0 The User Interface

The user interface consists of a custom LCD display, an audio indicator, 5 push buttons
and a sensor actuator.
5.1 Display Conventions
1. To display letters with the 7 segment numeric display, the following pseudo-alpha-
numerics are used:
Numbers:
0 1
Letters:
A B C D E F G H I
Symbols:
? -
2. The instrument will indicate whether a particular mode lets you change a parame-
ter by showing the word "SET" in the upper left corner of the display. Be careful
not to change any parameter inadvertently.
3. °C°F appear simultaneously, to indicate the sensors' attenuation in decibels.
4. Values higher than ±1999 and lower than ±0.01 are displayed in powers of 10
3
Either a "10
this is required, and the value will be rounded off to 3½ digits. Examples follow:
actual
value +20°C
˚C
DEWPOINT
actual
value -100°C
˚C
DEWPOINT
2 3 4
J L N O P Q R S T U X Y Z
.
-3
" or "10 " will appear above and to the right of the displayed value, if
+68°F
˚F
DEWPOINT DEWPOINT
-148°F 0.013849
˚F
DEWPOINT DEWPOINT
5 6 7
23612 1104.2
ppmV lbs H 0/mmSCF
2
3
x10
PPM
DEWPOINT
0.00092115
ppmV lbs H 0/mmSCF
2
-3
x10
PPM
DEWPOINT
page 7
8 9
17.688
grams H 0/meters
2
LBS DEWPOINT G/M
0.00001475
grams H 0/meters
2
-3
x10
3
LBS DEWPOINT G/M
±3
.
3
3
3
-3
x10