DIP
SWITCH
#3
OPERATION WHILE
IN
CAL MODE
The
Cal Option Dip Switch
#3
is used to switch from
the
custom
RTL calibration mode to the transducer SPL calibration mode.
OTHER CONTROLS
All
other controls,
except the Cal/Normal Switch and Dip
Switch
#3,
are
inactive
during this mode.
mm
Operations of
all
other
controls will not be processed.
HL
DISPLAY
The
HL display is used to display the selected custom RTL
value
in
the format
xx.x.
using digits 1 through 3 of the HL
Negative values will be displayed with a minus sign.
display.
BATTERYSEGMENT
This LCD segment indicates a low battery voltage condition as in
the Normal Mode.
PATIENT
RESPONSE
This
LED indicates when the custom RTL value
has been stored
successfully in the EEPROM by turning on for 2 seconds.
OTHER DISPLAYS
All other
LEDs
and LCD segments are not used and will remain off.
4.8.3 DIP SWITCH S2
NOT USED
-
Exception when in Diagnostic Mode (Dip Switch
#1)
4.8.4
DIP SWITCH
S1
DIAGNOSTIC MODE
The
Diagnostic
Mode provides direct control over
the
hardware
components which
may
not
be available in the Normal or
Calibration
Modes.
This mode is provided to facilitate
and debugging of the board or instrument.
testing
The
Diagnostic
Mode consists of four diagnostic tests
and
one
calibration mode as follows:
Hardware Diagnostic test
Pushbutton Diagnostic test
Display Diagnostic test
A/D Diagnostic test
Attenuator Maximum Output Limit calibration
The features of the Diagnostic Mode are controlled manually
from
the front panel.
27
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