TEST INITIALIZATION
--___
When switched
into the
attenuator maximum
output
level
calibration the instrument will be initialized as follows:
Tone Type
= Current Selection
Frequency = Current Selection
Stimulus M
UX
= Oscillator Position
Channel = OFF
Attenuator Position = 255
+10
dB
Pad = Out
Transducer Routing = Current Selection
HL Display = Displays
"D4"
for 2 seconds and then
"255"
Response LED = OFF
Stimulus On LED = OFF
Low Battery Segment = Current State
"+"
Segment = OFF
TONE TYPE SWITCH
This switch
selects
the
tone
type.
The
calibration
would
normally be performed with Steady selected.
SWITCH ROUTING
-___
This switch selects the transducer.
FREQUENCY SELECTOR
This
knob selects the stimulus to be calibrated.
Its
operation
is the same as in the Normal Mode.
PRESENT BAR
---- __
The
Present Bar controls the presentation of the
stimulus.
It
operates in a
push ON/push OFF manner so, if it is
operated
(pressed and released) when the stimulus is OFF the stimulus will
be presented and will remain ON until the Present Bar is operated
a
second time.
The
+10
dB
pad will not be affected by
turning
the stimulus ON or OFF.
HL
SELECTOR
This
knob is used to directly set the attenuator position.
The
position is adjusted by
+0.5
dB
(1 step) for each clockwise
step
of the knob and by
-0.5
dB
for each counter clockwise step of the
knob.
The
allowable range of the attenuator position
will be
from 0 to 255.
When either of these limits
are
reached
the
attenuator
position will not change and the HL display will be
flashed.
39
To Next Page
Loading...
