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Verfügbare Sprachen
Verfügbare Sprachen
F. PRESSURE CALIBRATION
The pressure calibration test mode is entered into for the purpose of adjusting the sen-
sitivity of the transducer circuit for optimal accuracy and for checking the linearity at
three separate points.
1. When the PRESSURE CALIBRATION
TEST option is selected, the menu for the
pressure calibration options will be dis-
played on the LCD panel as follows:
PRESSURE CALIBRATION MODES
LOW RANGE CALIBRATION
MODE
MID RANGE CALIBRATION
MODE
HI RANGE CALIBRATION
MODE
manometer as shown in the figure below.
QUIT
(lf a test chamber is not available, an
adult cuff wrapped around a towel may
be substituted for the Pressure Calibra-
2. Connect the 700cc test chamber and
tion Test.)
.
The cursor may be moved by
pressing the arrow keys.
When
the
cursor is at the
OOOO
en
the
i
desired menu option, press
TREND SELECT to perform
that function. Selecting QUIT
exits the pressure calibration
mode.
E ==
г
3. Select LOW, MID, or HI
ACCUTORR 3/4
MERCURY
COLUMN
"T* CONNECTOR
range calibration to inflate the
cuff (or calibration canister) to
approximately 50mmHg
(for
LOW),
100mmHg (for MID), or
250mmHg
(for Hi).
700 co TEST CANNISTER
During this time the pressure will be displayed in the MEAN window and the message
"PRESS HOLD TO VENT GUFF" will display on the LCD panel.
After the desired tar-
get pressure is reached, the pump will turn off and the pressure will be held until the
user presses the HOLD key. Then the pressure will be released and another calibra-
tion may be performed after the pressure drops to OmmHg.
5. Compare the MEAN display on the ACCUTORR with the reading on the
manometer.
The calibration tolerance as follows:
+/- 3mmHg for LOW RANGE
+/- 3mmHg for MID RANGE
+/- 4mmHg for HI RANGE
NOTE:
ff the unit is out of
calibration, see Calibration
Section 4.
Revised 08/24/90
1-35
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