Service Menu
35
Document no. M1144955-001
4.7.2 NIBP Calibration
How to Calibrate
Calibration selection is available only when protection is OFF.
NOTE: Both channels B1 and B2 must be calibrated simultaneously.
NOTE: The module must be in the frame during the whole procedure.
NIBP calibration can be performed in the NIBP Service menu as follows:
1.
If
Protection
is
ON
, change it to
OFF
by pressing the NIBP module buttons
Auto ON/OFF
and
Start Cancel
simultaneously for 3 seconds, which enables the
Protection
selection.
Then press the buttons again for 3 seconds to enable
Calibration
.
NOTE: When the buttons have been pressed, the NIBP field shows an error message
‘Calibration switch on!’.
NOTE: For M-NE(12)STPR series modules: If
Protection
is
ON,
change it to
OFF
by first turning
the toggle switch to the right at the bottom of the module, which enables the
Protection
selection. Then turn the toggle switch to the left to enable
Calibration
. When the switch is at
the right, the NIBP field shows an error message ‘Calibration switch on!’
NOTE: When calibration is enabled, a message ‘Calibration not protected’ appears.
2.
For proper zeroing to take place, remove the hose from the front panel connector. Select
Calibration
and push the ComWheel. Messages ‘Zeroing’ and ‘Zeroed’ will appear in the
NIBP message field. After this, a pressure bar will appear beside the menu and the text
‘Calibrating’ will appear in NIBP digit field.
Active Leak Test:
Wrap an adult cuff around a pipe
and connect the cuff to the module. Select the
active leak test (ON). The module automatically
pumps a pressure of 260 mmHg into the cuff. Wait
for several seconds until the pressure stabilizes.
Then check that the pressure reading does not drop
more than 6 mmHg per minute. If it does, leaking
point(s) should be detected and fixed. Cancel the
test by selecting the Active leak test OFF.
Calibration Check:
After the calibration check is
selected (ON), the module zeroes the pressure
transducers at the beginning of the calibration
check. Do not pump pressure until the text
‘Calibrating’ appears in the NIBP digit field or the
zeroing will fail. After the zeroing is done, manually
pump pressure into the module and make sure that
the same pressure values are shown both on the
display and on the manometer. Pressure of both
pressure channels B1 and B2 are shown. The
pressure values are automatically zero-
compensated, so the readings of B1 and B2 should be the same as the manometer readings.
Protection:
Software calibration protection (ON/OFF). Select
OFF
when calibrating.
Protection
selection
becomes available in the menu after pressing the NIBP module buttons
Auto ON/OFF
and
Start/Cancel
simultaneously for 3 seconds. For M-NE(12)STPR series modules: Protection can be set ON or OFF only when
the toggle switch at the bottom module is set to the right.
