GE b30, Technical Reference Manual

Page: 146 / 252

B30 Patient Monitor
5-20
Document no
.
2044677-001
4.4 NIBP Module
Service menu for Non-invasive Blood Pressure
Modules.
Service Data
Pressure shows the measured pressure multiplied
by 10. This value is automatically zero-drift
compensated.
Zero shows the difference between the zeroing
value in the permanent memory (stored when the
module is calibrated) and the current automatic
zero-drift compensation multiplied by 10. The value
can change b20 and -20 mmHg. If the zero
drift exceeds
±
10 mmHg, the module should be
recalibrated.
Protect handle indicates hardware protection for
EEPROM memory. It should be ON all the time in
normal operation. If it is OFF data can not be read
from or written to EEPROM, only the calibration
protection can be set or reset by software. It can be
turned to OFF by pressing the the NIBP module
buttons
Auto ON/OFF
and
Start Cancel
simultaneously for 3 seconds, which also enables Protection ON/OFF
menu selection in the calibration menu.
Calibr. prot. shows software calibration protection and it should be
OFF to enable calibration.
+15 V power refers to legacy NIBP modules. Not used in E-PSM(P)W.
AD0 to AD7 show the values of each eight channels of the A/D
converter. AD7 is not used in E-PSM(P)W.
Timeouts is a cumulative number that indicates how many times the
module has not responded to the monitor’s inquiry.
Bad checksums is a cumulative number that indicates how many
times communication from the module to the monitor has broken
down.
Bad c-s by mod is a cumulative number that indicates how many
communication errors the module has detected.
The monitor starts counting these items at power up and resets to zero
at power off. The nonzero values do not indicate a failure, but the
continuous counting (more than 5 per second) indicates either a serial
communication failure, or a module not in place. Also other modules
can cause communication errors that cause these numbers rise.
RAM indicates the state of the RAM memory.
ROM indicates whether the checksum in the EPROM is in accordance
with the one the software has calculated.
EEPROM indicates if the values stored in the permanent memory are
valid.
The state is either
OK , Fail or ? (module not in place or a
communication error).