Service Menu
27
Document no. M1137266-02
4.5 PP
Service menu for Dual Invasive Pressure Module,
E-PP.
Calibrations:
Record Data
prints out the service data and circuit
board information (id., serial number, and software
id.) on the recorder.
Service Data
Gain
is a coefficient to compensate for gain error.
Usually the values for P5 and P6 are between 17000
and 25000.
Zero
indicates the offset compensation value for
each parameter in the A/D converter. Typically the
values for P5 and P6 are within
±
1000. Calibrate if the
zero and/or gain value is outside the ranges.
Cable
shows ON when the corresponding cable is
connected to the front panel and
Probe
shows ON
when the corresponding probe is connected to the
cable.
Value
displays the measured numeric values simultaneously. The pressure value is a real time value and
shown in mmHg.
Button
; the front panel key function can be confirmed by pressing the key and checking that OFF turns to ON.
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 failed.
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 values may also be
reset when a module is attached to the monitor frame and be set to 32769 or continuous counting may be
started when the module is removed from the monitor frame.
The nonzero values do not indicate a failure, but the continuous counting (more than 5 per second) or value
32769 indicates either a serial communication failure or a module not in place. Also failures in other modules
may cause these numbers to rise or be set to 32769.
RAM
indicates the state of the RAM memory.
ROM
indicates whether the checksum in the EPROM is in accordance with the software calculated value.
EEPROM
indicates whether the values stored in the permanent memory are valid. The state is either
OK, Fail
or
?
(module not in place or a communication error).
Summary of Contents for Datex-Ohmeda S/5
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