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Service Menu
69
Document no. M1144955-001
4.15 Entropy
Check Sensor
Module measures the impedance of
sensor electrodes. Works the same way as from
Entropy menu or module key.
Module
Service data is changed to the module view.
Measurement
shows whether the Entropy
measurement is ON or OFF. Measurement should
start by itself when the sensor is attached to the
patient.
Last service
shows the date of last maintenance.
Entropy
refers to the respective module key. Is
highlighted when the Entropy key is pressed on the
module. (Opens the Entropy menu.)
Check Sensor
is highlighted when the Check Sensor
key is pressed on the module. Activates the sensor
check.
Mains
shows the currently used mains frequency, 50
or 60 Hz:
BSR Status
shows Burst if the module is not currently detecting suppressed EEG. Shows
Suppression if the module is detecting suppressed EEG periods.
Artefact
shows Off, if there is no high-frequency noise present, On if the module detects noise.
Diathermy
shows On, if the module is detecting diathermy (i.e., electrocautery).
AD clipped
shows On, if the signal is getting clipped at the A/D converter.
Alg. ver. (Mon)
shows the monitor algorithm version number.
Alg. ver. (Mod)
shows the module algorithm version number.
Alg. ver. used
shows the currently used algorithm version.
Timeouts
is a cumulative number that indicates how many times the module has not responded
to the monitor’s inquiry.
Mod Mon Bad Checksum
is a cumulative number that indicates how many times there has been
an error in the message from the module to the monitor.
Mon Mod Bad Checksum
is a cumulative number that indicates how many times there has been
an error in the message from the monitor to the module.
RAM
indicates the state of the RAM memory.
ROM
indicates whether the checksum at 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 states in memory
checks are
OK, Fail
or
?
(module not in place or a communication error).