Welch-allyn LC101 CO2 Module - User Manual Instrukcja Użytkownika Pobierz pdf (Strona 72)

LC101 CO

Module OEM Implementation Manual

Page 72 Conﬁdential Welch Allyn OEM Technologies

System Faults

The majority of system faults are conditions that are internal to the Module and not caused by the

host. The exceptions are 81h, 82h, 84h and 85h.

To clear most system faults:

• Do a reset (with the exception of 81, 82, 84 and 85).

System faults are listed in the following table:

Status Message

Code (hex)

Deﬁnition Possible Causes

40 watchdog error •watchdog timeout

44 system EEPROM error

in CCITT/CRC code

•invalid system EEPROM CCITT/CRC code

46 system FLASH ROM

error in CCITT/CRC

code

•invalid FLASH ROM CCITT/CRC code

•faulty FLASH ROM chip

47 system communication

error

• microprocessor failure to complete task

• malfunctioning real-time operating system

4B system external RAM

error

•faulty system external RAM

4C system internal RAM

error

•faulty system internal RAM

4D system FLASH ROM

error in checksum

•invalid system internal FLASH data

•faulty FLASH ROM chip

4E stack overﬂow error • stack usage error

4F system main program

exited

• executive failure

80 pump failure •faulty pump;

• pneumatics disconnected

81 unexpected reverse ﬂow •watertrap/cannula/exhaust tubing not properly con-

nected

82 unexpected forward ﬂow •watertrap/cannula/exhaust tubing not properly con-

nected

84 barometric pressure too

high

• host system operating above 824 mmHg (1,150 ft

below sea level)

•faulty barometric transducer

85 barometric pressure too

low

• host system operating below 408 mmHg (15,000 ft

above sea level)

•faulty barometric transducer

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 97 98

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