MALFUNCTIONS AND DISPLAYED ERROR HESSAGES. CMI/MPH INTOXILYZER 5000
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MALFUNCTIONS AND DISPLAYED ERROR MESSAGES (
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"NOTREADY"AndThe Diagnostic Checks
When one turnsltonltthe Intoxilyzer 5000R breath analysis instrument, "NOT READY" appears on the display.
While in ItNOT
READY," the instrument purges its sample chamber, initializes the computer, processor, and printer~ and deactivates the "START
TESI"-button.
Upon exiting ItNOT READY," the instrument performs the following diagnostic checks on its components and operational standards:
Display Reads
Components or Standard
Being Checked
"PROM CHECK ####" ERROR chips on CPU board: the instrument is finding a checksum of all program bytes and is comparing i t to an internal checksum.
2 .
3.
4 .
"TEMP CHECK"
ItRAM CHECK"
ItpROCESSOR CHECK"
Temperature chamber.
of the sample
RAM chip on CPU board: The instrument is carefully checking each byte in RAM for possible failure.
Output of the processor and the stability of the signal.
5.
"PRINTER CHECK" Movement of the printer head.
If the unit lecates a malfunction while performing the diagnostic checks, the display glves an error - message and a low-high tone seunds intermittently for approximately five seconds.
For example, if the temperature of the sample chamber is too low,
"TEMP ERROR" appears on the display and the low-high tone sounds.
The "START TEST" button remains deactivated until the instrument completes the diagnostic checks without finding a malfunction.
The follOWing are the error messages that may appear on the display during the diagnostic checks and the actions you should take in response to a given error message:
53
Displayed-Error Messages
"PROM ERROR###"
"TEMP ERROR"
"PRINTER ERROR"
"RAM ERROR ###"
!'PROCESSOR ERROR 1 OR 2" corrective operator Actions
Trip the computer "RESET" switch located on the back of the instrument. Tripping the computer "RESET" switch cancels all operatiOns and returns the instrument to its initial "NOT READY" condition.
After exitingnNoT'READY," the instrument performs the diagnostic checks.
If the error message again appears on the display, turn the instrument "off" and consult a repair technician.
"PROCESSOR ERROR 3, 4, OR 5" displayed for approximately five seconds followed by "DVM
TEST .###"
The three digit number displayed with "DVM TEST" is the processor's output, which normally ranges between .020
and .600.
If the number is between .000
and .600, trip the computer "RESET" switch located on the back of the instrument.
The instrument will return t6 "NOT READY" and subsequently perform the diagnostic checks.
"instrument again
If the displays
"PROCESSOR ERROR 3, 4, OR 5"
"followed by "DVM TEST .
###,0' turn the instrument "off" and consult a repair tBchnician.
When the displayed number is greater than .600, wait until the number drops to or below
.600; then trip the computer
"RESET" switch.
In the event that the number does not drop to or below .600
in apprOXimately 10 minutes, turn the inst.rurnent
"off" consul t a repair t"echnician.
and
After completing the diagnostic checks without finding a malfunction, the instrument displays "DIAGNOSTIC OK." Next, the instrument reactivates the "START TEST" button" and indicates that itis.ready for operation displaying thefollowinq message:
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