6-12 PCS2 Service Manual
CODE TEXT MESSAGE DESCRIPTION SUGGESTED RESOLUTION
49
50
51
52
CHANNEL 2 TIME
BASE ERROR
LINE SENSOR
VOLTAGE TOO
LOW
LINE SENSOR
VOLTAGE TOO
HIGH
CONFIGURATION
CRC FAILURE
Safety system did not
post fault to register
during system start-
up Channel 2 time
base test.
Line sensor voltage
level is less than
acceptable value after
confirming sensor is
clean and no tubing is
installed (2252) (2.75
VDC).
Line sensor voltage
level is greater than
acceptable value after
confirming sensor is
clean and no tubing is
installed. (3890)
(4.75 VDC).
Configuration CRC
does not match value
stored in NVRAM.
1. Replace safety card.
2. Replace processor card. Using Utilities, calibrate all the
components under A/D, centrifuge, safety system, and
configure the language. Reset protocol parameters
(MODIFY key), if parameters were different from
default values.
1. Use Utilities to display the line sensor digital voltage in
Diagnostics under transducers. Measure the analog line
sensor voltage to gnd at J105 pin 8 on the processor card.
Divide the digital reading by 819 to convert to analog
voltage.
2. If converted digital voltage equals measured analog
voltage, calibrate the digital line sensor voltage to 2866 -
3276 (3.75 ± 0.25 VDC) by adjusting trim pot located
inside line sensor. (Remove access hole plug.) If line
sensor cannot be calibrated, replace line sensor.
3. If voltages differ significantly, replace processor card.
Using Utilities, calibrate all the components under A/D,
centrifuge, safety system, and configure the language.
Reset protocol parameters (MODIFY key), if parameters
were different from default values.
1. Use Utilities to display the line sensor digital voltage in
Diagnostics under transducers. Measure the analog line
sensor voltage to gnd at J105 pin 8 on the processor card.
Divide the digital reading by 819 to convert to analog
voltage.
2. If converted digital voltage equals measured analog
voltage, calibrate the digital line sensor voltage to 2866 -
3276 (3.75 ± 0.25 VDC) by adjusting trim pot located
inside line sensor (remove access hole plug). If line
sensor cannot be calibrated, replace line sensor.
3. If voltages differ significantly, replace processor card.
Using Utilities, calibrate all the components under A/D,
centrifuge, safety system, and configure the language.
Reset protocol parameters (MODIFY key), if parameters
were different from default values.
1. Reconfigure the language in Utilities.
2. Replace processor card. Using Utilities, calibrate all the
components under A/D, centrifuge, safety system, and
configure the language. Reset protocol parameters
(MODIFY key), if parameters were different from
default values.
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