Table of Contents

[Standard Diagnosis] Screen

Press HOME button - [Function] - [Diagnosis] - [Standard Diagnosis] to display [Standard Diagnosis] screen.
On the [Standard Diagnosis] screen, you can check the thresholds for each consumable, presence/absence of sensor error, operation of gas flow and operation of over temp protection. Use this screen to maintain the instrument and diagnose problems.

No.	Item	Description
	Start Diagnosis	Press [Start Diagnosis] to start standard diagnosis program. After the diagnosis, test result and number of failures are displayed.
	Diagnosis Setting	Displays [Diagnosis Setting] screen. Selects diagnosis items and determines setup values used for diagnostic reference.
	Last Results	Displays [Diagnosis Report] screen. Displays the result of the last self-diagnosis.

Cautions when starting the standard diagnosis¶

When the standard diagnosis is performed, among the units included in line configuration, the temperature is controlled for the column oven but not for the inlet and detector. Only gas is controlled for the inlet and detector.
Therefore, prepare the instrument for analysis before the standard diagnosis.
(For example, connect the column, supply each gas, and close the oven door)
Since the column temperature increases to 100 °C, when using the column of which maximum temperature is lower than 100 °C, remove the column and seal the column connection of the inlet and detector.

Diagnosis of ignition/illumination operation of the detector¶

The detector temperature is not controlled during the standard diagnosis, therefore, it is diagnosed by ignition/illumination operation after the instrument is turned on.
When ignition/illumination operation is not performed after the instrument is turned on or ignition operation is not performed after the flame is extinguished, the result of diagnosis becomes [Not Tested].

Diagnosis of carrier gas control/purge flow control¶

It is diagnosed at set inlet pressure, total flow and purge flow.
The result of diagnosis may become [Fail] when:

• The initial temperature of the column oven is set at a high value
• Split ratio is set at a low value
• Purge flow is set at a high value

When the result of diagnosis becomes [Fail], change each set value and perform the diagnosis again.
When the result becomes [Fail] even after changing the set value, contact your Shimadzu sales/service representative.

Diagnosis of over temp protection¶

It checks that the over temp protection operates correctly.
During diagnosis, gas control is started for the carrier gas of the inlet included in line configuration and AUX-APC and then the column temperature increases to about 100 °C. It is diagnosed by operating the over temp protection while increasing the temperature and checking that the heater is turned OFF.
Diagnosis is terminated and the result becomes [Note Tested] when:

• The instrument detects that the oven door opens during diagnosis
• An error related to the flow controller occurs during diagnosis
• Diagnosis is started when the column maximum temperature is set lower than 100 °C.

[Diagnosis Setting] Screen¶

Press HOME button - [Function] - [Diagnosis] - [Standard Diagnosis] - [Diagnosis Setting] to display [Diagnosis Setting] screen.
Diagnosis items can be set on [Diagnosis Setting] screen.

Item	Description
Septum Counter Liner Counter Syringe Counter	Verifies whether the number of usage is below the threshold. The threshold can be set on [Analysis Counter] screen.
CRG Usage Time	Verifies whether the operating time of CRG coolant is below the threshold. The threshold can be set on [Coolant Consumption] screen.
Temp Sensor Diagnosis	Verifies whether the temperature sensor operates correctly.
LCD Usage Time	Verifies whether the accumulated back light ON time is below the threshold. The threshold is 46380 hours.
Fan Usage Time	Verifies whether the accumulated fan operating time is below the threshold. The threshold is 61320 hours.
DC Volt	Verifies whether each DC voltage (5 V DC, 24 V DC) is below the threshold.
Room Temperature	Verifies whether the current room temperature is within the operation range. The threshold is 5 °C to 40 °C.
Atmospheric Press	Verifies whether the atmospheric pressure is within the operation range.
Primary Press	Verifies whether the carrier gas supply pressure is within the maximum set pressure.
CPU Register RTC Register	Verifies that each register is correctly written and read.
DET ROM	Verifies that the data saved in the detector ROM is read correctly.
DET ADC Register	Verifies that the data saved in the detector A/D converter register is read correctly.
DET HV Source	Verifies whether the detector high voltage power supply is below the threshold.
DET Ignite/Plasma ON Pulse	Checks that the ignition/plasma ON pulse is normal.
DET Ignition/Plasma ON	Checks that the ignition/plasma ON operation is normal.
ECD Frequency	Verifies whether the frequency of the pulse voltage applied to the ECD is below the threshold.
CAR Gas ROM DET Gas ROM APC ROM Gas Selector ROM	Verifies that the data saved in the flow controller ROM is read correctly.
CAR Gas ADC DET Gas ADC APC ADC Gas Selector ADC	Verifies that the data saved in the flow controller A/D converter is read correctly.
CAR Gas Control Purge Gas Control Makeup Gas Control H2 Gas Control Air Gas Control APC Gas Control Gas Selector Control	Checks that carrier gas, detector gas, AUX-APC, and gas selector are normally controlled.
Over Temp Protection	Ensure that the overheat protection circuit is normal.
ROM	Checks that the ROM is intact.
RAM	Verifies the RAM can be correctly written and read.
SCD Vacuum Pump SCD Ozone Scrubber SCD Inner Pyrotube SCD Outer Pyrotube	Verifies whether the number of usage is below the threshold. The threshold can be set on [SCD Parts Counter] screen.
SCD Furnace Temp. Sensor	Verifies whether the furnace temperature sensor operates correctly.
SCD ROM	Verifies that the data saved in the SCD ROM is read correctly.
SCD ADC	Verifies that the data saved in the SCD A/D converter is read correctly.
SCD Flow Control	Checks that SCD detector gas is normally controlled.

[Diagnosis Report] Screen¶

Press HOME button - [Function] - [Diagnosis] - [Standard Diagnosis] - [Last Results] to display [Diagnosis Report] screen.
You can see the list of items that Test Result and Diagnosis result are "Fail".

No.	Item	Description
	Diagnosis Report (Details)	Displays [Diagnosis Report (Details)] screen. You can see the results of self-diagnosis for each item.
	Test Result	You can see the list of items that Test Result and Diagnosis result are "Fail". ・Pass: Displayed when the diagnosis result is below the threshold. ・Fail: Displayed when the diagnosis result exceeds the threshold. ・Cancel: Displayed when the self-diagnosis was stopped.

[Diagnosis Report (Details)] Screen¶

Press HOME button - [Function] - [Diagnosis] - [Standard Diagnosis] - [Last Results] - [Diagnosis Report (Details)] to display [Diagnosis Report (Details)] screen.
You can see the results of self-diagnosis for each item.

• Test Result

  Item	Description
  Pass	Displayed when the diagnosis result is below the threshold.
  Fail	Displayed when the diagnosis result exceeds the threshold.
  Cancel	Displayed when the self-diagnosis was stopped.

• Detailed Diagnosis Result

  Item	Description
  Pass	Displayed when the diagnosis result is below the threshold.
  Fail	Displayed when the diagnosis result exceeds the threshold.
  Not Tested	Displayed when the self-diagnosis was stopped or when an item is excluded from the test.
  Not Applicable	Displayed when diagnostic test is disabled for the unit (ignition test for a TCD, for example).
  Not Selected	Displayed when the diagnosis were not performed on the item because it has not been configured in the analytical line. Certain diagnosis items can be performed for components which have not been configured. (Example: Does not check make up gas control, but checks its detector ROM.)
  Not Installed	Displayed when the diagnosis item is not installed.

Troubleshooting for [Fail]

Diagnosis Item	Solution
Septum Counter	Replace the septum.
Liner Counter	Replace the glass insert as needed.
Syringe Counter	Replace the AOC syringe as needed.
Room Temperature	Check the operation range.
Atmospheric Press	Check the operation range.
Primary Press	・Adjust supply pressure to the GC (with the regulator of the cylinder). ・Replace the cylinder.
DET Ignition	――
Any other item	Contact your Shimadzu sales/service representative.