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Frequently asked questions and answers

Frequently asked questions from our customers are listed below.
If you cannot find your answers, or if you have any other questions, please contact us.

 

 

RA-3000: Frequently asked questions and answers

I cannot create a calibration curve. What should I do?

  • Has the sample bottle been contaminated?
  • Has the piping system been contaminated?
  • Is the reagent or the reagent bottle contaminated?

Wash or replace.

  • Was the standard solution prepared correctly?
  • Has it since degraded? Is the L-cysteine too old?

Prepare another standard solution.

  • Are there any leaks?

Repair the leak.

  • Verify that the air pump is working correctly?

Please contact us if it is not.

The blank value is too high. What should I do?

  • Has the sample bottle been contaminated?
  • Has the piping system been contaminated?

Wash or replace.

  • Has the reagent or the reagent bottle been contaminated?

Prepare another reagent.

  • Did you measure some very concentrated mercury?

Replace and wash it according to the countermeasures to use with highly concentrated contamination.

  • Are there increasing concentrations of mercury in the ambient environment?

Ventilate, remove the source, or move the equipment to another room.

The sensitivity is too low. What should I do?

  • Was the standard solution prepared correctly? Has it since degraded?

Prepare another standard solution.

  • Has the piping system been contaminated?

Wash or replace.

  • Was the specified amount of reagent dropped?

Replace the reagent pump tube.

  • Are there any leaks?

Repair the leak.

The peak shape is abnormal. What should I do?

  • Has the reagent (tin (II) chloride) degraded?

Prepare another reagent.

  • Are there any leaks?

Repair the leak.

  • Does the sample contain any interfering substances such as halogens?

Dilute the sample and perform measurement.

  • Is the stirrer too worn to rotate sufficiently?

Replace the stirrer with a new one.

  • Is the stirrer motor rotating correctly?

Please contact us if it is not.

  • Has the lamp degraded?

Please contact us.

No peak appears. What should I do?

  • Has the reagent (tin (II) chloride) degraded?

Prepare another reagent.

  • Are there any leaks?

Repair the leak.

  • Are the V1 and V2 valves working correctly?

Replace if they are not.

  • Does the sample contain any interfering substances such as halogens?

Dilute the sample and perform measurement.

  • Has the lamp degraded?

Replace the lamp.

No bubbling occurs. What should I do?

  • Is the reaction cap loose?
  • Are there any leaks from the joint?
  • Is the drain tank closed?

Repair the leak.

  • Has the bubbler been broken?

Replace the bubbler.

  • Are there any cracks or chips in the sample bottle?
  • Did you replace the mist catcher?
  • Is the V1 valve working correctly?

Please contact us if it is not.

  • Verify that the air pump is working correctly?

Please contact us if it is not.

The equipment is contaminated with highly concentrated mercury. What should I do?

Wash or replace the bubbler, cell and dehumidifier tube. Replace the mist catcher and the whole piping system.

Do any precautions need to be taken when disposing of the equipment?

The mercury lamp and active carbon filter in the equipment contain mercury.
 

 

 

RA-4000: Frequently asked questions and answers

I cannot create a calibration curve. What should I do?

  • Has the sample bottle been contaminated?
  • Has the piping system been contaminated?
  • Is the reagent or the reagent bottle contaminated?

Wash or replace.

  • Was the standard solution prepared correctly? Has it since degraded?
  • Is the L-cysteine too old?

Prepare another standard solution.

  • Are there any leaks?

Repair the leak.

  • Verify that the air pump is working correctly.

Please contact us if it is not.

The blank value is too high. What should I do?

  • Has the sample bottle been contaminated?
  • Has the piping system been contaminated?

Wash or replace.

  • Is the reagent or the reagent bottle contaminated?

Prepare another reagent.

  • Did you measure some very concentrated mercury?

Replace and wash according to the countermeasures to use with highly concentrated contamination.

  • Are there increasing concentrations of mercury in the ambient environment?

Ventilate, remove the source, or move the equipment to another room.

The sensitivity is too low. What should I do?

  • Was the standard solution prepared correctly? Has it since degraded?

Prepare another standard solution.

  • Has the piping system been contaminated?

Wash or replace.

  • Was the specified amount of reagent dropped?

Replace the reagent pump tube.

  • Are there any leaks?

Check for any leaks, and then repair.

The peak shape is abnormal. What should I do?

  • Has the reagent (tin (II) chloride) degraded?

Prepare another reagent.

  • Are there any leaks?

Repair the leak.

  • Does the sample contain any interfering substances such as halogens?

Dilute the sample and perform measurement.

  • Is the stirrer too worn to rotate sufficiently?

Replace the stirrer with a new one.

  • Is the stirrer motor rotating correctly?

Please contact us if it is not.

  • Has the lamp degraded?

Please contact us.

No peak appears. What should I do?

  • Hasn’t the reagent (tin (II) chloride) degraded?

Prepare another reagent.

  • Are there any leaks?

Repair the leak.

  • Do the V1 and V2 valves operate correctly?

Replace if they are not.

  • Does the sample contain any interfering substances such as halogens?

Dilute the sample and perform measurement.

  • Has the lamp degraded?

Replace the lamp.

No bubbling occurs. What should I do?

  • Is the reaction cap loose?
  • Are there any leaks from the joint?
  • Is the drain tank closed?

Repair the leak.

  • Is the bubbler broken?

Replace the bubbler.

  • Are there any cracks or chips in the sample bottle?
  • Did you replace the mist catcher?
  • Is the V1 valve working correctly?

Please contact us if it is not.

  • Verify that the air pump is working correctly.

Please contact us if it is not.

A flow error occurs.

This error occurs once the flow rate has dropped to 0.1 L/min during a measurement. Check that the air pump is corking correctly, and check for any leaks.
 

The equipment is contaminated with high concentrations of mercury. What should I do?

Wash or replace the bubbler, cell and dehumidifier tube. Replace the mist catcher and the whole tubing system.
 

Please explain to me how to check for any leaks.

Open the software, and click “Run” -> “Leak check” from the menu. Set an empty test tube in No.1, and click “Start.” The leak check will be complete in approximately 10 seconds, and the results will be displayed.

Do any precautions need to be taken when disposing of the equipment?

The mercury lamp and active carbon filter in the equipment contain mercury.
 
 

 

 

MA-3000: Frequently asked questions and answers

I cannot create a calibration curve. What should I do?

  • Has the boat flow been contaminated?
  • Has the piping system been contaminated?

Wash or replace.

  • Was the standard solution prepared correctly? Has it since degraded?

Prepare another standard solution.

  • Are there any leaks?

Check for any leaks, and then repair.

  • Is the oxygen gas pressure within the specified value?

Adjust the pressure of the gas.

The blank value is too high. What should I do?

  • Has the boat flow been contaminated?
  • Has the piping system been contaminated?

Wash or replace.

  • Did you measure some very concentrated mercury?

Replace and wash according to the countermeasures to use with highly concentrated contamination.

  • Are there increasing concentrations of mercury in the ambient environment?

Ventilate, remove the source, or move the equipment to another room.

The sensitivity is too low. What should I do?

  • Was the standard solution prepared correctly? Has it since degraded?

Prepare another standard solution.

  • Has the piping system been contaminated?

Wash or replace.

  • Are there any leaks?

Check for any leaks, and then repair.

The peak shape is abnormal. What should I do?

  • Are there any leaks?

Check for any leaks, and then repair.

  • Does the sample contain any interfering substances such as halogens?
  • Has the lamp degraded?

Please contact us.

No peak appears. What should I do?

  • Does the sample contain any interfering substances such as halogens?
  • Has the lamp degraded?

Please contact us.

A flow error occurs.

This error occurs once the flow rate of the flow controller has dropped to half of the set value. Check the secondary supply pressure of oxygen, and check for any leaks. If there are no leaks, replace the sample heating tube.

The equipment is contaminated with high concentrations of mercury. What should I do?

Wash or replace the boat handling rod, cell and joint. Replace the tubing system, collector tube and sample heating tube.
 

Please explain to me how to check for any leaks.

Open the software, and click “Run” -> “Leak check” from the menu. Close the sample inlet, and the leak check will start. It is acceptable if the value reaches 0.01 L/min within 30 seconds.

Do any precautions need to be taken when disposing of the equipment?

The mercury lamp and active carbon filter in the equipment contain mercury.
 

 

 

PE-1000: Frequently asked questions and answers

I cannot create a calibration curve. What should I do?

  • Has the vial been contaminated?
  • Has the piping system been contaminated?

Wash or replace.

  • Has the cleaning fluid been contaminated?
  • Was the standard solution prepared correctly? Has it since degraded?

Prepare another standard solution.

  • Are there any leaks?

Check for any leaks, and then repair.

  • Is the pressure of the argon and air within the specified ranges?

Adjust the pressure of the gas.

The blank value is too high. What should I do?

  • Has the vial been contaminated?
  • Has the piping system been contaminated?
  • Has the syringe been contaminated?

Wash or replace.

  • Has the cleaning fluid been contaminated?

Prepare a different batch of cleaning fluid.

  • Did you measure some very concentrated mercury?

Replace and wash according to the countermeasures to use with highly concentrated contamination.

  • Are there increasing concentrations of mercury in the ambient environment?

Ventilate, remove the source, or move the equipment to another room.

The sensitivity is too low. What should I do?

  • Was the standard solution prepared correctly? Has it since degraded?

Prepare another standard solution.

  • Has the piping system been contaminated?

Wash or replace.

  • Are there any leaks?

Check for any leaks, and then repair.

The peak shape is abnormal. What should I do?

  • Are there any leaks?

Check for any leaks, and then repair.

  • Does the sample contain any interfering substances such as halogens?
  • Has the lamp degraded?

Please contact us.

No peak appears. What should I do?

  • Are V1 and V3 valves working correctly?

Replace if they are not.

  • Does the sample contain any interfering substances such as halogens?
  • Has the lamp degraded?

Please contact us.

No bubbling occurs. What should I do?

  • Are there any leaks from the joint?

Repair the leak.

  • Are there any chips in the impinger?

Replace.

A flow error occurs.

This error occurs when the flow rate of argon gas or the air is abnormal. Check their secondary supply pressures, and check for any leaks.

The equipment is contaminated with highly concentrated mercury. What should I do?

Wash or replace the sample inlet, cell and joint. Replace the tubing system, sample heating tube, septum and collector tube.

Please explain to me how to check for any leaks.

Open the software, and click “Run” -> “Leak check” from the menu. Note that CHECK 1 through CHECK4 are available. Click the appropriate one.

CHECK1: Checks for leaks in the heating tube -> drain line. Confirm that the flow rate has reached 0.06 ± 0.01 L/min after one minute.

CHECK2: Checks for any leaks in the measurement line. If a difference in flow rate of 0.005 L/min or more when compared with the flow rate of CHECK1 has resulted, then there may be some minor leak.

CHECK3: Used when you have connected the collector tube heating furnace (RH-PE: optional). Decision is made in the same way with CHECK2.

CHECK4: Checks for any leaks from valve V6 (switching between argon and air). Confirm that the flow rate has dropped to zero after one minute.

Do any precautions need to be taken when disposing of the equipment?

The mercury lamp and active carbon filter in the equipment contain mercury.
 

 

 

WA-5A: Frequently asked questions and answers

I cannot create a calibration curve. What should I do?

  • Has the piping system been contaminated?

Wash or replace.

  • Are there any leaks?

Check for any leaks, and then repair.

  • Does the standard gas box temperature fluctuate?
  • Verify that the air pump is working correctly.

Please contact us if it is not.

The blank value is too high. What should I do?

  • Has the piping system been contaminated?

Wash or replace.

  • Did you measure some very concentrated mercury?

Replace and wash according to the countermeasures to use with highly concentrated contamination.

  • Are there increasing concentrations of mercury in the ambient environment?

Ventilate, remove the source, or move the equipment to another room.

The sensitivity is too low. What should I do?

  • Was the standard gas correctly removed using the syringe?

Check for a loose fit with the syringe needle.

  • Has the piping system been contaminated?

Wash or replace.

  • Are there any leaks?

Check for any leaks, and then repair.

The peak shape is abnormal. What should I do?

  • Are there any leaks?

Check for any leaks, and then repair.

  • Has the lamp degraded?

Please contact us.

No peak appears. What should I do?

  • Is the VA valve working correctly?

Replace if it is not.

  • Does the sample contain any interfering substances such as halogens?
  • Has the lamp degraded?

Please contact us.

A flow error occurs.

This error occurs once the flow rate has dropped to 0.2 L/min during a measurement. Check that the pump is working correctly, and check for any leaks.
 

The equipment is contaminated with highly concentrated mercury. What should I do?

Wash or replace the cell, gas scrubber bottle, dehumidifying bottle and joint. Replace the tubing system, collector tube and septum.
 

Please explain to me how to check for any leaks.

Open the software, click “Run” -> “Flow adjust and leak check” -> “Leak check” from the menu, detach the standard gas injection port, and close the end of the collector tube with your finger. If there are no leaks, then the flow rate will drop to approximately zero.

* After checking for any leaks, gradually slide the finger that was closing off the end of the collector tube away. Suddenly releasing it may release the collector into the path.

Do any precautions need to be taken when disposing of the equipment?

The mercury lamp and active carbon filter in the equipment contain mercury.
 

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