Oceanographic Equipment

Model change information about XCTD probe

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 We would like to inform you that we will change the XCTD probe models in the future.

• a) All XCTD models will be changed, with a character “N” added to the end, named as XCTD-1N, 2N, 3N, 4N.
• b) There is no change in the performance or specifications.
• c) The convertor (MK-130/150N) and hand launcher, are used as usual.
• d) The Windows software should be updated.
• e) The shipment is scheduled to be after April, 2021.

 1. Details of model change

• a) With more and more circuit components/parts in the probe no longer in production, it’s difficult to obtain the equivalent or compatible ones. We have decided to switch to a “New circuit board” that uses alternative/succeeding parts.
  
• b) Regarding the water temperature circuit, we have reviewed the conversion formula which converts the resistance to the water temperature, and have adopted another conversion formula that has less variation.

 2. Software update

• a) The windows software, that changes the conversion formula of water temperature, is in preparation. 
• b) Though the current software can also operate the new probe, there will be errors due to different conversion formula.
• c) Though the errors are less than the resolution (0.01degC), have almost no effect. Please apply the updated software version.

< If you are using model MK150 >
An updated software version of standard product will be provided by download.
For customers using special specifications such as the Auto launcher, as its software should be customized, please contact us and then take suitable measures.

< If you are using old model MK130 >
It has been more than 10 years since the end of product shipment.
It will be difficult to update all versions including special specifications.
For the time being, the update for the following standard versions will be provided by download.

Ver2.06 : update for XCTD-1N new probe.
Ver3.02, 3.07, 3.09, 3.11, 3.12, 3.13: updated for XCTD-1N, 2N new probes.