Firmware for RMH-301A Ver.02.00


  • Digital strain recorderIf all the conditions listed below were met when the data was collected on the USB memory in RMH-301A, the time and day were not updated and the next measurement was carried out at the same time on the same day of the following month, meaning the loss of data for a month.


  • The firmware version is 1.04 or earlier.
  • An interval measurement took place during data collection on the USB memory.
  • After data collection, power was turned off in less than half the time between the previous and next interval measurements.

Installation instructions

Downloaded firmware:
After extracting Ver. 1.05, copy the file onto USB memory, and connect the memory to RMH-301A for an update. See the RMH-301A Update Guide for how to update the firmware.

Implementation Note

Update the firmware to Ver. 1.05.
No update is needed for Ver. 2.00 (the incident only affects Ver. 1.04 and earlier).

The file may not be extracted correctly depending on the decompression program. If this is the case, try extracting the file with another decompression software package and installing the software.

  1. The copyright to the software provided in this service (“software”) is owned by Kyowa Electronic Instruments Co., Ltd. or individuals listed as copyright holders.
  2. Unauthorized duplicating, copying, reprinting and changing of the software, in whole or in part, is prohibited by law.
  3. The software may be changed for the purpose of improvement without notice.
  4. Kyowa Electronic Instruments is not liable for any result of saving (downloading) and operating the software.
  5. This service is provided for the customers who use our products applicable to the service.
  6. Before installing the product, please read the agreement below. By installing the product, you are consenting to be bound by and become a party to this agreement. If you do not agree to all of the terms of this agreement, do not install the product and delete the product and its duplicates from your computer memory or hard disk.

Client License Agreement

The customer and Kyowa Electronic Instruments Co., Ltd. (“company”) agree the following concerning the use of the software package (“software”), copyright to which is owned by the company:

Article 1. (License Agreement)

The company grants the customer a license to use the software on a single computer.
The company prohibits the customer from diverting, transferring, selling or leasing the software for any purpose.

Article 2. (Disclaimer of Warranty)

The company makes no warranty as to the quality and performance of the software (*). The company may change the software for improvement without notice. Under no circumstances shall the company be liable for the result of using the software by the customer (*).

Including but not limited to shareware, freeware, sample programs, and updates.

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