Model：BHT-1700 series, BHT-1800 series
| File Name | Date of Update |
|---|---|
| BHT-1700/1800 series Software User's Manual 13th Edition (13MB) | 01/12/2022 |
| Version | Updated contents | Updated on |
|---|---|---|
| 13th Edition | --- | Jan 12, 2022 |
| 12th Edition | --- | Aug 05, 2021 |
| 11th Edition | --- | Feb 24, 2021 |
| 10th Edition | --- | Nov 30, 2020 |
| 9th Edition | --- | Jun 09, 2020 |
| 8th Edition | --- | May 21, 2020 |
| 7th Edition | --- | Dec 05, 2019 |
| 6th Edition | --- | Sep 27, 2019 |
| 5th Edition | --- | Mar 11, 2019 |
| 4th Edition | --- | Dec 27, 2018 |
| 1st Edition | --- | Jul 02, 2018 |
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