{"id":4788,"date":"2021-02-10T10:04:18","date_gmt":"2021-02-10T17:04:18","guid":{"rendered":"https:\/\/www.circuitspecialists.com\/blog\/?p=4788"},"modified":"2021-08-04T11:58:56","modified_gmt":"2021-08-04T18:58:56","slug":"how-to-calibrate-the-ppb-272b","status":"publish","type":"post","link":"https:\/\/www.circuitspecialists.com\/blog\/how-to-calibrate-the-ppb-272b\/","title":{"rendered":"How to Calibrate the PBB-272B"},"content":{"rendered":"\n

When you need a higher level of accuracy in your experiment, you can calibrate the PBB-272B power breadboard<\/a> for the best results.<\/p>\n\n\n\n

Caution: handle the unit with care as electrocution may be possible. <\/p>\n\n\n\n

Parts list:<\/p>\n\n\n\n

  1. A good digital multimeter<\/a>.<\/li>
  2. Two Pomona Banana Plug Patch Cord<\/a>.<\/li><\/ol>\n\n\n\n

    First, removing the side screws.<\/p>\n\n\n\n

    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Second, remove the screws from the bottom of the unit.<\/p>\n\n\n\n

    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Step 3: Carefully remove the back of the unit and set it aside. Note that the transformer is mounted in the back panel.<\/p>\n\n\n\n

    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Step 4: Set the unit standing on its side so that you can see the digital panel and have stable access to the VR1 and VR2.<\/p>\n\n\n\n

    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Step5: Hook up one of the PBB-272B outputs to a digital meter, in this case, the Mastech MS8050<\/a>. <\/p>\n\n\n\n

    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Step 6: Now you can turn the unit on. Turn the VR1 clockwise or counterclockwise accordingly so the value in the PBB-272B digital panel for 0~15V matches the value on the digital meter.<\/p>\n\n\n\n

    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Step7: Make sure you move the test lead to the correct port. Then, turn the VR2 clockwise or counterclockwise accordingly so the value in the PBB-272B digital panel for 0~-15V matches the value on the digital meter.<\/p>\n\n\n\n

    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Step8: Turn the unit off, unplug all of the test leads before reassembling the unit. Do a quick test after the reassemble to ensure the adjustment didn\u2019t change during the assembly process.<\/p>\n\n\n\n

    \"\"<\/a>
    PBB-272B<\/a><\/figcaption><\/figure><\/div>\n\n\n\n

    Conclusion<\/h2>\n\n\n\n

    Calibrate your PBB-272B is a good practice for any electrical engineer since maintenance testing equipment is a big part of the engineer’s work. Furthermore, you can use these steps to calibrate simple power supply units or other similar electronic equipment. <\/p>\n\n\n\n

    If you want to learn more about these calibration processes, you can read How to Test and Calibrate Power Supply Voltage\/Current Readings<\/a>. <\/p>\n","protected":false},"excerpt":{"rendered":"

    When you need a higher level of accuracy in your experiment, you can calibrate the PBB-272B power breadboard for the<\/p>\n","protected":false},"author":10687,"featured_media":4816,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[1,226,27,21,240,4],"tags":[142,188],"class_list":["post-4788","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-posts","category-announcements","category-breadboards","category-education-kits","category-experiments","category-power-supplies","tag-breadboards","tag-power-supplies"],"yoast_head":"\nHow to Calibrate the PBB-272B | Simply Smarter Circuitry Blog<\/title>\n<meta name=\"description\" content=\"Here is how you can calibrate the PBB-272B so that it could give you a higher level of accuracy\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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