HP Hewlett Packard / Agilent / Keysight 08590-60117 A5 Second Converter 134419476654 but then the screen displays

but then the screen displays a different voltage than what I just set it to

Manufacturer HP Model Number AK377A SKU 19-67516 Ref 23-96248

Manufacturer Bigston Model Number BSD-300 SKU 19-66937 Ref 23-95339

Includes 1x: PG51GC coarse grid with grid holder

HP Hewlett Packard / Agilent / Keysight 08590-60117 A5 Second Converter 134419476654 but then the screen displaysCondition Used Description Recently removed from working service and guaranteed functional. Cosmetically has wear from previous use including scuffs and scratches. Includes Second Converter as pictured. No additional items or accessories are included. Quantity listing with reference photo, you may not receive the actual item pictured. Inventory is on hand and ready to ship. Please feel free to message us with any questions you may have. Thank you for