Resetting the 890 series instruments

To perform an instrument reset proceed as follows:

• Press the two right-hand keys at the same time to ensure you are at the Main CHANNEL MENU.
• Next... press the left-most key until you reach the page with the "cal" prompt. 
• (Note: different 890 series units and some OEM units will have 3-5 pages. In any event, you are seeking the page with the prompt "cal" above the third key).
• Here, simultaneously press and release the two center keys (keys 2 & 3).
  
  This puts you into the BIT MENU (Burn In Test).
• Press the key beneath the word BURN.
• Next press the two center "reset" keys Simultaneously.
• Then press the key beneath the word EXIT.
• Next press the key beneath the word YES to reset RAM.
• After the unit completes the reset it should return to the main menu.
• If you are hooked to a printer or software you will need to reprogram the instrument for communication.
  
  **Note is is critical that the densitometer be re-calibrated following a reset,