CHAPTER 2 SERVICE MENU
FC5515R Centrifuge Service Manual 2-11 Ohaus Corporation www.ohaus.com
If the word „Error“ appears in the display (see figure 26), the imbalance sensor is
defective and you have to replace the whole rotary encoder board (mounted on the
lower side of the motor).
Figure 26: Display Error Message
2.1.13 Submenu Keyboard Test
The keyboard test is used for checking the correct function of the foil keyboard.
Activate the operation menu as described in chapter 2.1.1.
Turn the potentiometer (12) until the special digit “service P“ appears in the display
“acc/dec“ (A-2).
Figure 27: Sebmenu Keyboard Test
By pressing each key the word “PrESS“ switches from the bottom to the top line in the
display “rpm/rcf“ (A-1). The key accel/decel (5) excluded.
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