Hach 2100P - Page 64

64
SECTION 4, continued
9. Replace the battery(s) and battery cover.
10. Insert the 800 NTU formazin standard into the sample cell. Press
and hold
READ. Then press I/O. Release the READ key after the
software version number disappears from the display (for models
with serial numbers less than 920300000800,
2100 disappears).
READ
I
O