TSI Incorporated Alnor LoFlo Balometer, Owner'S Manual

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remain as the start-up default setting unless changed
by the user.
6. To return to the factory calibration setting, “ FAC ”,
press and hold the range selector button while
simultaneously switching the instrument on. Select
the “
FAC ” setting by depressing the handle hold
switch. The factory calibration has just been
restored as the default operating setting. Stored
coefficients in “
FLD A ” and “ FLD B ” will remain
for future use.
NOTES:
• Always use the factory calibration setting, “ FAC ”,
in determining the correction factors.
• Correction factors must be in the range of 0.250 to
1.999 (0250 to 1999 without the decimal point).
• Use of correction factors greater than 1.000 may
cause the display to indicate a flow value at zero
flow (typically 12-13 CFM at zero flow). This is
normal and will limit the use of correction factors at
the extreme low-end of the operating range.
• Do not use measurements which are less than
10 CFM * correction factor. For example, if you
program a correction factor of 1.5, do not use
measurements less than 15 CFM (10 * 1.5 = 15).