Dwyer TFM-LP - Manual (Page 15)

F-20-TF-L, pg. 15 of 30
Flow readings may be taken directly from the display or by monitoring the
0-5VDC analog output provided by using a cable assembly or power
adapter package (see above).
LCD Flow Display
(TFM-LI Series Shown, other models similar)
4. Operating at Flow Rates Outside the Calibrated Flow Range
CAUTION: If the flow through the unit exceeds 120% of the
maximum rated (full scale) flow the unit may be damaged. This
type of damage will not be repaired under warranty.
Flow measurement is only accurate within the calibrated flow range for the
unit. This is detailed on the calibration certificate. The unit will still operate, to
some degree, outside this flow range.
Results obtained when operating outside the specified range of the unit are
not accurate but may be considered repeatable.
a) Flows Above the Maximum Rated Flow.
If the flow rate is above the maximum rated (or full scale) flow, the unit will
still operate and provide an output signal proportional to the flow rate.
Flows must not exceed 120% of the maximum rated flow or the unit may be
damaged.