![background image](http://html1.mh-extra.com/html/omega/flr-1000/flr-1000_user-manual_4124574020.webp)
pg. 20 of 33
ii.) Adjust the scaling endpoints in the display or data acquisition system.
For example:
For a unit with a flow range of 50-500ml/min and a 0-5VDC output:
With a constant flow and constant 5VDC output the actual volume
measured
over 60 seconds was 405ml.
Therefore the actual flow rate is:
(405 / 60) x 60 = 405ml/min
The display or data acquisition system may now to configured as
follows:
0 VDC = Zero flow
5VDC = 405ml/min
iii.) Apply the error factor to each flow reading taken. For example:
For a unit with a flow range of 0.2-2.0l/min connected to a display:
With a constant flow rate of 2.0 l/min on the display, the actual
volume
measured over 20 seconds was 0.7l
Therefore the actual flow rate is:
(0.7 / 20) x 60 = 2.1 l/min
The error is therefore 2.1 – 2.0 = 0.1 l/min or 5%
If the display shows an uncorrected flow rate of 1.4 l/min then :
Corrected flow rate = Uncorrected flow rate + error = 1.4 + 5% =
1.47 l/min
7.
Calibrating Units for Different Liquids
The FLR 1000 Series will operate with most translucent liquids subject to
compatibility of the wetted parts. Best results are obtained with low
viscosity (less than 10 centistokes) liquids. For information regarding
higher viscosity liquids, contact the Omega Engineering Service
Department.
Units are calibrated with deionized water as the reference media. Using
other liquids will effect the calibration. The amount of calibration error will
depend on the characteristics of the liquid being flowed.
Summary of Contents for FLR 1000
Page 1: ...FLR 1000 1000BR 1000ST Series Flow Sensors Meters For Liquids...
Page 2: ......
Page 25: ...pg 25 of 33 FLR 1000 BR FLR 1000 ST For Liquids 1 4 Compression Fittings Shown...
Page 26: ...pg 26 of 33 FLR 1000 ST I For Liquids 1 4 Fittings Shown...
Page 27: ...pg 27 of 33 FLR 1000 D For Liquids 1 4 Acetal Fittings Shown...
Page 28: ...pg 28 of 33 FLR 1000 BR D FLR 1000 ST D For Liquids 1 4 Compression Fittings Shown...
Page 32: ...pg 32 of 33...
Page 33: ...M4574 0807 pg 33 of 33...