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Calibration Procedure - FLSC-45
1. Remove bottom cover of FLSC-45 to access calibration compartment (see Figure 5B).
2. Connect the power supply, milliamp meter and the frequency generator to signal
conditioner as shown in Figure 5A for 4-20 mA or 1-5 Vdc calibration.
3. Determine the maximum volumetric flow rate in GPM, expected by the application.
Name this “GPM (Max)”.
4. From the calibration constant (or K-Factor) listed on the data sheet for the flow sensor,
obtain the frequency corresponding to GPM (Max) using Equation #1 and designate
this frequency F (Max).
Equation #1 F (Max) = K-Factor x GPM (Max).
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Figure 5A. FLSC-45 Calibration Setup
FLSC-45/45B Paddlewheel Signal Conditioner
Figure 5B. New FLSC-45 Calibration Setup
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POWER
SUPPLY
24 Vdc
POWER
SUPPLY
24 Vdc
+
+
+
+
–
–
–
–
4.00
MILLIAMP METER
MA
1.00
VOLT METER
V
SINUSOIDAL
FUNCTION
GENERATOR
SINUSOIDAL
FUNCTION
GENERATOR
DIP SWITCH SETTINGS
65-120 Hz
121-240 Hz
241-480 Hz
481-960 Hz
961-1920 Hz
1921-3840 Hz
3840-7680 Hz
DIP SWITCH SETTINGS
65-120 Hz
121-240 Hz
241-480 Hz
481-960 Hz
961-1920 Hz
1921-3840 Hz
3840-7680 Hz
1
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78
12
34
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