![background image](http://html1.mh-extra.com/html/omega/flsc-45/flsc-45_user-manual_737631008.webp)
FLSC-45/45B Paddlewheel Signal Conditioner
6
5. Set the frequency generator for an output of 0 Hz. Adjust the zero potentiometer (Pl)
for an output of 4.00 mA or 1.00 Vdc.
6. Set the coarse range adjustment by selecting a switch position on the DIP switch inside
the calibration compartment. Set the correct switch position so that the F (Max) falls
within the range you select. Refer to Figure 5A for ranges and DIP switch location.
7. Set the frequency generator an output equal to F (Max) and adjust the span
potentiometer (P2) for an output of 20.00 mA or 5.00 Vdc.
8. Reinstall top cover of FLSC-45. Calibration is complete.
Calibration - FLSC-45B
Equipment Required
1. 12-32 Vdc power supply (24 Vdc nominal)
2. Sinusoidal Frequency Generator
3. Milliamp/Voltmeter
4. Small common screwdriver (jeweler’s)
5. Small Phillips screwdriver
Calibration Procedure - FLSC-45B
1. Remove top cover of FLSC-45B to access calibration compartment (see Figure 5C).
2. Connect the power supply, milliamp meter and the frequency generator to signal
conditioner as shown in Figure 5B 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,
5. Set the frequency generator for an output of 0 Hz. Adjust the zero potentiometer (Pl)
for an output of 4.00 mA or 1.00 Vdc.
6. Set the coarse range adjustment by selecting a switch position on the DIP switch inside
the calibration compartment. Set the correct switch position so that the F (Max) falls
within the range you select. Refer to Figure 5B for ranges and DIP switch location.
7. Set the frequency generator an output equal to F (Max) and adjust the span
potentiometer (P2) for an output of 20.00 mA or 5.00 Vdc.
8. Reinstall top cover of FLSC-45B. Calibration is complete
P3
P1
7
1
3
4
5
6
2
P2
4.00
MA
MILLIAMP METER
POWER
SUPPLY
24 Vdc
FUNCTION
GENERATOR
DIP SWITCH
SETTINGS
COURSE SPAN
DIP SWITCH
THRESHOLD ADJUSTMENT
(SENS ADJUST)
ZERO
SPAN
3841-7680 Hz
1921-3840 Hz
961-1920 Hz
481-960 Hz
241-480 Hz
121-240 Hz
65-120 Hz
1
2
3
4
5
6
–
–
+
+
Figure 5C. FLSC-45B Calibration Setup