FP7002/FP7002A Flow/Temperature Transmitter
3
6
Section 3 - Maintenance
Except for intermittent removal of the sensor from the flow line for
cleaning, there is no routine maintenance for the FP7002.
Section 4 - Calibration
4.1 Flow Calibration
Equipment Required:
12-18 Vdc Regulated Power Supply
Frequency Generator/Calibrator (such as OMEGA Model: CL123)
Multimeter (such as OMEGA Model: HHM290)
Small jeweler’s type common blade screwdriver
Calibration Procedure:
1. Unscrew and remove the protection head cover.
2. Make wiring connections to the transmitter as shown on page 7.
3. Apply power and allow the unit to warm up for 10 minutes.
4. Determine the maximum volumetric flow rate expected by the
application.
For our example we will use “GPM”. This will be “GPM Max”
5. From the table on page 8, determine the proper “K-Factor” for the
model fitting you will be using.
6. Determine your full scale calibration frequency using this formula.
This will be “F Max”.
F Max = K-Factor x GPM Max
60
Example:
Using a Model FP7015 Tee Fitting with a K-Factor of 29.46
and a GPM Max of 125.
29.46 x 125 GPM = 61.38 for your F Max
60
7. Set your frequency generator for an output of 0 Hz. Adjust the zero
potentiometer (P1) for a 4.00 mA output.
8. Set your frequency generator for the “F Max” you calculated above.
Adjust the span potentiometer (P2) for a 20.00 mA output.
9. Set your frequency generator for one half the “F Max” you calculated
above. You should have an output reading of 12.00 mA +/- 0.16 mA.
If not, repeat steps 7 & 8.
10. Re-install 10 k resistor across terminals 5 and 6 and re-install white
wire to terminal 5.
11. Calibration complete.
