User Manual

30.0

Fig. 17 Since this application uses a 30:5 ratio cur-

rent transformer the AC-24 controller must be ad-

justed to read 30.0 full scale. Press and hold the

Coarse Display Range and Down arrow until 30.0 is

displayed. For finer adjustment use the Fine Dis-

play Range.

Fig. 18 Start the wheel motor and

place a clamp-on type ammeter on

the motor leads to confirm calibration

of both the panel ammeter and the

AC-24 controller display.

Note: The AC-24 controller zero and

span have been factory set. Minor

adjustments may be needed. Press

the Span button along with up/down

arrows to change value. Release the

Span Button to see new amperage

readings. Make the controller reading

match the clamp-on ammeter read-

ing. Even though there is no shot

flow, ammeter readings will show the

no load or no flow rate values. Note

that the clamp-on ammeter and the

AC-24 Controller digital display show

the no load motor amperage to be

about 8.8 amps, while the panel me-

ter shows over 9 amps.

Fig. 17

Fig. 18