111
Magtrol Model DSP7000 Dynamometer Controller
Chapter 9 – Calibration
MAINTENANCE
9.3.4 CaliBraTion frequenCy
NOTE: On units with Firmware Revision R1 and later speed calibration
can be performed for greater accuracy
NOTE: A high-precision square wave signal generator or frequency counter
is required to calibrate frequency gain.
1. Frequency gain on TSC1 and TSC2.
 • TSC1speedfrompin10oftheTSC1connector
 • TSC2speedfrompin10oftheTSC2connector
2. Send the command CALS# to the unit via USB/GPIB/RS232.
3. The response will be FRQ#=XXXXXX.XX.
4. Apply a square wave of 50 kHz to 99 kHz frequency to the input (this can vary from 50 kHz
to 99 kHz but must be measured accurately).
5. Send the command FRQ#=XXXXXX.XX (where XXXXXX.XX is your meter reading).
6. The response will be CAL COMPLETE FRQ#.
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