IDEAL INDUSTRIES 61-340 Technical Manual

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IDEAL INDUSTRIES 61-340 Technical Manual Manual pdf 22 page image

Page 20Testing the Frequency Function (for 61-340 / 61-342)To verify the accuracy of the meter’s frequency function, do the following:1. Connect the calibrator to the and COM inputs on the meter.2. Note: The accuracy of the calibrator’s frequency function must be appropriate for the specifiedaccuracy of the meter.3. Set the rotary switch to .4. Set the calibrator or function generator for the square wave voltage and frequency for steps 1-6 ofTable 7a.5. Compare the reading on the meter display with the display reading shown in Table 7a.6. If the display reading falls outside of the range shown in Table 7a, the meter does not meetspecification.Table 7a Frequency Test:Step Range Source Level Reading1 100Hz 9.0Hz 3V rms 8.987 to 9.0132 100Hz 90Hz 3V rms 89.87 to 90.133 1kHz 900Hz 3V rms 898.7 to 901.34 10kHz 9kHz 3V rms 8.987 to 9.0135 100kHz 90kHz 3V rms 89.87 to 90.136 1MHz 900kHZ 3V rms 898.7to 901.3Testing the Duty Cycle Function (for 61-340 / 61-342)To verify the accuracy of the meter’s frequency function, do the following:1. Connect the calibrator to the and COM inputs on the meter.2. Note: The accuracy of the calibrator’s frequency function must be appropriate for the specifiedaccuracy of the meter.3. Set the rotary switch to .a. Press the Hz/DUTY button to select the DUTY CYCLE function4. Set the calibrator or function generator for the square wave voltage and frequency as Table 7b.5. Compare the reading on the meter display with the display reading shown in Table 7b.6. If the display reading falls outside of the range shown in Table 7b, the meter does not meetspecification.Table 7b Duty Cycle Test:Step Range Source Level Reading1 1kHz 1kHz 3V rms 48.3% to 51.7%Form Number 2TM61340-2 Rev November 2007

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