Fluke 117 Fluke 114,115,117 Manual - Page 16

114, 115, and 117 Users Manual Measuring Frequency (115 & 117 only) XWWarning To avoid electrical shock, disregard the bar graph for frequencies >1 kHz. If the frequency of the measured signal is >1 kHz, the bar graph and Z are unspecified. AC Voltage Frequency AC Current Frequency VoltAlert Hz Press g to turn the frequency measurement function on and off. Frequency works with ac functions only. In frequency, the bar graph and range annunciator indicate the ac voltage or current present. Select progressively lower ranges using manual ranging for a stable reading. Detecting AC Voltage Presence (117 only) VoltAlert Hot Neutral VoltAlert RANGE Lo edy09f.eps The Meter measures the frequency of a signal by counting the number of times the signal crosses a trigger level each second. The trigger level is 0 V, 0 A for all ranges. 14 VoltAlert edy13f.eps