Hioki CM7290, Instruction Manual

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46
Input and Output Specifications, and Measurement Specifications
3. DC+AC display, coupling method: DC coupling
• DC+AC rms value (Measured value/MAX/MIN/AVG rms)
Range
Guaranteed-accuracy
frequency range
Measurement accuracy
(when the filter is set to ON, add ±0.5% rdg.)
×1, ×10
(for 300 dgt. or
greater)
DC ±1.5% rdg.±15 dgt.
3 Hz ≤ f < 10 Hz ±1.2% rdg.±12 dgt.
10 Hz ≤ f < 45 Hz ±0.8% rdg.±12 dgt.
45 Hz ≤ f ≤ 66 Hz ±0.3% rdg.±12 dgt.
66 Hz < f ≤ 1 kHz ±1.0% rdg.±12 dgt.
• DC+AC peak (PEAK MAX/PEAK MIN Zero-to-Peak)
Range
Guaranteed-accuracy
frequency range
Measurement accuracy
(when the filter is set to ON, add ±0.5% rdg.)
×1, ×10
DC ±2.5% rdg.±7 dgt.
3 Hz ≤ f < 10 Hz ±2.5% rdg.±7 dgt.
10 Hz ≤ f ≤ 66 Hz ±2.5% rdg.±7 dgt.
66 Hz < f ≤ 1 kHz Not specified
4. Frequency display (Measured value/MAX/MIN/AVG), coupling method: AC coupling
In AC mode: simultaneous display (Factory setting is subdisplay. Can be switched to main
display with
[AC/DC/Hz]
key.)
With the subdisplay, the frequency range is set automatically. With the main display, the
frequency range can be switched using
[RANGE]
key.
Minimum sensitivity: 300 dgt. or more
When the frequency or the AC value is out of the measurement range, "----Hz" is displayed.
Frequency range
(guaranteed-accuracy range)
Resolution Measurement accuracy
9.999 Hz (1.000 Hz to 9.999 Hz)
*1
0.001 Hz ±0.2% rdg.±0.002 Hz
99.99 Hz (9.00 Hz to 99.99 Hz) 0.01 Hz ±0.1% rdg.±0.01 Hz
999.9 Hz (90.0 Hz to 999.9 Hz) 0.1 Hz ±0.1% rdg.±0.1 Hz
*1: The display range starts from 0.950 Hz.