191
General Specications
DC resistance measurement
Function
Measures DC resistance (when the measurement parameter is set to Rdc).
The measurement conditions are set separately from those for AC measurement.
(Measurement conditions: Measurement range, measurement speed, average,
judgment synchronization setting, DC delay, adjustment delay, line frequency)
Measurement signal level Fixed at 1 V
Generating accuracy ±10% of setting ±20 mV
DC bias function
Function Allows superposition of a DC voltage for measurement.
Operation mode OFF/ON
Generating range DC voltage : 0 V to 2.50 V (10 mV resolution)
When Low Z high accuracy mode: 0 V to 1 V (10 mV resolution)
Generating accuracy ±10% of setting ± (V
AC
×0.01+30 mV)
V
AC
refers to the AC signal voltage setting (V).
Default setting OFF
Residual charge protection function
Function Protects the instrument from discharge voltage in the event that it is con-
nected to a charged capacitor.
• Discharge voltage reference value:
At 400 V DC or less, 5 J or less; at 1,000 V DC or less, 0.5 J or less
• The energy W [J] stored in capacitance C [F] at voltage V [V] can be deter-
mined using the following equation:
• See "Appx. 6 The Residual Charge Protection Function" (p. Appx.9)
Terminal structure
4-terminal pair structure
Backup battery life
Approx. 10 years (at 25°C)
Used to back up the clock and settings (lithium battery).
Accuracy
Basic accuracy Z: ±0.05% rdg.,
θ
: ±0.03° (representative value)
Guaranteed accuracy period
1 year
Warm-up time 60 minutes
Temperature and humidity
for guaranteed accuracy
0°C to 40°C (32°F to 104°F), 80% RH or less (no condensation)
Measurement time
Approx. 1 ms (measurement frequency: 1 MHz; measurement speed: FAST; no screen display)
Measurement speed
FAST, MED, SLOW, SLOW2 (Default setting: MED)
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Specications