Hioki 3290-10, Instruction Manual

Page: 114 / 152

108
6.1 Measurement Specifications
6.1.1 Current Measurement
Current Ranges The meter automatically recognizes the sensor capabilities at the
time of connection (maximum continuous measuring range and max-
imum peak current value for the particular sensor).
Range selection methods consist of auto ranging, and L and H man-
ual ranges.
Measurement
Sampling
• DC Mode
10 samples/second (alternating polarities five times per second)
• AC and AC+DC Modes
10 samples/second
Measurement
Response Time In AC and AC+DC modes, when the measured value changes from
0%
→
90% or from 100%
→
10% of the range, some time is required
for the analog output value to stabilize.
FAST (0.2 s)
: Specifications satisfied at 45 Hz and above
NORMAL (0.8 s) : Specifications satisfied at 10 Hz and above
SLOW (8.0 s) : Specifications satisfied at 1 Hz and above
Function • Peak Measurement
DC Mode: Both positive and negative polarities displayed
AC and AC+DC Modes: Absolute value display
• Maximum/Minimum Value Measurement
(AC and AC+DC modes only)
Maximum and minimum current measurement values are retained
• Outputs
OUT1: Selectable MON or REC output (only MON in DC mode)
Output Rate: 2 V/range
Accuracy • Auto zero adjustment must be performed before measuring in DC
and AC+DC modes
• Measurement response times are FAST, NORMAL and SLOW
• When the 550-Hz LPF is enabled, specifications are satisfied at 60
Hz and below
❖
See "DIsplay Accuracy" (page 109)
❖
See "REC Output Accuracy (2 V/range)" (page 109)
❖
See "MON Output Accuracy (2 V/range)" (page 109)
❖
See "Peak Display Accuracy (Peak hold function)" (page 109)
Connected
Sensor
Standard Measurement Peak Measurement
Range Resolution
Maximum
Displayed
Range Resolution
Maximum
Displayed
Model 9691
20 A 0.01 A 25.00 A 20 A 0.1 A 50.0 A
200 A 0.1 A 105.0 A 200 A 0.1 A 150.0 A
Model 9692
20 A 0.01 A 25.00 A 20 A 0.1 A 50.0 A
200 A 0.1 A 210.0 A 200 A 0.1 A 300.0 A
Model 9693
200 A 0.1 A 250.0 A 200 A 1 A 500 A
2000 A 1 A 2100 A 2000 A 1 A 3000 A