Hioki MR8827, Instruction Manual

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363
Module Specifications
18.6.3 Model 8968 High Resolution Unit
Accuracy figures assume installation in a Memory HiCorder and operation after a 30-minute warm-up
period at 23°C ±5°C (73°F ±9°F) and 80% RH (no condensation).
Product warranty
period
3 years
Guaranteed accuracy
period
1 year
Number of input
channels
2 channels
Measurement range 5, 10, 20, 50, 100, 200, 500 mV, 1, 2, 5, 10, 20 V/div
Measurement
accuracy
±0.3% f.s. (Filter 5 Hz On, after zero adjustment)
Temperature
characteristic
±0.045% f.s./°C
Frequency
characteristic
DC Coupling: DC to 100 kHz −3 dB
AC Coupling: 7 Hz to 100 kHz −3 dB (low cut-off frequency: 7 Hz±50%)
Noise 500 μV p-p (typ.), 1 mV p-p (max.) (highest sensitivity range, with input shorted)
Common mode
rejection ratio
80 dB or more (at 50 Hz/60 Hz and with signal source resistance 100
Ω
or less)
Low-pass filter
Off, 5±50%, 50±50%, 500±50%, 5 k±50%, 50 k±50% (Hz) −3 dB
Anti-aliasing filters Cutoff frequency (fc) 20, 40, 80, 200, 400, 800, 2 k, 4 k, 8 k, 20 k, 40 k (Hz)
(Automatic setting when the anti-aliasing filter is ON)
Attenuation property: −66 dB or higher at 1.5 fc
Input type Unbalanced input (floating)
Input coupling AC/DC/GND
Input resistance
1 M
Ω
±1%
Input capacitance 30 pF±10 pF (at 100 kHz)
A/D resolution 16 bits
Maximum sampling
rate
1 MS/s
Input terminals Insulated BNC terminal
Maximum input
voltage
400 V DC
Maximum rated
voltage to earth
300 V AC, DC (between individual input channels and enclosure as well as between
individual input channels)
Measurement category II (anticipated transient overvoltage: 2500 V)
Operating
temperature and
humidity
As per Memory HiCorder in which Model 8968 is installed
Operating
environment
As per Memory HiCorder in which Model 8968 is installed
Storage temperature
and humidity
-10°C to 50°C (14°F to 122°F), 80% RH or less (no condensation)
Dimensions Approx. 106W × 19.8H × 196.5D mm (4.17″W × 0.78″H × 7.74″D)
Mass Approx. 250 g (8.8 oz.)
Effect of radiated
radio-frequency
electromagnetic field
±15% f.s. (max.) at 3 V/m
Specifications
18