Hioki MR8740, Instruction Manual

Page: 363 / 424

17.6 Input Modules Specifications
351
Chapte
r 17 S
pecifications
16
17
17.6.3 8968 High Resolution Unit
Temperature and humidity
range for guaranteed accuracy 23 ± 5°C (73.4 ± 9.0°F), 20 to 80% RH (when zero adjustment is executed 30 minutes after power
on)
Product warranty period
3
year
Period of guaranteed accuracy 1 year
No. of input channels 2 channels
Measurement ranges 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 kHHz -3 dB
AC coupling: 7 Hz to 100 kHz -3 dB (low-cut frequency: 7 Hz±50%)
Noise 500 μ Vp-p (typ), 1 mVp-p (max) (sensitivity range, with input shorted)
Common mode rejection ratio 80 dB minimum (at 50/60 Hz and with signal source resistance 100 Ω maximum)
Low-pass filter Off, 5±50%, 50±50%, 500±50%, 5 k±50%, 50k±50%(Hz)-3 dB
Anti-aliasing filter Cutoff frequency (fc) 20, 40, 80, 200, 400, 800, 2k, 4k, 8k, 20k, 40k (Hz)
(Automatic setting when the anti-aliasing filter is ON)
Attenuation property at 1.5 fc, -66 dB or higher
Input type Unbalanced (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 bit
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 input channels and chassis, and between input channels)
Measurement category II (anticipated transient overvoltage 2500 V)
Operating temperature and
humidity Same as the host Memory HiCorder
Operating environment Same as the host Memory HiCorder
Storage temperature and hu-
midity Temperature -10°C to 50°C (14°F to 122°F) Humidity 80% RH or less (non-condensating)
Dimensions Approx. 106 mmW × 19.8 mmH × 207.5 mmD (4.17"W × 0.78"H × 8.17"D)
Mass Approx. 250 g (8.8 oz)
Effect of radiated radio-fre-
quency electromagnetic field ±15% f.s. (max) at 3 V/m
Effect of conducted radio- fre-
quency electromagnetic field ±20% f.s. (max) at 3 V (at 100 mV/div range, 1 VDC input)
Applicable standards Safety EN61010
EMC EN61326 Class A