17.6 Input Modules Specifications
310
17.6.7 8972 DC/RMS Unit
Temperature and humidity range for
guaranteed accuracy
23 ± 5°C (73 ± 9F°), 20 to 80% RH (when zero adjustment is executed 30 minutes after power on)
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 ±0.5% f.s. (Filter 5 Hz On)
RMS accuracy ±1% f.s. (DC, 30 Hz to 1 kHz),
±3% f.s. (1 kHz to 100 kHz) (Sine wave input, response time: SLOW)
Response time Slow 5 s (during rise 0 to 90% f.s.), Mid 800 ms (during rise 0 to90% f.s.),
Fast 100 ms (during rise 0 to 90% f.s.)
Crest factor 2
Temperature characteristic ±0.045% f.s./°C
Frequency characteristic DC coupling: DC to 400 kHz ±3 dB
AC coupling: 7 Hz to 400 kHz ±3 dB (low cut-off frequency: 7 Hz±50%)
Noise 500 μVp-p (typ), 750 μVp-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%, 5k±50%, 100k±50%(Hz)-3 dB
Input type Unbalanced (floating)
Input coupling AC/DC/GND
Input resistance 1 MΩ±1%
Input capacitance 30 pF±10 pF (at 100 kHz)
A/D resolution 12 bit L
Maximum sampling rate 1 MS/s
Input terminals Insulated BNC terminal
Maximum input voltage 400 VDC
Isolation resistance and With-
stand voltage
2.704 kVAC for 15 seconds, (between input module and chassis, and between modules), At least
100 MΩ at 500 VDC
Maximum rated voltage to earth 300 VAC/DC (between input channels and chassis, and between input channels)
Measurement category II (anticipated transient overvoltage 2500 V)
Operating temperature and hu-
midity
Same as the host Memory HiCorder
Operating environment Same as the host Memory HiCorder
Storage temperature and humid-
ity
Temperature -10 to 50°C, 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 ratio-frequency
electromagnetic field
±15% f.s. (max) at 3 V/m
Effect of conducted radio- frequency
electromagnetic field
±20% f.s. (max) at 3 V (100 mV/div range, with1 VDC input)
Applicable standards Safety EN61010
EMC EN61326 Class A
17.6.8 8973 Logic Unit
Period of guaranteed accuracy 1 year
No. of input channels 4 Probes (16channels)
Input terminals Mini DIN
Applicable probes 9320-01 Logic Probe, MR9321-01 Logic Probe, 9327 Logic Probe
Operating temperature and hu-
midity
Same as the host Memory HiCorder
Operating environment Same as the host Memory HiCorder
Storage temperature and humid-
ity
Temperature -10 to 50°C Humidity 80% RH or less (non-condensating)
Dimensions Approx. 106 mmW × 19.8 mmH × 204.5 mmD (4.17"W × 0.78"H × 8.05"D)
Mass Approx. 190 g (6.7 oz)
Applicable standards Safety EN61010
EMC EN61326 Class A
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