Hioki MR8740, Инструкция по эксплуатации

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17.6 Input Modules Specifications
359
Chapte
r 17 S
pecifications
16
17
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).
17.6.10 U8974 High Voltage Unit
Product warranty period
3
year
Guaranteed accuracy period 1 year
Number of input channels 2 channels
Measurement functions Instantaneous value, r.m.s. value (can be changed for each channel)
Measurement range 200 mV, 500 mV, 1 V, 2 V, 5 V, 10 V, 20 V, 50 V/div (mode DC)
500 mV, 1 V, 2 V, 5 V, 10 V, 20 V, 50 V/div (mode RMS)
Measurement accuracy ±0.25% f.s. (Filter 5 Hz On)
RMS measurement accuracy ±1.5% f.s. (DC, not lower than 30 Hz but lower than 1 kHz, sine waves, response time: slow)
±3% f.s. (not lower than 1 kHz but not higher than 10 kHz , sine waves)
Crest factor: 2 (sine waves, the peak voltage is up to 1000 V)
RMS measurement response
time Fast: 150 ms (rising from 0% f.s. to 90% f.s.)
Normal: 500 ms (rising from 0% f.s. to 90% f.s.)
Slow: 2.5 s (rising from 0% f.s. to 90% f.s.)
Temperature characteristic ±0.05% f.s./ ° C
Frequency characteristic DC to 100 kHz -3 dB
Noise 30 mV p-p (typ.), 50 mV p-p (max.) (highest sensitivity range, with input shorted)
Common mode rejection ratio 80 dB or more (50 Hz/60 Hz input short-circuited)
Low-pass filter OFF, 5±50%, 50±50%, 500±50%, 5 k±50%, 50 k±50% (Hz) -3 dB
Input type Unbalanced input (floating)
Input coupling DC/GND
Input resistance 4 M
Ω
±1%
Input capacitance 5 pF or less (at 100 kHz)
A/D resolution 16 bits
Maximum sampling rate 1 MS/s
Input terminals Banana jacks
Maximum input voltage 1000 V DC, 700 V AC
Maximum rated voltage to
earth 1000 V AC, DC measurement category III, 600 V AC, DC measurement category IV
(between individual input channels and enclosure as well as between individual input channels)
Anticipated transient overvoltage: 8000 V
Operating temperature and
humidity As per Memory HiCorder in which Model U8974 is installed
Operating environment As per Memory HiCorder in which Model U8974 is installed
Storage temperature and
humidity Temperature -20
°
C to 50
°
C (-4
°
F to 122
°
F)
Humidity not lower than -20
°
C but lower than 40
°
C 80% RH or less
(not lower than -4
°
F but lower than 104
°
F) (no condensation)
not lower than 40
°
C but lower than 45
°
C 60% RH or less
(not lower than 104
°
F but lower than 113
°
F) (no condensation)
not lower than 45
°
C but not higer than 50
°
C 50% RH or less
(not lower than 113
°
F but not higer than 122
°
F) (no condensation)
Dimensions Approx. 106W × 19.8H × 196.5D mm (4.17”W × 0.78”H × 7.74”D)
Mass Approx. 230 g (8.1 oz.)
Effect of radiated
radio-frequency electromag-
netic field ±5% f.s. (max.) at 3 V/m
Effect of conducted
radio-frequency electromag-
netic field ±5% f.s. (max.) at 3 V (500 mV/div range, with 1 V DC input)
Standards Safety EN61010
EMC
EN61326 Class A
Options Model L4940 Connection Cable Set (1.5 m)
Model L4935 Alligator Clip Set (mounted on the tips of L4940, CAT IV 600 V, CAT III 1000 V)
Model 9243 Grabber Clip (mounted on the tips of L4940, CAT III 1000 V)
Model L4936 Bus Bar Clip Set (mounted on the tips of L4940, CAT III 600 V)
Model L4937 Magnetic Adapter Set (mounted on the tips of L4940, CAT III 1000 V)
Model L4931 Extension Cable
Set
(to extend the length of L4940, 1.5 m)
Model L4932 Test Pin Set (mounted on the tips of L4940, CAT IV 600 V, CAT III 1000 V)
Model L4934* Small Alligator Clip Set (CAT III 300 V, CAT II 600 V)
* Model L4932 is necessary when using Model L4934.