MR8740、MR8741_user_manual_eng_20191016H.pdf - 第375页

17.6 Specifications of Modules 363 Chapter 17 S pecifications 16 17 General Specifications S pecifications of input, output, and measurement Common specifications Voltage input Charge input 17.6.1 1 U8979 Charge Unit Ope…

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17.6 Specifications of Modules
362
Accuracy figures assume installation in a Memory HiCorder and operation after a 30-minute warm-up period at 23C±5C
(73F±9F) and 80% RH (no condensation).
17.6.10 U8974 High Voltage Unit
Product warranty period 3 years
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±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 -20C to 50C (-4F to 122F)
Humidity not lower than -20C but lower than 40C 80% RH or less
(not lower than -4F but lower than 104F) (no condensation)
not lower than 40C but lower than 45C 60% RH or less
(not lower than 104F but lower than 113F) (no condensation)
not lower than 45C but not higer than 50C 50% RH or less
(not lower than 113F but not higer than 122F) (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 CableSet (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.
17.6 Specifications of Modules
363
Chapter 17 Specifications
16
17
General Specifications
Specifications of input, output, and measurement
Common specifications
Voltage input
Charge input
17.6.11 U8979 Charge Unit
Operating environment Indoors, Pollution Degree 2, Operating altitude: up to 2000 m (6562 ft.)
Operating temperature and
humidity
0°C to 40°C (32F to 104F), 80% RH or less (no condensation)
Storage temperature and
humidity
-10°C to 50°C (14F to 122F)
For -10°C or higher but lower than 40°C (14F or higher but lower than 104F), 80% RH
or less (no condensation)
For 40°C or higher but lower than 45°C (104F or higher but lower than 113F), 60% RH or
less (no condensation)
For 45°C to 50°C (113F to 122F), 50% RH or less (no condensation)
Standards Safety: EN61010
EMC: EN61326 Class A
Dimensions Approx. 106W × 19.8H × 196.5D mm (4.17”W × 0.78”H × 7.74”D)
Mass Approx. 250 g (8.8 oz.)
Product warranty period 3 years
Guaranteed accuracy period 1 year
Number of output channels 2 channels
Measurement mode Charge, pre-amplifier, voltage (selectable for each channel)
Input type Unbalanced input (floating)
In each channel, the voltage input terminal has the same-potential ground as the charge input ter-
minal.
Common-mode rejection ratio 80 dB or more (at 50 Hz / 60 Hz, a signal source resistance of 100 )
Anti-aliasing filters Cutoff frequency (fc): 20, 40, 80, 200, 400, 800, 2 k, 4 k, 8 k, 20 k, 40 k (Hz)
Switchable between on and off; the instrument automatically chooses a cutoff frequency along with
the sampling rate.
Attenuation property: -66 dB or higher at a cutoff frequency of 1.5 fc
Maximum sampling rate 200 kS/s
A/D resolution 16 bits (± f.s. = ±25,000 data points)
Maximum rated voltage to
earth
30 V AC, 60 V DC
(between each input channel and the enclosure, between any two of input channels)
Anticipated transient overvoltage: 330 V
Measurement range 10, 20, 40, 100, 200, 400 mV f.s., 1, 2, 4, 10, 20, 40 V f.s.
Maximum input voltage 40 V DC
Frequency characteristics DC to 50 kHz -3 dB (DC-coupled)
1 Hz to 50 kHz -3 dB (AC-coupled, lower cutoff frequency: 1 Hz ±50%)
Noise 80 V p-p (typ.), 120 V p-p (max.), with the highest sensitivity range and the terminals of each
input connector connected with each other
Input resistance 1 M±1%
Input capacitance 200 pF or less (at 100 kHz)
Input coupling AC/DC/GND
Input terminals Metallic BNC terminal
Supported detector Charge-output acceleration detector
Measurement sensitivity 0.1 pC/(m/s
2
) to 10 pC/(m/s
2
)
17.6 Specifications of Modules
364
Input from acceleration sensor with the built-in pre-amplifier
Specifications for accuracy
Measurement range 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k, 20 k, 40 k, 100 k, 200 k m/s
2
f.s.
Measurement sensitivity: 0.1 pC/(m/s
2
) to 0.25 pC/(m/s
2
)
20, 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k, 20 k, 40 k, 100 k m/s
2
f.s.
Measurement sensitivity: 0.251 pC/(m/s
2
) to 0.5 pC/(m/s
2
)
10, 20, 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k, 20 k, 40 k m/s
2
f.s.
Measurement sensitivity: 0.501 pC/(m/s
2
) to 1.0 pC/(m/s
2
)
4, 10, 20, 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k, 20 k m/s
2
f.s.
Measurement sensitivity: 1.001 pC/(m/s
2
) to 2.5 pC/(m/s
2
)
2, 4, 10, 20, 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k m/s
2
f.s.
Measurement sensitivity: 2.501 pC/(m/s
2
) to 5.0 pC/(m/s
2
)
1, 2, 4, 10, 20, 40, 100, 200, 400, 1 k, 2 k, 4 k m/s
2
f.s.
Measurement sensitivity: 5.001 pC/(m/s
2
) to 10.0 pC/(m/s
2
)
Frequency characteristics 1.5 Hz to 50 kHz -3 dB
Maximum input charge ±500 pC (when one of the higher six ranges is chosen)
±50,000 pC (when one of the lower six ranges is chosen)
Input coupling AC/GND
Input terminals Miniature connector (#10-32UNF)
Supported detector Acceleration detector with built-in pre-amplifier
Measurement sensitivity 0.1 mV/(m/s
2
) to 10 mV/(m/s
2
)
Measurement range 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k, 20 k, 40 k, 100 k, 200 k m/s
2
f.s.
Measurement sensitivity: 0.1 mV/(m/s
2
) to 0.25 mV/(m/s
2
)
20, 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k, 20 k, 40 k, 100 k m/s
2
f.s.
Measurement sensitivity: 0.251 mV/(m/s
2
) to 0.5 mV/(m/s
2
)
10, 20, 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k, 20 k, 40 k m/s
2
f.s.
Measurement sensitivity: 0.501 mV/(m/s
2
) to 1.0 mV/(m/s
2
)
4, 10, 20, 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k, 20 k m/s
2
f.s.
Measurement sensitivity: 1.001 mV/(m/s
2
) to 2.5 mV/(m/s
2
)
2, 4, 10, 20, 40, 100, 200, 400, 1 k, 2 k, 4 k, 10 k m/s
2
f.s.
Measurement sensitivity: 2.501 mV/(m/s
2
) to 5.0 mV/(m/s
2
)
1, 2, 4, 10, 20, 40, 100, 200, 400, 1 k, 2 k, 4 k m/s
2
f.s.
Measurement sensitivity: 5.001 mV/(m/s
2
) to 10.0 mV/(m/s
2
)
Power supply for detector 1 Hz to 50 kHz -3 dB
Maximum input charge 3.5 mA ±20%, 22 V ±5%
Input coupling AC/GND
Input terminals Metallic BNC terminal
Conditions of
guaranteed accuracy
Guaranteed accuracy period: 1 year
Guaranteed accuracy period after adjustment made by Hioki: 1 year
Temperature and humidity for guaranteed accuracy: 23°C ±5°C (73F ±9F), 80% RH or less
Warm-up time: 30 minutes or more
Specified after execution of zero-adjustment
Accuracy of voltage
measurement
±0.5% f.s. (with the filter set at 5 Hz)
Temperature characteristic of
voltage measurement
±0.05% f.s./°C
Accuracy of amplitude with
charge inputted
±2% f.s.
Temperature characteristic
with charge inputted
±0.2% f.s./°C
Accuracy of amplitude
inputted from acceleration
detector with built-in
pre-amplifier
±2% f.s.
Temperature characteristics
of input from acceleration
sensor with the built-in
preamplifier
±0.2% f.s./°C
Effect of radiated
radio-frequency
electromagnetic field
±10% f.s. (max.) at 3 V/m (with the filter set at 5 Hz)
Effect of conducted
radio-frequency
electromagnetic field
±10% f.s. (max.) at 3 V (with the filter set at 5 Hz)