MR8740T_Quick guide_eng_20191016H.pdf - 第125页
11 9 Specications of the Options Storage temperature and humidity −20°C to 50°C (−4°F to 122°F) For −20°C or higher but lower than 40°C (−4°F or higher but lower than 104°F), 80% RH or less (no condensation) For 40°C or…
118
Specications of the Options
Model U8974 High Voltage Unit
Conditions of guaranteed accuracy
Specied under the following conditions: installed in a Memory HiCorder and operated at 23°C ±5°C (73°F ±9°F) in
the humidity range of 20% to 80% RH after a half-hour (at least) warm-up and execution of zero-adjustment.
Product warranty
period
3 years
Guaranteed accuracy
period
1 year
Number of input
channels
2 channels
Measurement
functions
Instantaneous value, RMS value (Each channel can have a different setting.)
Measurement range 4, 10, 20, 40, 100, 200, 400, 1000 V f.s. (DC mode)
10, 20, 40, 100, 200, 400, 1000 V f.s. (RMS mode)
Measurement
accuracy
±0.25% f.s. (with the lter set at 5 Hz)
RMS measurement
accuracy
±1.5% f.s. (DC, 30 Hz or higher but lower than 1 kHz, sine wave, response time setting:
Slow)
±3% f.s. (1 kHz to 10 kHz, sine wave)
Crest factor: 2 (sine wave, a peak voltage of up to 1000 V)
RMS measurement
response time
Fast: 150 ms (rising from 0% of f.s. to 90% of f.s.)
Normal: 500 ms (rising from 0% of f.s. to 90% of f.s.)
Slow: 2.5 s (rising from 0% of f.s. to 90% of f.s.)
Temperature
characteristics
±0.05% f.s./°C
Frequency
characteristics
DC to 100 kHz, −3 dB
Noise 30 mV p-p (typ.), 50 mV p-p (max.); with the highest sensitivity range and the terminals of
each input connector connected with each other
Common mode
rejection ratio
80 dB or more (at 50 Hz / 60 Hz, with input terminals connected with each other)
Low-pass lter Off, 5 ±50%, 50 ±50%, 500 ±50%, 5 k ±50%, 50 k ±50% (Hz); −3 dB
Input type Balanced input (oating)
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 each input channel and the enclosure, between any two of input channels)
Anticipated transient overvoltage: 8000 V
Operating
temperature and
humidity
Consistent with the specications of Memory HiCorder in which Model U8974 is installed.
Operating
environment
Consistent with the specications of Memory HiCorder in which Model U8974 is installed.
119
Specications of the Options
Storage temperature
and humidity
−20°C to 50°C (−4°F to 122°F)
For −20°C or higher but lower than 40°C (−4°F or higher but lower than 104°F), 80% RH
or less (no condensation)
For 40°C or higher but lower than 45°C (104°F or higher but lower than 113°F), 60% RH or
less (no condensation)
For 45°C to 50°C (113°F to 122°F), 50% RH or less (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
electromagnetic eld
±5% f.s. (max.) at 3 V/m
Effect of conducted
radio-frequency
electromagnetic eld
±5% f.s. (max.) at 3 V (in the 10 V f.s. range, with 1 V DC inputted)
Standards Safety: EN61010
EMC: EN61326 Class A
Options Model L4940 Connection Cable Set (1.5 m)
Model L4935 Alligator Clip Set (attached to the tips of Model L4940, CAT IV 600 V, CAT III
1000 V)
Model 9243 Grabber Clip (attached to the tips of Model L4940, CAT III 1000 V)
Model L4936 Bus Bar Clip Set (attached to the tips of Model L4940, CAT III 600 V)
Model L4937 Magnetic Adapter Set (attached to the tips of Model L4940, CAT III 1000 V)
Model L4931 Extension Cable Set (to extend the length of Model L4940, 1.5 m)
Model L4932 Test Pin Set (attached to the tips of Model 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 required when Model L4934 is used.
5
Specications
120
Specications of the Options
Model U8975 4ch Analog Unit
Conditions of guaranteed accuracy
Specied under the following conditions: installed in a Memory HiCorder and operated at 23°C ±5°C (73°F ±9°F) and
80% RH or less after a half-hour (at least) warm-up and execution of zero-adjustment.
Operating
environment
Indoors, Pollution Degree 2, Operating altitude: up to 2000 m (6562 ft.)
Operating
temperature and
humidity
0°C to 40°C (32°F to 104°F), 80% RH or less (no condensation)
Storage temperature
and humidity
−10°C to 50°C (14°F to 122°F)
For −10°C or higher but lower than 40°C (14°F or higher but lower than 104°F), 80% RH
or less (no condensation)
For 40°C or higher but lower than 45°C (104°F or higher but lower than 113°F), 60% RH or
less (no condensation)
For 45°C to 50°C (113°F to 122°F), 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
Measurement range 4, 10, 20, 40, 100, 200 V f.s.
Maximum input
voltage
200 V DC
Maximum rated
voltage to earth
300 V AC, DC, Measurement category II (between each input channel and the enclosure,
between any two of input channels)
Anticipated transient overvoltage: 2500 V
Measurement
terminal
Insulated BNC terminal
Number of channels 4 channels
Frequency
characteristics
DC to 2 MHz, −3 dB
Noise 5 mV p-p (typ., 10 mV p-p (max.) (with the highest sensitivity range with input terminals
connected with each other)
Input type Unbalanced input (oating)
Input coupling DC/GND
Input resistance 1 M
Ω
±1%
Input capacitance 30 pF ±10 pF (at 100 kHz)
A/D resolution 16 bits (± f.s. = ±32000 data points)
Maximum sampling
rate
5 MS/s
Guaranteed accuracy
period
1 year
Guaranteed
accuracy period after
adjustment made by
Hioki
1 year
Measurement
accuracy
±0.1% f.s. (with the lter set at 5 Hz)