MR8740T_Quick guide_eng_20191016H.pdf - 第127页
121 Specications of the Options T emperature characteristics ±0.02% f.s./°C Effect of radiated radio-frequency electromagnetic eld ±5% f.s. (max.) at 3 V/m (with the lter set at 5 Hz) Effect of conducted radio-frequen…
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)
121
Specications of the Options
Temperature
characteristics
±0.02% f.s./°C
Effect of radiated
radio-frequency
electromagnetic eld
±5% f.s. (max.) at 3 V/m (with the lter set at 5 Hz)
Effect of conducted
radio-frequency
electromagnetic eld
±5% f.s. (max.) at 3 V (in the 10 V f.s. range, with the lter set at 5 Hz and 1 V DC
inputted)
Common-mode
rejection ratio
80 dB or more (at 50 Hz / 60 Hz, a signal source resistance of 100
Ω
)
Low-pass lter Off, 5 ±50%, 500 ±50%, 5 k ±50%, 200 k ±50% (Hz); −3 dB
5
Specications
122
Specications of the Options
Model U8977 3CH Current Unit (The rmware of ver. 2.00 or later is
required to install the module.)
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
Options Model CT9900 Conversion Cable (PL23 receptacle–ME15W plug)
Model CT9920 Conversion Cable (PL14 receptacle–ME15W plug)
Number of input
channels
3 channels