MR8740T_Quick guide_eng_20191016H.pdf - 第129页
123 Specications of the Options Supported current sensors • Directly connectable current sensors Model 9272-05 Clamp on Sensor (20 A/200 A AC) Model CT6841-05 AC/DC Current Probe (20 A) Model CT6843-05 AC/DC Current Pro…
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
123
Specications of the Options
Supported current
sensors
• Directly connectable current sensors
Model 9272-05 Clamp on Sensor (20 A/200 A AC)
Model CT6841-05 AC/DC Current Probe (20 A)
Model CT6843-05 AC/DC Current Probe (200 A)
Model CT6844-05 AC/DC Current Probe (500 A,
φ
20 mm)
Model CT6845-05 AC/DC Current Probe (500 A,
φ
50 mm)
Model CT6846-05 AC/DC Current Probe (1000 A)
Model CT6862-05 AC/DC Current Sensor (50 A)
Model CT6863-05 AC/DC Current Sensor (200 A)
Model 9709-05 AC/DC Current Sensor (500 A)
Model CT6904 AC/DC Current Sensor (500 A)
Model CT6865-05 AC/DC Current Sensor (1000 A)
Model CT6875 AC/DC Current Sensor (500 A)
Model CT6876 AC/DC Current Sensor (1000 A)
Model CT6877 AC/DC Current Sensor (2000 A)
• Current sensors that require Model CT9920 for connection
Model CT7631 AC/DC Current Sensor (100 A)
Model CT7636 AC/DC Current Sensor (600 A)
Model CT7642 AC/DC Current Sensor (2000 A)
Model CT7731 AC/DC Auto-Zero Current Sensor (100 A)
Model CT7736 AC/DC Auto-Zero Current Sensor (600 A)
Model CT7742 AC/DC Auto-Zero Current Sensor (2000 A)
Model CT7044 AC Flexible Current Sensor (6000 A,
φ
100 mm)
Model CT7045 AC Flexible Current Sensor (6000 A,
φ
180 mm)
Model CT7046 AC Flexible Current Sensor (6000 A,
φ
254 mm)
Measurement range • For the directly connectable current sensors, the instrument automatically recognizes the
rating of the current sensor.
2 A, 4 A, 10 A, 20 A, 40 A, 100 A (rating: 20 A)
4 A, 10 A, 20 A, 40 A, 100 A, 200 A (rating: 50 A)
20 A, 40 A, 100 A, 200 A, 400 A, 1000 A (rating: 200 A)
40 A, 100 A, 200 A, 400 A, 1000 A, 2000 A (rating: 500 A)
100 A, 200 A, 400 A, 1000 A, 2000 A, 4000 A (rating: 1000 A)
• For the current sensors that require Model CT9920 for connection, choose a conversion
rate or a model number.
200 A (Model CT7631, Model CT7731)
200 A, 400 A, 1000 A (Model CT7636, Model CT7736)
2000 A, 4000 A (Model CT7642, Model CT7742)
2000 A, 4000 A, 10000 A (Model CT7044, Model CT7045, Model CT7046)
2000 A, 4000 A, 10000 A, 20000 A, 40000 A, 100000 A (0.1 mV/A)
200 A, 400 A, 1000 A, 2000 A, 4000 A, 10000 A (1 mV/A)
20 A, 40 A, 100 A, 200 A, 400 A, 1000 A (10 mV/A)
2 A, 4 A, 10 A, 20 A, 40 A, 100 A (100 mV/A)
0.2 A, 0.4 A, 1 A, 2 A, 4 A, 10 A (1000 mV/A)
Frequency
characteristics
DC to 2 MHz (±3 dB)
Noise 10 mA p-p (max.) (using the 20 A sensor, with the 2 A f.s. range, with input terminals
connected with each other)
Low-pass lter Off, 5 Hz, 500 Hz, 5 kHz, 200 kHz ±50%; −3 dB
Input type Current sensor
Measurement
terminal
LR10-DC12BR (Hirose connector)
Input coupling DC/GND
5
Specications
124
Specications of the Options
Input resistance 1 M
Ω
±1%
Maximum input
current
Depends on a sensor.
Maximum rated
voltage to earth
Non-isolated
Maximum sampling
rate
5 MS/s
A/D resolution 16 bits
Guaranteed accuracy
period
1 year
Guaranteed
accuracy period after
adjustment made by
Hioki
1 year
Measurement
accuracy
±0.3% f.s. + (accuracy of current sensor)
Temperature
characteristics
±0.045% 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 (using the 20 A sensor, with the 20 A f.s. range, with the lter set at
5 Hz, with a current of 2 A DC inputted)