MR8740T_Quick guide_eng_20191016H.pdf - 第130页

124 Specications 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 …

123

Specications 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,

20 mm)

Model CT6845-05 AC/DC Current Probe (500 A,

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,

100 mm)

Model CT7045 AC Flexible Current Sensor (6000 A,

180 mm)

Model CT7046 AC Flexible Current Sensor (6000 A,

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

Specications

124

Specications of the Options

Input resistance 1 M

±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)

125

Specications of the Options

Model U8978 4CH Analog Unit (The rmware of ver. 2.00 or later is

required to install the module.)

Conditions of guaranteed accuracy

Specied 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: Model 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 100, 200, 400 mV f.s., 1, 2, 4, 10, 20, 40 V f.s.

Maximum input

voltage

(Direct input) 40 V DC

(In combination with Model 9665) 400 V DC

Maximum rated

voltage to earth

(Direct input)

30 V AC, 60 V DC (between each input channel and the enclosure, between any two of

input channels)

(In combination with Model 9665)

300 V AC, DC, Measurement category II (between each input channel and the enclosure,

between any two of input channels)

Measurement

terminal

Insulated BNC terminal

Number of channels 4 channels

Frequency

characteristics

DC to 2 MHz, −3 dB

Noise 500 μV p-p (typ.), 1 mV p-p (max.) (with the highest sensitivity range and the terminals of

each input connector connected with each other)

Input type Unbalanced input (oating)

Input coupling DC/GND

Input resistance 1 M

±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

Specications