Hioki MR8740, Instruction Manual

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17.6 Input Modules Specifications
355
Chapte
r 17 S
pecifications
16
17
*: During current measurement, add the accuracy and characeristic of clamp sensor using with Model 8971.
*
2
: The instrument recognizes this as a 500 A AC/DC sensor is connected; setting the ratio of the scaling function to 2 is required.
17.6.6 8971 Current Unit
Temperature and humidity
range for guaranteed accuracy 23°C ± 5°C (73.4 ± 9.0°F), 20% RH to 80% RH (when zero adjustment is executed 30 minutes
after power on)
Product warranty period
3
year
Guaranteed accuracy period 1 year
Number of input channels 2 channels
Applicable current sensors Model 9272-10, 9277, 9278, 9279, 9709, CT6841, CT6843, CT6844, CT6845, CT6846,
CT6862, CT6863, CT6865
Hioki current sensors with RM515EPA-10PC (Hirose) installed
(Supported conversion ratios: 2 V/20 A, 2 V/50 A, 2 V/200 A, 2 V/500 A, 2 V/1000 A*
2
)
(To connect with Model 8971, using Model 9318 Conversion Cable)
Measurement ranges When using the Model 9272-10 (20 A), 9277, CT6841:
100 m, 200 m, 500 m, 1, 2, 5 A/div
When using the Model 9272-10 (200 A), 9278, CT6843, CT6863:
1, 2, 5, 10, 20, 50 A/div
When using the Model 9279, 9709, CT6844, CT6845, CT6846*
2
, CT6865*
2
:
2, 5, 10, 20, 50, 100 A/div
When using the Model CT6862: 200 m, 500 m, 1, 2, 5, 10 A/div
Measurement accuracy* ±0.65%f.s. (filter 5 Hz ON)
±0.85%f.s. (filter 5 Hz ON, for using with Model 9278 or 9279)
RMS accuracy* ±1%f.s. (DC, 30 to 1 kHz), ±3%f.s. (1 kHz to 10 kHz), (Sine wave input, filter 5 Hz ON)
Response time* 100 ms (rise 0
→
90%f.s.)
Crest factor 2
Temperature characteristic* ±0.075%f.s./°C
Frequency characteristic* DC Coupling: DC to 100 kHz ±3 dB
AC Coupling: 7 Hz to 100 kHz ±3 dB (low cut-off frequency 7 Hz±50%)
Noise* 10 mAp-pmax (sensitivity range, with input shorted) (for 20 A/2V range)
Low-pass filter OFF, 5, 50, 500, 5k, 50 k±50%(Hz)-3 dB
Input type Unbalanced (Not insulated)
Input coupling AC/DC/GND
Input resistance 1M
Ω
±1%
A/D resolution 12 bit
Maximum sampling rate 1 MS/s
Input terminals Sensor connector HR10A-10R-S (HIROSE)
Operating temperature and
humidity ranges Same as the Memory HiCorder in which the 8971 is installed
Operating environment Same as the Memory HiCorder in which the 8971 is installed
Storage temperature and hu-
midity ranges -10 to 50°C (14 to 122°F), 80% RH or less (no condensation)
Dimensions Approx. 106W x 19.8H x 196.5D mm (4.17"W x 0.78"H x 7.74"D) (excluding projections)
Mass Approx. 250 g (8.8 oz.)
Applicable Standards Safety EN 61010
EMC EN 61326 Class A
Accessories For connecting the clamp sensor: Model 9318 Conversion Cable x 2, Instruction Manual
Number of the 8971 available
for Memory HiCoder Max. 4 unit (for Model MR8740)
(cannot be used with
MR8741
)