17.6 Input Modules Specifications
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Chapter 17 Specifications
17
*: During current measurement, add the accuracy and characeristic of clamp sensor using with Model 8971.
Storage temperature and humid-
ity ranges
Same as the Memory HiCorder in which the 8970 is installed
Operating environment Same as the Memory HiCorder in which the 8970 is installed
Applicable standards Safety EN 61010, EMC EN 61326 Class A
Dimensions and mass Approx. 106W x 19.8H x 196.5D mm (4.17"W x 0.78"H x 7.74"D) (excluding projections),
Approx. 250 g (8.8 oz.)
17.6.6 8971 Current Unit
Temperature and humidity range
for guaranteed accuracy
23 ± 5°C (73 ± 9F°), 20 to 80% RH (when zero adjustment is executed 30 minutes after power on)
Guaranteed accuracy period 1 year
Number of input channels 2 channels
Applicable current sensors 9272-10, 9277, 9278, 9279, 9709 , CT6862, CT6863
(To connect with Model 8971, using Model 9318 Conversion Cable)
Measurement ranges When using the Model 9272-10 (20A), 9277: 100m, 200m, 500m, 1, 2, 5 A/div
When using the Model 9272-10 (200A), 9278,CT6863: 1, 2, 5, 10, 20, 50 A/div
When using the Model 9279, 9709: 2, 5, 10, 20, 50, 100 A/div
When using the Model CT6862: 200m, 500m, 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 1MΩ±1%
A/D resolution 12 bit
Maximum sampling rate 1 MS/s
Input terminals Sensor connector HR10A-10R-S (HIROSE)
Operating temperature and hu-
midity 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 humid-
ity 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 8847)
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