Dedicated Current Input Module Capable of Supplying Power to Current Sensors
| Measurement functions | Number of channels: 2 CH, Current measurement with optional current sensor. Up to four modules of 8971 can be used with a Memory HiCorder (models compatible with installation). |
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| Input connectors | Sensor connector (input impedance 1 MΩ, exclusive connector for current sensor via conversion cable the 9318, common ground with recorder) | |||||
| Applicable current sensor | 9272-05, CT6841A, CT6843A, CT6844A, CT6845A, CT6846A, CT6862-05, CT6863-05, CT6872、CT6872-01, CT6873, CT6873-01, CT6875A, CT6875A-1, CT6876A, CT6876A-1, CT6904A, CT6904A-1, CT6904A-2, CT6904A-3
*Connect the optional Conversion Cable CT9901 {converts ME15W (12pin) terminal to PL23 (10pin) terminal} in combination with the 9318 supplied with model 8971. |
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| Measurement range | When Model 9272-05 (20 A), CT6841A is used: 2, 4, 10, 20, 40, 100 A f.s. (f.s. =20div, Choice of 6 ranges) When Model CT6862-05, CT6872, CT6872-01 is used: 4, 10, 20, 40, 100, 200 A f.s. (f.s. =20div, Choice of 6 ranges) When Model 9272-05 (200 A), CT6843A, CT6863-05, CT6873, CT6873-01, CT6904A, CT6904A-1, CT6904A-2, CT6904A-3 is used: 20, 40, 100, 200, 400, 1000 A f.s.(f.s. =20div, Choice of 6 ranges) When Model CT6844A, CT6845A, CT6875A, CT6875A-1, CT6846A, CT6876A(*1), CT6876A-1(*1) is used: 40, 100, 200, 400, 1000, 2000 A f.s.(f.s. =20div, Choice of 6 ranges) The measurable range is limited by the current sensor connected. Check the specifications of the respective current sensor. *1: The instrument recognizes this as a 500 A AC/DC sensor is connected; setting the ratio of the scaling function to 2 is required. |
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| Accuracy (with filter 5 Hz ON) Add the accuracy and characteristics of the current sensor used. | Measurement accuracy: ±0.65% f.s. RMS accuracy: ±1% f.s. (DC, 30 Hz to 1 kHz), ±3% f.s. (1 kHz to 10 kHz) RMS response time: 100ms (rise time from 0 to 90% of full scale), Crest factor: 2 Frequency characteristics: DC to 100 kHz, ±3dB (with AC coupling: 7 Hz to 100 kHz) |
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| Measurement resolution | Uses 12-bit A/D When used with MR8847A: 1/100th of the measuring range When used with MR6000: 1/2000 of the measuring range |
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| Highest sampling rate | 1 MS/s (simultaneous sampling across 2 channels) | |||||
| Other functions | Input coupling: AC/DC/GND, Low-pass filter: 5, 50, 500, 5k, 50kHz, or OFF | |||||
| Dimensions and mass | 106 mm (4.17 in) W × 19.8 mm (0.78 in) H × 196.5 mm (7.74 in) D, 250 g (8.8 oz) | |||||
| Included accessories | CONVERSION CABLE 9318 × 2 (To connect the current sensor to the 8971) | |||||
