NEW
3CH CURRENT UNIT
U8977
Dedicated Current Input Module Capable of Direct Sensor Connections
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myHioki
(logged in)
Key Features • Achieve large current measurement with high accuracy • Automatically recognize and scale simply by connecting the sensor • High speed sampling of 5 MS / s ensures high-speed phenomena are captured • High 16-bit A/D resolution
Model No. (Order Code)
| U8977 | For the MR6000 and similar products |
|---|
Note: Use it by installing it in the Memory HiCorder. Current sensor is not included - please purchase separately.
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
| Measurement functions | Number of channels: 3, Current measurement with optional current sensor |
|---|---|
| Input terminals | Dedicated connector terminal (ME 15 W) (Input resistance 1 MΩ, GND is common with the recorder main unit) |
| Applicable current sensor | (Direct connection): 9272-05, CT6841-05, CT6843-05, CT6844-05, CT6845-05, CT6846-05, CT6862-05, CT6863-05, 9709-05, CT6904, CT6865-05, CT6875, CT6876 (Connect using the optional conversion cable CT9920): CT7631, CT7636, CT7642, CT7731, CT7736, CT7742, CT7044, CT7045, CT7046 |
| Measurement range | • Directly connected current sensor: Automatic rating of adaptive current sensor When using 9272-05 (20 A), CT6841-05: 2 A to 100 A f.s., 6 ranges CT6862-05 : 4 A to 200 A f.s., 6 ranges When using 9272-05 (200 A), CT6843-05, CT6863-05: 20 A to 1000 A f.s., 6 ranges When using CT6844-05, CT6845-05, 9709-05, CT6904, CT6875: 40 A to 2000 A f.s., 6 ranges When using CT6846-05, CT6865-05, CT6876: 80 A to 4000 A f.s., 6 ranges • Current sensors connected via CT9920: Select conversion rate or model name When using CT7631, CT7731: 160 A / 200 A, 2 ranges When using CT7636, CT7736: 160 A to 1000 A, 5 ranges When using CT7642, CT7742: 1600 A / 2000 A / 4000 A, 3 ranges When using CT7044, CT7045, CT7046: 1600 A to 16000 A, 6 ranges |
| Measurement resolution | 1/32000 of measurement range (using 16-bit A/D conversion) |
| Highest sampling rate | 5 MS/s (3 channel simultaneous sampling) |
| Measurement accuracy | ±0.3% f.s. (with 5 Hz filter, add accuracy and characteristics of the current sensor to be used) |
| Frequency characteristics | DC to 2 MHz ±3 dB |
| Input coupling | DC/GND |
| Low pass filter | 5/ 500/ 5 k/ 200 kHz |
| 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) |
| Accessories | None |
Log into your myHioki account to access more technical documents and information where available.
Seminar Videos On Demand
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Seminar Schedule
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Sep 24, 2019 - Sep 26, 2019 | |
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2019 International Conference on Power Electronics and ECCE Asia (ICPE 2019 ECCE Asia) - Busan |
May 28, 2019 - May 30, 2019 |
Catalogs
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User Guides
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Manuals
If you can not download, log into your myHioki account to access more technical documents and information where available.
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Outline Drawings
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3CH CURRENT UNIT U8977 [64KB] |
Ver.00 |
Technical Notes
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Declaration of Conformity
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Drivers, Firmware
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Others
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Options
Use with these products
* Main products are listed below. For more information, please see each product page.
MEMORY HiCORDER MR6000
• Test ECUs, inverters and motors • Measure large currents in the fields of solar power and EV/HEV/PHEV development • Measure inverter and switching power supply signals with direct input
High precision current measurement
Up to 200 A (High precision) *ME15W (12-pin) terminal type
* Direct connection with U8977
AC/DC CURRENT SENSOR CT6862-05
• DC to 1MHz (Phase: up to 300kHz) • Rated 50A AC/DC • φ 24 mm (0.94 in) core dia.
AC/DC CURRENT SENSOR CT6863-05
• DC to 500kHz (Phase: up to 300kHz) • Rated 200A AC/DC • φ 24 mm (0.94 in) core dia.
AC/DC CURRENT PROBE CT6841-05
• DC to 1MHz (Phase: up to 300kHz) • Rated 20A AC/DC • φ 20 mm (0.79 in) core dia.
AC/DC CURRENT PROBE CT6843-05
• DC to 500kHz (Phase: up to 300kHz) • Rated 200A AC/DC • φ 20 mm (0.79 in) core dia.
CLAMP ON SENSOR 9272-05
• 1Hz to 100kHz (Phase: 5Hz to 50kHz) • Rated 20A/200A AC/DC • φ 46 mm (1.81 in) core dia.
High precision current measurement
Up to 1000 A (High precision) *ME15W (12-pin) terminal type
* Direct connection with U8977
AC/DC CURRENT SENSOR CT6875
• DC to 2MHz (Phase: up to 1MHz) • Rated 500A AC/DC • φ 36 mm (1.42 in) core dia.
AC/DC CURRENT SENSOR CT6876
• DC to 1.5MHz (Phase: up to 1MHz) • Rated 1000A AC/DC • φ 36 mm (1.42 in) core dia.
AC/DC CURRENT PROBE CT6844-05
• DC to 200kHz (Phase: up to 200kHz) • Rated 500A AC/DC • φ 20 mm (0.79 in) core dia.
AC/DC CURRENT PROBE CT6845-05
• DC to 100kHz (Phase: up to 100kHz) • Rated 500A AC/DC • φ 50 mm (1.97 in) core dia.
AC/DC CURRENT PROBE CT6846-05
• DC to 20kHz (Phase: up to 20kHz) • Rated 1000A AC/DC • φ 50 mm (1.79 in) core dia.
General purpose current measurement
Up to 6000 A (General purpose) *PL14 terminal type
* When connecting a general-purpose current sensor with PL14 terminal to the current unit U8977, conversion cable CT9920 is required separately
AC/DC AUTO-ZERO CURRENT SENSOR CT7731
・ DC to 5 kHz (-3dB) ・ Rated 100 A AC/DC ・φ 33 mm (1.30 in) core dia.
AC/DC AUTO-ZERO CURRENT SENSOR CT7736
・ DC to 5 kHz (-3dB) ・ Rated 600 A AC/DC ・φ 33 mm (1.30 in) core dia.
AC/DC AUTO-ZERO CURRENT SENSOR CT7742
・ DC to 5 kHz (-3dB) ・ Rated 2000 A AC/DC ・φ 55 mm (2.17 in) core dia.
AC/DC CURRENT SENSOR CT7631
・ DC to 10kHz (-3dB) ・Rated 100 A AC/DC ・φ 33 mm (1.30 in) core dia.
AC/DC CURRENT SENSOR CT7636
・ DC to 10kHz (-3dB) ・Rated 600 A AC/DC ・φ 33 mm (1.30 in) core dia.
AC/DC CURRENT SENSOR CT7642
・ DC to 10kHz (-3dB) ・Rated 2000 A AC/DC ・φ 55 mm (2.17 in) core dia.
AC FLEXIBLE CURRENT SENSOR CT7040 series
• 10 Hz to 50 kHz (±3dB) • 600A or 6000A AC rated • φ 254 mm (10.00 in) loop dia. to φ 100 mm (3.94 in)
PL14 to ME15W (12 pin) terminal conversion
When connecting a general-purpose current sensor with PL14 terminal to the Current Unit U8977, Conversion Cable CT9920 is required separately.
CONVERSION CABLE CT9920
Required to connect the PW3390 or other instrument’s ME15W terminal to a current sensor with a PL14 output connector.
Precautions for connecting current sensors
• The total number of current sensors and current probes that can be connected to the Memory HiCorder main unit at the same time is nine in total. (Total connected to Current Unit U897, Current Unit 8971, Probe Power Supply Unit Z5021)
• The current units that can be connected to the Memory HiCorder main unit at the same time are three units of U8977 and four units of 8971.
• There is no limitation on the number of connections when measuring current using voltage input on an Analog Unit by combining current sensor / current probe with sensor power supply.
• Only the U8977 can use a sensor with PL14 terminal via the CT9920. Sensors with PL14 terminals cannot be used with the 8971.
Applications
Gallery
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Related Products List
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- MEMORY HiCORDER
MR6000
- MEMORY HiCORDER
