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DIGITAL VOLTMETER UNIT

MR8990

6 1/2-digit high resolution: Max 1200000 counts, even minute fluctuations in the output voltage of sensors

Key Features • Use the DVM Unit MR8990 to measure DC voltages on 2 channels • High-precision measurement for applications such as investigating minute voltage fluctuations in sensor output • For use with the Memory HiCorder (MR8741/8740, MR8827 and MR8847A only) • Unlike standard multi-channel scan-type loggers, these instruments can perform simultaneous sampling • High accuracy of ±0.01 % and super-high 1.2 million-count resolution • High-speed sampling at 500 samples/s • Isolated input (channel-to-channel and channel-to-chassis: max. rated voltag to earth of 300 V AC/DC)



Model No. (Order Code)

MR8990 For the MR6000, MR8740, MR8847A, MR8827, and similar products

Note: This module must be used with the Memory HiCorder. Input cords are not included. Please purchase them separately.

Guarantee3years
CE

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Measurement functionsNumber of channels: 2, for DC voltage measurement
Input connectorsBanana input connectors (Input resistance: 100 MΩ or higher with 100 mV f.s. to 10 V f.s. range, otherwise 10 MΩ)
Max. rated voltage to earth: 300 V AC or DC (with input isolated from the main unit, the maximum voltage that can be applied between input channel and chassis, and between input channels without damage)
Measurement ranges100 mV f.s. (5 mV/div): -120.0000 mV to 120.0000 mV, 0.1 μV resolution to 1000 V f.s. (50 V/div): -500.000 V to 500.000 V, 1 mV resolution, 5 ranges
Measurement resolution1/50 000 of measurement range (using 24 bit ΔΣ modulation A/D)
Integration time20 ms × NPLC (during 50 Hz), 16.67 ms × NPLC (during 60 Hz)
NPLC: 0.1 to 0.9, 1 to 9, 10 to 100 settings
Response time2 ms + 2 × integration time or less (rise - f.s. → + f.s., fall + f.s. → - f.s.)
Basic measurement accuracy±0.01% rdg. ±0.0025% f.s. (at range of 1000 mV f.s.)
Maximum input voltage500 V DC (maximum voltage that can be applied between input connectors without damage)
Dimensions and mass106 (4.17 in) W ×19.8 (0.78)H × 196.5 (7.74 in)D mm, 260 g (8.8 oz)
AccessoriesInstruction manual ×1 (For single product shipment only)

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Seminar Videos On Demand

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Seminar Schedule

Registration Open

IEEE IFEEC 2019 - Singapore

Nov 25, 2019 - Nov 28, 2019

Registration Open

SPS - Nuremburg, Germany

Nov 25, 2019 - Nov 28, 2019

Catalogs

Catalog: Digital Multi-Module (DMM) Station MR8990+MR8741/MR8740 Download PDF  [2MB] English

User Guides

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Manuals

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Instruction Manual Japanese
English
Ver.02
Instruction Manual Japanese
English
Ver.09

Outline Drawings

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Ver.02

Technical Notes

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Declaration of Conformity

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Drivers, Firmware

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Others

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Gallery

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