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DMM STATION MR8990+MR8741/MR8740

The MR8740 and MR8741 are rack-mountable data acquisition systems that deliver high-speed, multi-channel measurements over maximum of 32+22 channels. The MR8990 DVM unit is a 2-channel input unit for the MR8740/MR8741 for measuring minute fluctuations in output from sensors in automobiles and other equipment and voltage fluctuations in devices such as batteries at high levels of precision and resolution.

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Description

Key Features

  • Use the new DVM Unit MR8990 to measure DC voltages on 2 channels (for use with the Memory HiCorder MR8741/8740 only)

  • High-precision measurement for applications such as investigating minute voltage fluctuations in sensor output

  • The MR8741 (MR8740) can save data from 16 (54) Digital Voltmeter Units at once. (DCV measurement 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)

DVM Unit MR8990 Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Measurement functions Install into Memory HiCorder MR8740/8741 for use; 2 channels of DC voltage measurement
Measurement ranges
(20 div. f.s.)		 100 mV range (5 mV/div.): -120.0000 mV to 120.0000mV, 0.1 μV resolution
to
500 V range (50 V/div.): -500.000 V to 500.000 V, 1 mV resolution, 5 ranges
Measurement accuracy Basic accuracy: ±0.01% rdg. ±0.0025% f.s.
Max. allowable input 500 V DC (upper limit voltage that can be applied between input terminals without damage)
Max. rated voltage to earth 300 V AC/DC (input and instrument are isolated; upper limit voltage that can be applied between input channels or between input channels and chassis without damage)
Max. sampling rate 2 ms (500 samples/s)

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