Hioki DM7275 Series - 1 Overview; Product Overview; Features; Temperature Compensation

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1
Overview
1.1 Product Overview
The Hioki DM7275 and DM7276 Precision DC Voltmeters can measure DC voltages from lithium-
ion batteries, electric double-layer capacitors, and other components as well as DC voltages output
by sensors and other devices with a high degree of accuracy.
1.2 Features
High-accuracymeasurement
The DM7275 and DM7276 deliver the following basic accuracy (in the 10 V range):
DM7275 0.0020% rdg. +12 µV
DM7276 0.0009% rdg. +12 µV
The DM7276 can measure a 4 V lithium-ion battery with accuracy of 48 µV.
Contactcheckfunction
When this function is enabled, measured values are displayed only when the measurement cables
are properly connected to the measurement target. It is particularly useful as a way to ensure highly
reliable results when measuring the potential on the exterior of a lithium-ion battery.
Temperature compensation
In addition to DC voltage, the DM7275/DM7276 can measure ambient temperature. When
measuring a target that exhibits a high degree of temperature dependency, this function corrects
voltage measured values using the measured temperature, making it possible to convert them to to
voltage values at a reference temperature.
High-speedmeasurementandmeasuredvaluememory
The DM7275/DM7276 can continuously save data to its 5000 data point internal memory at speeds
of up to 1 ms. This capability can be used to monitor instantaneous voltage uctuations or measure
multiple targets.
Extensiveinterfaceoptions
The DM7275/DM7276 provides USB, LAN, RS-232C*, GP-IB*, and EXT I/O interfaces, enabling its
use in a variety of applications.
*These interfaces are factory options that must be specied at the time of shipment.
Intuitive user interface
The DM7275/DM7276 has a 4.3” color LCD and an intuitive, touch-panel based user interface. It
also provides extensive analytical functionality, including statistical calculations and trend plots.
Smooth integration into production lines
• Since the DM7275/DM7276’s free power supply specications can accommodate a power supply
from 100 to 240 V, it can be easily deployed on production lines overseas.
• The instrument’s communications monitor and EXT I/O test functions facilitate smooth debugging
of testing systems.
• Judgment functions can be used to generate PASS/FAIL judgments based on the classication of
measurement results into HI, IN, and LO categories (comparator function) or to rank targets into
up to 10 categories (BIN function).
1 Overview
1
Overview
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