This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.


ITEMLIST
Products Infomation

7-1/2 Digit DC Voltmeter for R&D to Production Lines
The DM7275 Precision DC Voltmeter delivers superior measurement accuracy of 20 ppm (0.002%), an accuracy level that is demanded by advanced applications such as aging tests of lithium-ion batteries.
Other key features include contact check to maximize measurement reliability, binning and temperature compensation, making the voltmeter ideal for developing and manufacturing Li-ion batteries, electrical double-layer capacitors, electric vehicle components, and other next generation devices.
PRECISION DC VOLTMETER
Model:
DM7275
Maker:
HIOKI
Fully-Automatic Self-Calibration and Highly-Stable Voltage Reference
Internal voltage reference represents screened components that have passed Hioki’s special in-house tests and undergone long-term evaluation before being embedded in the system. Combining this with HIOKI’s original fully automatic “Self-calibration” technology, we are able to offer a 1-year guaranteed 20ppm accuracy.
Measurement performance resistant to temperature changes and at high repeatability
The DM7275 is equipped with a measurement engine resistant to extreme temperature changes even outside product specifications
Simultaneous Temperature Measurement + Display Converted Voltage in Standard Temperature
The open circuit voltage (OCV) for lithium-ion batteries can fluctuate by several dozen μV if the ambient temperature fluctuates by even 1°C (1.8°F). For components with this kind of temperature characteristic, you can use the temperature compensation function to display a value converted into a standard temperature voltage from the registered temperature coefficient. This is a new approach made possible by the DC voltmeter DM Series, which can measure both temperature and voltage simultaneously.
Key Feature
- Basic model with 1-year 20ppm Accuracy: DM7275
- Capacitance contact check (using built-in C-monitor)
- Supports global production with built-in variable power supply
- Built-in EXT I/O, LAN, and USB
DM7275 Precision DC Voltmeter Introductory Video
Specification
Accuracy guaranteed: 1 year
DC Voltage | 100 mV ( ±120.000 00 mV) to 1000 V ( ±1000.000 0 V ), 5 ranges |
Basic accuracy | 10 V range: ±0.0020% rdg. ±12 μV |
Temperature | -10.0°C to 60.0°C (14.0°F to 140°F), combined with sensor Z2001: ±0.5°C (5.0°C to 35°C) |
Integration time | Integration time unit: PLC/ms (PLC setting: 0.02/ 0.2/ 1/ 10/ 100, ms setting: 1 ms to 9999 ms) |
Measurement
support functions |
Smoothing function, null, temperature compensation, scaling, over-range display, self-calibration, auto-hold, contact check |
Management
support functions |
Comparator, BIN, absolute value judgment, label display, statistics, measurement information, communication monitor, EXT. I/O TEST |
Contact check | Check signal: 10 mV rms, threshold value: 0.5 nF to 50 nF (Cannot use in the 100 V/1000 V ranges), Contact check integration time: 1 ms to 100 ms |
Interfaces | Standard: LAN (100BASE-TX), EXT. I/O, USB flash drive / USB device (USB2.0 Full-Speed) Optional: GP-IB (-02 type only) / RS-232C (-03 type only) / PRINTER (-03 type only) |
Power supply | 100 to 240 V AC, 50/60 Hz, 30 VA |
Dimensions and mass | 215 mm (8.46 in) W × 88 mm (3.46 in) H × 232 mm (9.13 in) D (-01 type): 2.3 kg (81.1 oz), (-02/-03 type): 2.4 kg (84.7 oz) |
Included accessories | Instruction manual ×1, power cord ×1, application disk (CD-R) ×1 |