Description
DM7275 DC Voltmeter for R and D to Production
The DM7275 Precision DC Voltmeter is designed for engineers who need consistent, high accuracy DC voltage measurement from early research stages through full scale manufacturing. Delivering a 7 and a half digit resolution with a guaranteed one year accuracy of 20 ppm, the DM7275 supports precise evaluation of lithium ion batteries, electrical double layer capacitors, electric vehicle components, and other advanced electronic devices.
Accuracy and Calibration Stability
At the heart of the DM7275 DC Voltmeter is a highly stable internal voltage reference constructed from components that have passed Hioki’s strict long term evaluation process. This reference works in combination with Hioki’s fully automatic self calibration technology to maintain measurement accuracy over time. The result is dependable performance without the need for frequent manual recalibration, even in demanding production environments.
Temperature Compensation Advantage
Voltage measurements in lithium ion batteries are highly sensitive to temperature changes. A shift of just one degree can cause microvolt level variations that impact test accuracy. The DM7275 DC Voltmeter addresses this challenge by measuring voltage and temperature simultaneously. Using registered temperature coefficients, the instrument converts measured values into standardized temperature compensated voltages, allowing engineers to evaluate true electrical behavior regardless of ambient conditions.
Measurement Reliability
To reduce errors caused by unstable probe connections, the DM7275 includes a capacitance contact check using a built in C monitor. This feature verifies contact condition before measurement, improving reliability and reducing rework in automated systems. The instrument is also designed to maintain high repeatability and stable performance even when operating outside typical environmental specifications.
System Integration
With built in EXT I O, LAN, and USB interfaces, the DM7275 DC Voltmeter integrates easily into automated test systems and global production lines. Optional GP IB or RS 232C models provide additional flexibility for legacy systems. A built in variable power supply further supports worldwide deployment without external converters.
Specifications Table
| Specification | Details |
| Product Name | DM7275 Precision DC Voltmeter |
| Display Resolution | 7 and a half digits |
| Accuracy | 20 ppm, 1 year guaranteed |
| Measurement Type | DC voltage |
| Primary Applications | Lithium ion batteries, capacitors, EV components |
| Temperature Measurement | Supported |
| Temperature Compensation | Supported |
| Calibration Method | Fully automatic self calibration |
| Contact Check | Capacitance contact check |
| Interfaces | EXT I O, LAN, USB |
| Optional Interfaces | GP IB, RS 232C |
| Power Supply | Built in variable power supply |
| Available Models | DM7275 01, DM7275 02, DM7275 03 |
| Measurement Probes | Sold separately |
| Included Accessories | Power cable and documentation |
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