- Real 5½ digits readings resolution
- Up to 123 rdgs/s measurement speed
- True-RMS AC Voltage and AC Current measuring
- Quickly Save or Recall the 10 groups of Preset Configuration
- Preset 10 groups of Standard Sensor Configuration, built-in cold terminal compensation for thermocouple
- Clone the instrument configurations into other DM3058 /DM3058E via USB storage device
- The first 5½ digit digital multimeter passing LXI Criterion in industry, which can achieve system integration easily
- With easy, convenient and flexible any sensor measurement control software: UltraSensor
- Standard configuration interface: USB Device, USB Host, RS-232
- Support remote control via commands and compatible with commands of main stream multimeters
- Easy to Use Design
- 256×64 LCD
- Support double display, Chinese and English menu
- Built-in help system makes information acquisition more easier
- File management (support for USB-disk and local storage)
Specification
| DC Voltage | 200 mV and 2 V 10 MΩ or >10 GΩ selectable (Input signals that exceed ± 2.5 V in these ranges will pass the 100 kΩ (typical) clamp resistance.) 20 V, 200 V and 1000 V 10 MΩ ± 2% |
| Input Bias Current | <90 pA, 25℃ |
| Input Protection | 1000 V on all ranges |
| common mode rejection ratio | 120 dB (For the 1 kΩ unbalanced resistance in LO lead, maximum ± 500 VDC） |
| normal mode rejection ratio | 60 dB at “slow” measurement rate 20 dB are added if open the “AC filter” (Settling time will add 0.35 s while source impedance nears zero) |
| Testing Method | 4-wire resistance or 2-wire resistance optional For current source refer to LO input |
| Open-circuit Voltage | P/F in <8 V |
| Maximum Lead Resistance | 10% of ranges, on the range of 200 Ω, 1 kΩ, for each lead 1 kΩ, on all other ranges, for each lead |
| Input Protection | 1000 V, on all ranges |
| Shunt Resistor | 200 μA sampling voltage < 8 mV 2 mA sampling voltage < 80 mV 1Ω for 20 mA, 200 mA 0.008 Ω for 2 A, 10 A |
| Input Protection | Rear panel: accessible 10 A, 250 V fast-melt fuse Internal: 12 A, 250 V slow-melt fuse |
| Measurement Method | 1 mA ± 5% constant-current source, < 8 V open-circuit voltage |
| Response Time | 123 samples/sec, with beeper |
| Continuity Threshold | Adjustable between 1 Ω and 2000 Ω |
| Input Protection | 1000 V |
| Setup time Attentions | The setup time about voltage measurement is influenced by source resistance and media characteristics of cable as well as input signal. |