Description
Overview
GAOTek ohmmeters are a full-featured, 199999 counting 5½ digits desk type true RMS digital multimeter with stable performance. The STM32 chip and external integration AD chip used by the meter offer strong overall functionality, excellent performance, and good experience for users; its 3.5 in (8.89 cm) large screen has clear displays of reading, rich content, and a good result of display. It is mainly powered driving which makes it highly reliable. Its comprehensive features, full-range overload protection and unique design make it the first choice for electricians and university laboratories. In addition, GAOTek ohmmeters are equipped with the calibration function which allows the user to calibrate according to actual needs and is simple and convenient.
Features
- 5½ digit resolution for precise measurements
- 5 in (8.89 cm) display with clear, content-rich readings
- Dual parameter displays for simultaneous measurement information
- Adjustable measurement speed: FAST, MID, SLOW
- Duty cycle measurement and square wave output functions
- Manual or automatic range setting for flexibility
- Communication interfaces: USB, RS232 with SCPI protocol
- Versatile measurements: AC or DC voltage, current, resistance
- Frequency measurement up to 20 MHz, capacitance measurement
- Automatic, external, and single trigger measurement options
- Keypad lock, customizable settings for user preferences
- Simple external calibration function for accuracy
- Mathematical functions: statistics, relative measurement, dB, dBm
- Additional features: on or off, diodes, reading or data hold, key tone
Technical Specifications
| Display Screen | 3.5 in (8.89 cm) TFT LCD (resolution of 320 pixels x 480 pixels) | |
| Number of Display Digits | 51/2 | |
| Signal Terminal | Front | |
| Fastest Measuring Speed | 6 readings or s | |
| Function | No. | Uncertainty, ± (% of reading + least significant digit) |
| DCV | Uncertainty | 0.015% + 3 |
| Measurement Range | 1 uV to 1000 V | |
| Maximum Resolution | 1 uV | |
| ACV | Uncertainty | 0.2% + 100 |
| Measurement Range | 1 uV or 750 V | |
| Maximum Resolution | 1 uV | |
| Frequency Range | 40 Hz to 100 kHz | |
| DCI | Uncertainty | 0.05% + 10 |
| Measurement Range | 0.001 uA to 10 A | |
| Maximum Resolution | 0.001 uA | |
| ACI | Uncertainty | 0.3% + 400 |
| Measurement Range | 0.001 uA to 10 A | |
| Maximum Resolution | 0.001 uA | |
| Frequency Range | 40 Hz to 5 kHz | |
| Resistance | Uncertainty | 0.02% + 6 |
| Measurement Range | 0.001 Ω to 20 MΩ | |
| Maximum Resolution | 0.001 Ω | |
| Frequency or Cycle | Uncertainty | 0.1% + 3 |
| Measurement Range | 200 Hz to 20 MHz | |
| Maximum Resolution | 0.001 Hz | |
| Capacitance | Uncertainty | 2% + 5 |
| Measurement Range | 2 nF to 10 mF | |
| Maximum Resolution | 1 pF | |
| Mathematical Functions | Relative measurement, max or min, dB, dBm, reading hold | |
| Data Storage or Reading | Yes | |
| Interfaces | USB Device, RS232, (Optional: USB Host LAN, Gpib) | |
| Trigger Measurement | Yes | |
| Square-wave Output | Yes | |
| Fast Measurement | Yes | |
| Resistance 4-line Measurement | Yes | |
| External Trigger Measurement | Yes | |
| AC + DC Measurement | Yes | |
| Calibration | Yes | |
| On-off or Diode | Yes | |
| Limit Test Function | Yes | |