The accuracy is measured by connecting a known load at the output and measuring it with the ZS1100A. The output is a static load (resistor), and the current is measured with averaging. Observe the very low error rate across the whole range. This is possible due to the usage of precision components. The dynamic error is no different from the static error, as a SAR ADC is used in this tool. Using a Delta Sigma ADC to achieve high dynamic range is a cheaper option, but these can suffer from accuracy issues with fast-moving inputs.
The IoT Power Meter tool from ZSCircuits is a USB-based programmable DC power supply made for powering IOT devices in the lab. This tool can accurately measure the current consumption of IOT devices and estimate their battery life. With high dynamic range, fast response time, and long capture times, the ZS1100A provides precise measurement of Current vs time.
Features
Output programmable range of 0 to 6V with 10mV steps.
Source up to 2A max current. Sink up to 0.5A
Fast sampling rate of 1MSPS. (For current measurement)
Excellent step response of < 2uS.
High dynamic range measurement extending from 1uA to 1.5A.
High Accuracy of 1% of measured value/- 0.2uA across the entire range.
Resolution better than 100nA
Long continuous capture time (24-hour capture tested)
2 Quadrant operation (V+ ,I+) & (V+ ,I-).
This system supports negative current measurement to account for battery charging.
Electromagnetically shielded for excellent noise reduction with an aluminum enclosure
6 Bit Digital IO capture for synchronization within +/-1us.
Programmable output resistance
Battery emulation for most batteries used with IOT devices
Real-world battery models for accurate battery life estimation.
State-of-the-art data compression saves disk space. (24hrs on 10GB)
Powered by a 15V/65W adapter and connects to the PC over the USB 2.0 bus for data transfer.
Thermal protection to prevent overheating
ESD protection on all inputs and outputs
The OLED display is used to indicate the voltage, current, status, and other parameters.
Free GUI with waveform analysis tools for Windows.
Data export to Sigrok/Pulseview for UART, SPI, and I2C protocol analysis.
ASCII Data export to XML format for use with MS Excel.
Conforms to FCC, CE & RoHS standards.
Applications
Power profiling of BLE, WiFi, NB-IOT, and other wireless products.
Battery life estimation.
Debug hardware designs.
Optimize software and firmware for power consumption.
Additional information
Weight
2 lbs
Dimensions
8 × 6 × 2 in
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