Siglent SDM4055A 5.5 Digit Digital Multimeter, DCV 200 mV -1000 V, ACV 200 mV – 750 V

Trigger and Sample

Trigger Modes:
Auto Trigger, Single Trigger, External Trigger, Level Trigger
SDM4000A can capture one or a specified number of readings upon receiving a trigger signal. Users can configure the delay time between trigger activation and data acquisition.

Supported Sampling Modes:
Continuous Sampling
Recorder Function
Digitizer Function

Data Logging Function

Purpose: Ideal for long-term data logging applications.
Key Specifications:
Recording Interval: 0.1 s to 3600 s
Maximum Internal Memory: 2M points
Maximum File Storage: 360M points
Maximum Duration: 100 hours
Measurable Parameters:DCV, DCI, ACV, ACI, Ω, frequency, period, temperature.

Digitiser Function

Advantages:
Outperforms oscilloscopes and spectrum analyzers in low-frequency, high-precision sampling.
Ideal for applications such as precision digital sampling and audio signal digitization.

Key Specifications:
Maximum Sampling Rate: 50 kSa/s
Single Capture Capacity: 2M points
Bandwidth: 10 kHz

Math Function

Statistics:
Calculates Max, Min, Average, Peak-to-Peak, Standard Deviation, Sample Count.

Limit Testing:
Performs Pass/Fail tests based on user-defined upper/lower thresholds.

dBm Calculation:
Computes power (0 dBm = 1 mW) across a reference resistor.

dB Calculation:
Measures relative values in decibels against a reference.

Relative Value Calculation:
Displays the difference between actual measurements and a stored reference value.

Dual Display

Function: Simultaneously displays two characteristics of the same input signal.

Advantage: Eliminates the need for additional instruments, facilitating efficient multi-parameter monitoring.

Enhanced Capability: Streamlines intricate testing and measurement workflows.

Probe Hold

Stability Alert: Triggers a buzzer when stable readings are detected, automatically displays the value on the front-panel display

Features:
Retains the latest 8 readings on-screen.
Supports multiple measurement types (e.g., DCV, ACV, resistance).
Allows users to review historical data or clear displayed readings at any time.

Storage/Recall

Store/Restore Settings: Supports saving and restoring instrument parameter files and data files in/from internal storage and external USB storage devices.

Timestamp Support: Adds timestamps to recorded readings.
Internal Storage: Up to 2M points of internal memory.
Memory Capacity: 2Gb NAND Flash storage.

File Formats:
Measurement data saved as CSV files.
Scan card configurations saved as XML files.

File Management: Users can create folders, save screenshots, and perform operations like copying, renaming, and deleting files.

Numerical Display: Observe measurement data changes intuitively.

Histogram: Displays measurement data in a distribution format.

Trend Chart: Shows data trends over time in continuous measurement mode.

Bar Meter: Supports horizontal scaling modes: Default, Manual, or Limit-based.