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For professionals (EU) | All data subject to change

Newtons4th PSM3750 Series
Frequency Response Analyzer
Galvanically Isolated Generator up to 500 Vpk, Galvanically Isolated Inputs up to 500 Vpk

Highest Measurement Accuracy – Compactly Integrated

As a frequency analyzer and response measurement device, the PSM3750 delivers reproducible data for frequency analysis and evaluation – from laboratory applications to quality assurance. At the same time, it demonstrates its strengths as a powerful frequency response analyzer for gain and phase measurements across wide frequency ranges.

Technical Performance in a Compact Design

Precise sweep techniques, high signal purity, and clear displays ensure low measurement uncertainty and excellent repeatability. Calibration and measurement processes remain transparent, while software and reporting tools provide centralized access to results. When required, the instrument can also be used as an auxiliary frequency meter, accurately displaying and documenting frequencies.

User-Friendly Operation and Modern Interfaces

USB, LAN, RS-232, and GPIB interfaces enable seamless integration into automated test systems. The “PSMComm2” software simplifies setup, visualization, and reporting—allowing users to measure, compare, and document results within a single workflow. The device is compatible with standard equipment racks and existing laboratory infrastructure.

Your Advantage: Precision and Future-Proof Design

With the PSM3750, users benefit from an instrument that saves time, delivers reliable results, and integrates flexibly into a wide range of applications. It combines precision, versatility, and ease of use in a single device, meeting the demanding requirements of modern electronics engineering.

Interested in the PSM3750? Or would you like to learn more about its applications in your field?

Our team will be happy to advise you personally and help you find the ideal solution for your measurement requirements.

Variants

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Specifications

Specification Value
Frequency Range 10 µHz – 50 MHz
Gain Accuracy 0.31 dB + 0.04 dB/MHz
Phase Accuracy 0.05° + 0.00015°/kHz
Measurement Speed up to 100 readings per second
Filter / Bandwidth 0.2 seconds
Signal Source / Generator 0 to ±10 Vpk, galvanically isolated up to 500 Vpk
Inputs 2 or 3 isolated inputs (model dependent), galvanically isolated up to 500 Vpk
Interfaces / Communication USB, LAN, RS-232, GPIB (IEEE‑488)
Measurement Modes / Functions FRA (Gain/Phase measurement), PAV (Phase Voltmeter), RMS Voltmeter, Power Analysis, LCR measurements, Harmonic Analysis, Oscilloscope function
LCR Frequency Range 10 µHz – 50 MHz (with Impedance Interface IAI2)
Form Factor / Dimensions compact lab design (detailed dimensions in the PDF data sheet “PSM3750 Dimensions”)

Options & Accessories

Manufacturer number Name
500-042 Injection transformer – standard (10 Hz–200 kHz)
500-047 Injection transformer – high frequency (HF) (500 Hz–35 MHz)
500-048 Injection transformer – high voltage (HV) (5 Hz–15 MHz)
500-070 Low-frequency injection module

Scope of Delivery

Scope of delivery
PSM3750 main unit 2 or 3 channels, factory calibrated
Power cable  
Test leads / probes 2 sets with 2-channel unit, 3 sets with 3-channel unit
Output lead generator output
Interface cables USB and RS-232
Documentation user manual and calibration certificate
PC software PSMComm2 (download)

Applications

Application examples
Power Electronics Development and testing of power supplies, inverters, and converters
Motors & Drives Frequency response analysis of motor controllers and electrical drive systems
Transformers & Power Distribution Characterization of transformers and transmission / distribution lines
Control Loops & Automation Stability analysis and optimization of control loops (gain/phase)
Electronic Circuits & Components Design validation, fault diagnostics, and parameterization of analog and digital circuits
Aerospace & Avionics Testing of on-board electronics and signal integrity assurance
Standards & Compliance Testing Support for testing according to relevant IEC and industry standards
Biological & Electrochemical Systems Impedance and frequency response measurements, e.g. EIS in R&D
Communication & Networking Powerline communication (PLC) testing and selective level measurements

Videos

Supplier

Newtons4th Ltd (abbreviated to N4L) was established in 1997 to design, manufacture and support innovative electronic equipment to a world-wide market.

Specialising in sophisticated test equipment for the power electronics industry including Power Analyzers, Frequency Response Analyzers (gain/phase analyzers), AC Power Sources, Impedance Analyzers and Selective Level Meters.