N4L PSM3750 Frequency Response Analyzer 10μHz–50MHz Isolated Input (500Vpk)

Model：PSM3750 Country of Origin：UK

Category：Frequency Response Analyzer

Overview：

Building on the success of the PSM2200 and PSM17xx series frequency response analyzers, the PSM3750 also draws on experience gained from the design and development of the isolated input channels in the power analyzer range to deliver a solution for high-voltage, high-precision, isolated gain and phase measurements. The PSM3750 features an innovative design that combines direct digital analysis with heterodyne techniques within 500 Vpk electrically isolated input/output channels, providing extensive measurement capability over a wider frequency range than any other instrument available today.

Like other N4L products, the PSM3750 NumetriQ uses the latest DSP and FPGA technology to optimize the use of its analog hardware, delivering speed and measurement flexibility without compromising the performance of any measurement function.

Features

Specifications

Application Notes

Functions & Configuration

PSM3750 Frequency Response Analyzer: 10 μHz–50 MHz, isolated inputs (500 Vpk), isolated AC + DC coupled generator

Building on the success of the PSM2200 and PSM17xx series frequency response analyzers, the PSM3750 incorporates experience gained from the design and development of the isolated input channels in the power analyzer range to deliver a solution for high-voltage, high-precision, isolated gain and phase measurements. The PSM3750 features an innovative design that combines direct digital analysis and heterodyne techniques within 500 Vpk galvanically isolated input/output channels, providing extensive measurement capability over a wider frequency range than any other instrument available today.

Features and Benefits

Frequency range 10 μHz to 50 MHz	Isolated inputs – 500 Vpk
Gain accuracy < 1 MHz: 0.01 dB	Phase accuracy < 1 kHz: 0.025°
Frequency response analyzer	Impedance analyzer
Vector voltmeter / phase angle voltmeter	True RMS voltmeter / oscilloscope
Loop response analysis	Harmonic analyzer

Frequency response analyzer
Measurement	Amplitude, gain (CH1/CH2, CH2/CH1), gain (dB), Offset Gain (dB), Phase (º)
Frequency range	10μHz – 50MHz
Gain accuracy (in dB)	0.01dB + 0.1dB / MHz < 5MHz 0.31dB + 0.04dB / MHz < 50MHz
Phase accuracy	0.025º < 10kHz 0.05 degrees + 0.00025 degrees/kHz < 50MHz
Frequency source	Generator or CH1 input
Measurement	Real-time DFT with no missing data
Speed	Up to 100 Readings per Second
Filter	Selectable from 0.2 s
Phase angle voltmeter
Measurement	In-Phase, Quadrature, tan ø, Magnitude, Phase, In-Phase Ratio, RMS, RMS Ratio, LVDT Differential, LVDT Ratio
Frequency range	10μHz – 50MHz
Basic accuracy (AC)	0.075% range + 0.075% reading + 50μV < 10kHz 0.075% range + 0.25% + 0.001% / kHz reading + 50μV < 1MHz 0.075% range + 0.01% + 0.00025% / kHz reading + 50μV < 50MHz
L C R Meter
Features	L, C, R (AC), Q, TANΔ, Impedance, Phase – series or parallel circuit
Frequency range	10μHz – 50MHz (35MHz - 50MHz reference only)
Current shunt	External or optional IAI2 impedance interface
LCD display measurement functions
Resistance （R）	1 milliohm to 500 milliohm
Reactance (X)	1 milliohm to 500 milliohm
Impedance (Z)	1 milliohm to 500 milliohm
Capacitance (Cp & Cs)	1pF to 1mF
Phase angle	0 to 360 degrees, 0.001 degree resolution
Q. Factor	+/- 0.00001 ~ 9999.99
Tan Delta (reciprocal of Q, also known as dissipation factor (D)	+/- 0.00001 ~ 9999.99
Admittance (Y) reciprocal of impedance (Siemens)	+/- 2nS to 1KS
Conductance (G) — resistive part of admittance (siemens)	+/- 2nS to 1KS
Susceptance (B) — reactive part of admittance (siemens)	+/- 2nS to 1KS
Voltage bias	+/- 10V
Range (external shunt)	Inductance 1H to 100 H Capacitance 100pF to 100F Resistance 1Ω to 1MΩ
Basic accuracy	0.1% + shunt tolerance
Sweep capability	All AC functions
True RMS voltmeter
Channel	2 (optional third channel)
Frequency range	DC to 5MHz only 5MHz to 50MHz fundamental
Measurement	RMS, AC, DC, peak, CF, surge, decibel
Basic accuracy (AC)	As PAV + 0.05mV
Basic accuracy (DC)	0.1% range + 0.1% reading + 0.5mV
Power meter
Measurement	W, VA, PF, V, A, total harmonics, fundamental and integrated, power harmonics
Frequency range	DC to 5MHz only 5MHz to 50MHz fundamental
Current shunt	External
Current accuracy	As voltage + external shunt tolerance
Watt accuracy	0.1% VA range + 0.1% reading + external shunt tolerance
Signal generator
Type	Fully isolated 10Vrms output protected to 500Vpk, direct digital synthesis
Frequency	10μHz – 50MHz
Waveform	Sine wave, sine wave, triangle wave, sawtooth wave, white noise
Accuracy (without fine adjustment)	Frequency 0.05% Amplitude ±5% < 10MHz, Amplitude ± 10% < 50MHz
Impedance	50 ohm ± 2% 100pF to chassis
Output level (open circuit)	35mV to 10V/s
Offset	±10V DC, resolution 20mV
Harmonic analyzer
Sweep	Single or series
Frequency range	20mHz to 5MHz 5MHz to 50MHz fundamental only
Measurement	Harmonics, series, harmonic distortion, differential total harmonic distortion
Max harmonics	100
Input range
Differential input	2 or 3 x isolated inputs 500Vpk
Connection	Isolated BNC
Coupling	AC+DC, AC (<10 V DC), AC (< 500 V DC)
Range	3mV， 10mV， 30mV， 100mV， 300mV， 1V，3V， 10V， 30V， 100V， 300V， 500V，300mV∗， 1V∗， 3V∗， 10V∗∗ High voltage attenuator
Scaling	1 x 10^-9 to 1 x 10^9
Ranging	Fully automatic, up-only, or manual
Input impedance	1M ohm differential / 100pF to chassis
Model
Available software packages
PSM3750 – 2C PSM3750 – 3C PSM3750 – 2C + IAI2 PSM3750 – 3C + IAI2	2 Channel PSM3750 3 Channel PSM3750 2 Channel PSM3750 + IAI2 3 Channel PSM3750 + IAI2
IAI2 – Impedance Analysis Interface
Specifications
Frequency range	10μHz – 50MHz
Measurement parameters	L, C, R, Z, phase, QF, tan (δ), series and parallel circuits
Basic accuracy	0.1% 1kHz 0.2% + 0.002% / kHz < 1MHz 0.2% + 0.0005% / kHz < 35MHz 0.2% + 0.001% / kHz < 50MHz
Measurement range	10nH to 10kH, 1pF to 1000F, 1mΩ to 500MΩ
Phase accuracy of internal shunts	Low shunt 5Ω, 0.1 degree + 0.01 degree / kHZ Medium shunt 50Ω, 0.05 degree + 0.005 degree / kHz High shunt 5kΩ, 0.05 degree + 0.005 degree / kHz 极 High shunt 500kΩ 0.1 degree + 0.05 degree / kHz
Accessories and ports
Accessories
Probes	4-channel and 2-channel versions. 6 off 3 channel version
Results in	Output, RS232, power
Software	CommView， PSMComm2
Documentation	Calibration certificate, user manual
Ports
RS232	Baud rate up to 19200, RTS/CTS flow control
Analog output	Bipolar ±10V, any measurement function – BNC
Sync output	Pulse sync to generator
Expansion port (N4L accessory)	2 15-pin female D-type
LAN (standard)	10 / 100 base-T Ethernet auto-sensing RJ45
GPIB (standard)	Compatible with IEEE488.2
System specifications
Data logging
Features	Up to 4 measurement functions, user selectable
Data logging window	Starting from 10mS, there is no gap between each log
Memory	RAM or non-volatile memory, up to 16,000 records
General
Display	320 x 240 QVGA full-color TFT, white LED backlight
Dimensions	130H x 400w x 315D mm (excluding feet)
Weight	3.3 kg (2 channels), 3.5 kg (3 channels)
Program storage	100, position 1 loaded on power-up
Sweep store	2000, all parameters in any sweep function
Remote operation	Full function, control and data

Operating temperature	-5 to 50°C
Storage temperature	-10 to 60°C
Relative humidity range	20 to 90%, non-condensing
IP protection of input and output	IP30 - CEI EN 60529
Maximum altitude	2,000 meters
Power supply	90-264Vrms 47-63Hz max 30VA
CMRR	140db @ 240Vrms – 50Hz， 120db @ 100Vrms – 1kHz
Guarantee	1, 3 years

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PSM3750 options, software and accessories

Communication interfaces:

Standard: RS232, USB, LAN, GPIB

Probe and probe accessory options:

IAI Impedance Analyzer 2 Interface + Kelvin lead set
IAI Kelvin clipAxial and radial component connections for LCR measurement
TA107Transimpedance amplifier
TTF35Telecom test fixture
HVx100 2500VAttenuator probe

Injection transformer option

No injection transformer is needed because the PSM3750 has a fully isolated generator

Current measurement options:

Impedance measurement can also be performed via an external shunt; this impedance analysis method does not require IAI2; the LPA power amplifier provides the test signal. ViaPSM3750CH1 measures the voltage across the DUT, viaPSM3750CH2 measures the current through the N4L HF shunt.

HF010m 10mΩ/20Arms 1MHz bandwidth shunt
HF100m 100mΩ/6Arms 1MHz bandwidth shunt
HF470m 470mΩ/3Arms 1MHz bandwidth shunt
HF01A1Ω/1Arms 1MHz bandwidth shunt

Port accessory options:

USB to 9-pin RS232 serial converter

Carrying case:

PSM3750 soft carrying case – black nylon padded case with accessory compartment, handle and strap

Rack mount kit option:

PSM3750 rack mounting kit – 19“ rack mounting kit, including brackets and fixing screws for PSM3750

Calibration and documentation:

Standard recalibration – PSM3750
Standard Recalibration – PSM3750 + IAI
External laboratory ISO17025 UKAS calibration + standard calibration – PSM3750
Spare user manual – hard copy of user and communication manuals

PC software (free of charge under conditions):

PSMComm– PSM PC interface software, database, graphics, real-time data display (PSMComm2 v1_2 PDF，2.79Mb）
PSMSoft – LabVIEW executable with PSMincluding Nyquist simulation

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N4L PSM3750 Frequency Response Analyzer 10μHz–50MHz Isolated Input (500Vpk)

PSM3750 Frequency Response Analyzer: 10 μHz–50 MHz, isolated inputs (500 Vpk), isolated AC + DC coupled generator

Features and Benefits

PSM3750 options, software and accessories

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