SFRA45 스위프 주파수 응답 분석기
SFRA45는 5Hz ~ 45MHz의 대역폭을 가진 스윕 주파수 응답 분석기이며, SFRA45는 IEC60076-18을 완벽하게 준수하는 SFRA (Sweep Frequency Response Analysis) 분야에 완벽하게 호환되는 솔루션을 제공합니다 – 전력 변압기 부품 18 – 주파수 측정 응답.

내장형 컬러 LCD 스크린과 배터리로 작동되는 태블릿 스타일의 악기는 PC 소프트웨어의 유무와 상관없이 사용할 수 있습니다. 사용 가능한 전용 소프트웨어 (SFRAComm)를 사용하면 사용자는 과거 변압기 스윕을 불러 와서 현재 스윕 분석과 비교할 수있는 데이터베이스를 만들 수 있습니다. 이는 가장 일반적인 스윕 주파수 응답 분석 기술인 “지문 비교”와 다른 모든 비교 기술을 수행 할 수있는 기능을 제공합니다.


Features & Benefits
0.02dB Basic accuracy Frequency range 5Hz to 45MHz
Full Colour VGA Display RS232, LAN and USB
PC Software package included 2Hr Battery Life
Leading Phase Accuracy Truly Portable Measurements
LCR Mode Save Data to external USB
50Ohm or High Impedance Input Scope Function
Save Data to Database for comparison Supplied with all accessories and carry case


Measurement Specifications
Frequency Response Analyzer
Measuremnent Magnitude, Gain (CH1/CH2,CH2/CH1),
Gain (dB), Offset Gain (dB), Phase (º)
Frequency Range 5Hz – 45MHz
Gain Accuracy in dB 0.02dB ‹ 50kHz
0.02dB + 0.05dB / MHz < 5MHz
0.1dB + 0.04dㅠB / MHz < 45MHz
Phase Accuracy 0.05º < 10kHz
0.07º + 0.0009º / kHz < 5MHz
5.05º + 0.0001º / kHz < 45MHz
Frequency Source Generator
Measuremnent Real Time DFT, no missing data
Speed Up to 100 readings per second
Filter Selectable from 0.2 seconds
Resolution 5 or 6 digits
Input Impedance 50 Ohm or 1M Ohm High Impedance (Selectable)
Dynamic Range 120dB
LCR Meter
Functions L,C,R (AC), Q, Tan Delta, Impedance,
Phase – Series or Parallel Circuit
Frequency Range 5Hz to 5MHz
Current Shunt 50R Internal or External
Ranges Inductance
Basic Accuracy 0.5% + 2%/MHz
Sweep Capability All AC functions
Impedance Range 100m Ohm to 100K ohm
True RMS Voltmeter
Channels 2 (Ground Referenced)
Frequency Range 5Hz to 5MHz
Measurement AC, RMS, PEAK, CF, SURGE, dBm
Basic Accuracy (AC) 0.05% range + 0.05% reading + 0.1mV < 1kHz
0.15% range + 0.15% reading + 0.1mV < 10kHz
0.5% range + 0.5% reading + 0.025%/kHz + 0.4mV < 5MHz
Signal Generator
Type Direct Digital Synthesis , Single Frequency or Sweep
Frequency 5Hz to 45MHz
Waveforms Sine, Square, Triangle, Ramp, White Noise
Accuracy Frequency 5ppm over all temperature range
Amplitude ±5% < 10MHz
Amplitude ±10% < 45MHz
Impedance 50 Ohm ± 2%
Scaling 1 x 10^-9 to 1 x 10^9
Output Level 50mVpk to 10Vpk
Input Ranges
Inputs 2 x 10Vpk
Connectors Ground referenced BNC
Coupling AC
Max Input 10Vpk from Earth
Input Ranges Peak ranging 1mV, 3mV, 10mV, 30mV, 100mV, 300mV, 1V, 3V, 10V
Scaling 1 x 10^-9 to 1 x 10^9
Ranging Full auto, Up only or Manual
Input Impedance 50 Ohm or 1M Ohm High Impedance Selectable
Instrument Accessories
Probes 2 x Probes
Leads 3 x BNC to BNC (Output, CH1, CH2), RS232, Power
Software CommView, SFRAComm
Documentation Calibration Certificate, User Manual
Newtons4th SFRA Transformer Connection System
Bushing Clamps 2 x Bushing Connection Clamps
BNC Cable Reel N4L 18m Cable reel (Signal, CH1, CH2)
Earth Braid 2 x 5 metre Earthing Braid
Earth Clamps 2
Spare Earth Braid 2 x 500mm
USB Memory Stick 2 GB
Functions FRA, Impedance
Steps Up to 2000 Steps
Window From 50ms with no gap between each log
Memory 1 GB Internal or External USB
Display 5.7″ 1/4VGA Colour high brightness backlit
Dimensions (Instrument) 305H x 230W x 45D mm “Tablet Style”
Weight (Instrument) 2.7Kg
Dimensions (Carry Case) 760mm x 420mm x 150mm
Weight (Full system including case) 14.9Kg
Program Stores 100, Location 1 loaded upon power up
Sweep Stores 2000, all parameters in any sweep function
Remote Operation Full Capability, Control and Data
Operating Temperature -5 to 50ºC
Storage Temperature -10 to 60ºC
Relative Humidity Range 20 to 90% Non-Condensing
IP Protection of Inputs and Outputs IP30 – CEI EN 60529
Max Altitude 2,000 Metres
Power Supply 9-18V @ 3A, AC adapter or 12V dc from car or external batteries
Warranty 3 Years


Application Notes and Related Articles
APP024 – Sweep Frequency Response Analysis of Power Transformers Typical Test Sequences IEC60076-18.pdf


SFRA45_Brochure PDF, 1,725Kb
SFRA45 User Manual v2_09 PDF, 825kb
SFRA45 Comms Manual PDF, 576kb
SFRA45 – Quick Measurement Guide PDF, 1,020kb


SFRA45 Options, Software and Accessories
Communications Interfaces
Standard: RS232, LAN, USB
SFRA45 Accessories
SFRA Connection Clamp Set (Standard)
SFRA 18m N4L Cable Reel (Standard)
SFRA Earth Braids (Standard)
SFRA Earth Clamp set (Standard)
USB Memory Stick for data storage (Standard)
BNC – BNC Connection Cables + BNC T-Piece (Standard)
SFRA45 Flight Case (Standard)
Battery Charger (Standard)
Vehicle Battery Charger Lead (Standard)
Vehicle Battery Charger Lead (Standard)
Customer Cable Reel Length up to 50m (Option)
SFRA Standards Compliance
Compliant to IEC60076-18 – Sweep Frequency Response Analysis of Power Transformers (See App note: App_note)
Port Accessory Options
USB to 9 Pin RS232 Serial Converter
Carry Cases
SFRA Hard Flight Case – SFRA45 hard carry case, ideal for aircraft hold storage (supplied as standard)
Calibration and Documentation
Standard Recalibration – SFRA45
Spare set of user manuals – Hard copy of user and communications manual