Hioki 3145-20 Offers

Specially designed for on-site noise measurement, the Hioki 3145-20 Pro Noise HiLogger Search Tester with 9754 Clamp-Type Noise Sensor (Non-Contact) locates and develops countermeasures against noise interference.

HIOKI E.E. Corporation has developed the NOISE HILOGGER 3145-20 as a tool dedicated to the purpose of resolving serious electrical noise interference problems in their early stage. Noise sources such as devices that use inverters, electromagnetic emitters and radiated electrical noise from ever-faster computers will surely continue to proliferate. At the same time, because of the rapid growth of networks, the number of network-connected devices that generate interference in their environment because of noise ingress continues to grow.

The NOISE HILOGGER 3145-20 measures the noise levels and frequencies on telecom, power and grounding lines connected to electronic devices that may conduct noise. Noise is detected by the non-contact CLAMP-ON NOISE SENSOR Model 9754, so there is no need for concern with communications disruptions caused by conductor contact, electric shock from power lines or short-circuit accidents, even when measuring active circuits. In addition, unpredictable surges from causes such as lightning and contact switching can be detected without fail.

Long-term and periodic noise fluctuations can be captured by the logging function. Data being recorded is displayed on the instrument's color LCD as a time-series graph. The bundled CD contains the Data Viewer for 3145-20 program for viewing time-series data on a personal computer, ideal for investigating the effects of interference countermeasures after noise is discovered.

Electrical noise interference is a major cause of trouble with electronic device such as damage, malfunctions and communications disruptions. Model 3145-20 is an on-site noise measurement instrument designed to measure the conducted noise that appears on power, earthing and telecom lines resulting from ingress of radiated noise. Using the 3145-20 can shorten the time required for noise investigation and development of countermeasures suppression.

By employing a non-contact noise sensor, investigation of noise affecting electronic devices can be performed simply, in the active state. The instrument simultaneously displays the noise levels in multiple contiguous frequency bands, and a peak detection function can be used to reliably capture one-shot noise surges such as from lightning, contact switching and ESD. By recording and displaying noise measurements as a time series, the timing and other characteristics of the noise can be seen at a glance.

Advanced Features:

• Lightweight and compact, for easy on-site noise investigations
  • Until now, large and expensive measurement instruments were required for noise analysis, making on-site noise investigations often problematic. Model 3145-20 is a small, lightweight instrument dedicated to noise measurement and especially suitable for on-site noise investigations.
• Non-contact noise sensor
  • The non-contact noise sensor eliminates the need to worry about electric shock or communications disruption, even when measuring noise on active power, telecom and earth lines.
• Measurement frequency range corresponds to most radiated electromagnetic noise
  • The 3145-20 measures noise over the broad range of 10 kHz to 100 MHz, so it is able to measure a wide variety of noise.
• Noise levels displayed on a large LCD
  • Detected noise is separated into seven contiguous bands, each of which is displayed simultaneously in a bar graph, so you can see the nature of the noise at a glance.
• One-Shot noise detection
  • One-shot noise such as surges and ESD noise, which are hard to detect with a spectrum analyzer or digital oscilloscope, are reliably captured by the peak detection function.
• Capable of measuring earth line noise
  • Because the HiLOGGER measures noise current, noise on earth lines that had been difficult to measure can now be measured easily.
• Records noise level fluctuations over time
  • The HiLOGGER records and displays fluctuations of noise over time in seven frequency bands, ideal for long-term noise monitoring and investigating times of event occurrence. It can also monitor unpredictable noise events. Noise fluctuations over time can be displayed as a time-series graph on the instrument's LCD.
• Alarm function
  • An alarm sounds when the noise level exceeds a specified threshold. Alarm occurrence levels and times are automatically recorded, so the dates and times of rare and unpredictable noise interference events are revealed.
• Network connection
  • A LAN terminal is included for connection to an intranet or to the Internet. Remote control of the instrument and measurement monitoring can be performed using a Web browser such as Internet Explorer. In addition, alarm notifications can be sent by e-mail.
• Bundled PC application program
  • Noise measurement data recorded on the 3145-20 can be viewed on a personal computer. Additional program capabilities include a search function for finding measurement data according to specified criteria, time-series graph printing and CSV format conversion.

Primary Application:

• Investigating and developing countermeasures for malfunctions in electrical facilities, electronic devices and servers
  • Use to investigate the cause of malfunctions and damage. After taking countermeasures, use the HiLOGGER for continuous monitoring, to help eliminate future noise interference.
• Investigating communications interference
  • Use to investigate the cause of communications disruptions such as network connection problems and slow communications throughput.
• Monitoring electrical noise in production line facilities
  • Electrical noise can cause malfunctions in the facility that result in faulty products or even production line shutdowns. By monitoring the noise, damage can often be minimized.
• Other applications include electric facility construction, facility maintenance, building and factory maintenance and inspection, automobile-related fields, power companies and communications-related fields the telecommunications industry.