MICRORAD Italy

Power frequency comprehensive field strength tester HC100 (DC-100kHz)

NHT 310 + PROBE 33C

The HC-100 power frequency comprehensive field strength tester is a handheld, portable, and cost-effective testing device specially customized by the Italian MICRORAD manufacturer for the latest domestic standard GBZ/T 189.3-2018 "Measurement of Physical Factors in the Workplace Part 3: Electric and Magnetic Fields from 1Hz to 100kHz" by the Ministry of Health. It can measure low-frequency electromagnetic radiation. The main unit is equipped with a Probe 33C low-frequency electromagnetic field three in one probe (DC-100kHz), and there is no need to replace the probe. Only the main unit button operation is needed to switch and test the strength of the electric field, magnetic field, and static magnetic field at DC-100kHz, as well as switch between different units for measurement and reading. The probe provides separate output of three-dimensional (x&y&z) spatial components.

The host testing operation is very simple. After connecting the probe to the host and turning it on, it will automatically recognize the probe for measurement reading. It can also be equipped with probes of other frequency bands for measurement. The operation is simple and can be completed independently without the need for professional engineers. On site measurement can store measurement data for a single time or set the monitoring duration for continuous monitoringTesting,By connecting to the host through the supporting software, Excel data can be exported to the computer for secondary analysis. HC-100 meets the precise detection requirements in various complex electromagnetic environments in real life, and is very suitable for third-party testing units to carry out low-frequency electric and magnetic field measurements related to alternating current transmission projects, substations, power plants, high-voltage lines, railway transportation traction power transportation equipment, industrial furnaces in industrial sites, welding and heating workplaces, and other power related fields.

Typical Applications

>Static magnetic field (such as the Earth's magnetic field)

>Electromagnetic field measurement of industrial furnaces, welding systems, tempering and other industrial equipment;

>Electromagnetic field measurement of equipment such as diathermy, medical, radio frequency emission, NMR (nuclear magnetic resonance), etc;

>Measurement of power frequency electromagnetic fields in power plants, high-voltage transmission lines, power substations, and related systems;

>Measurement of low-frequency electric and magnetic fields for traction power equipment in railway and ground transportation systems (EN 50500);

>Electromagnetic radiation detection of household appliances such as induction cookers, microwave ovens, and electric fans (EN 62233);

Product Features

>Host DC-6.5GHz ultra wideband measurement range>static magnetic field and high/low frequency electric/magnetic field measurement

>Multiple electric, magnetic, and electromagnetic field measurement probes can be selected for continuous sampling data recording of more than 21504 pieces

>About 72 hours of battery life (backlight off)>about 30 hours of continuous data sampling and recording time (5-second interval)

>Durable magnesium aluminum alloy shell>Multi thread monitoring and logging function

>Integrated temperature sensor and GPS>Free Microlink dedicated software for analyzing measurement data

>X. Y, Z three-axis analog output>provides optical/USB interface

Power Frequency Comprehensive Field Strength Kit - Packing Information

>NHT-310 host>The host has a built-in GPS receiver and thermometer

>Low frequency electromagnetic field three in one probe PROBE 33C>Host built-in lithium battery

>Original calibration certificate, user manual (electronic)>Power adapter

>Fiber optic cable (10m)>Microlink free software

>Optical port/USB converter>Black heavy-duty packaging box

Multi threaded monitoring/data recording

>Single point storage data: Single point measurement data can be saved at any time through the "STORE SINGLE" button on the host, up to 432 sets of single point data can be saved. The data includes current measurement host information, probe information, date, time, GPS coordinates, ambient temperature, X/Y/Z single axis measurement values, real-time field strength values, average values, maximum values, units, and other information.

>Long term monitoring and storage of data: By using the host combination key "SHIFT"+"MONIT" function, data will be stored after the countdown ends. The default time interval is 5 seconds (the interval time can be set through software), and each set of data contains 8 data items, with a maximum storage capacity of 21504 sets of data. This function is very suitable for long-term monitoring of low-frequency electromagnetic waves (such as high-voltage transmission and transformation lines, substations, etc.), and can help users observe the long-term impact of these low-frequency electromagnetic waves on the environment. Users can exit this mode by pressing any key or automatically exit when full.

>Real time remote control: The host is integrated with fiber output ports and PC Microlink remote control software, which is suitable for users to effectively avoid any other interference factors affecting the measurement results during the measurement process (such as power frequency electric field strength measurement, EMC testing in anechoic chambers, etc.). The software has a complete host display unit that can simultaneously display measurement values and historical measurement data curves. In addition, the data saved in the instrument can be downloaded to a PC for more advanced analysis at any time through software.

Free Microlink software package

Microlink software is an official standard powerful control and data processing software with a simple and intuitive display interface. Through the software, users can easily achieve remote control, data reading, and storage of the host.

The Microlink software has comprehensive remote control functions. Users can connect their computers through the host's fiber optic interface using optical cables, and use the remote control function of the Microlink software to minimize the impact of human interference on measurement results.

Software Open Interface Remote Connection Control Interface

Users can download measurement data stored in the host memory (including ISO isotropic values, X/Y/Z uniaxial values, maximum values, time averages, humidity values, GPS coordinate values, dates, times, and probe data used) in Excel spreadsheet format to their computer through the Microlink software. With the comprehensive and powerful data analysis functions of the Microlink software, users can draw various data charts and conduct more detailed evaluations. Users can also configure the parameters of the host and perform firmware upgrades through the Microlink software.

Main functions of Microlink software:

>Real time remote control host

>Measurement data download and display

>Graphic data display

>View the maximum and minimum field strength values in the graph

>Viewing X/Y/Z Uniaxial Field Strength Values in Graphics

>View real-time values and average values in graphics

>Set host parameters

>Data Everywhere (Excel)

>Firmware upgrade

Low frequency electromagnetic radiation measurement applicable to workplaces and public environments

Applicable standards and measurement methods:

>National Environmental Protection Administration GB 8702-2014_ "Regulations on Electromagnetic Radiation Protection"

>Guidelines for Radiation Environmental Protection Management - Electromagnetic Radiation Monitoring Instruments and Methods (HJ/T10.2-1996_) issued by the State Environmental Protection Administration

>National Environmental Protection Administration HJ/T10.3-1996_ "Methods and Standards for Environmental Impact Assessment of Electromagnetic Radiation"

>National Environmental Protection Administration HJ 24-2014_ "Technical Guidelines for Environmental Impact Assessment - Transmission and Transformation Projects"

>State Environmental Protection Administration HJ 681-2013_ "Electromagnetic Environment Monitoring Methods for AC Transmission and Transformation Projects (Trial)"

>GBZ 2.2-2007_ Occupational Exposure Limits for Hazardous Factors in the Workplace by the Ministry of Health of China

>GBZ/T 189.3-2018_ "Measurement of Physical Factors in the Workplace Part 3: Electric and Magnetic Fields from 1Hz to 100kHz" by the Ministry of Health of China

>General Administration of Quality Supervision, Inspection and Quarantine GBT 18204.1-2013_ "Methods for Health Inspection of Public Places Part 1: Physical Factors"

>EU EN 62233-2008 "Measurement methods for electromagnetic fields of household and similar electrical appliances exposed to the human body"

>European Union EN 50500-2008 "Environmental measurement standards for human exposure to railway electronic and electrical equipment"