GM08 Gaussmeter with PC interface – ideal for a wide range of applications

GM08 gaussmeter with its PC interface and high-speed analogue output make this the ideal choice for a wide range of applications including production testing and laboratory use.

Widest range of measurements available from a hand-held Gaussmeter*
DC accuracy of better than ±0.5% standard probe and Gaussmeter
Thin semi-flexible transverse probe included
Wide range of probes available
Remembers previously used settings
USB and RS232 connections allow control from PC and easy upload of data
Store and upload measurements, up to 100 at a time
Analogue output to connect to oscilloscopes and ADCs via optional BNC connector
Dot matrix display with menu drive functions
Powered by 4x AA cells, external power connection also available

The GM08 Gaussmeter is ideal for those needing to measure magnetic field strength and magnetic flux density in everyday applications or in a specialised laboratory environment as the GM08 has a range of interfaces to connect to PCs, ADCs and Oscilloscopes via the analogue output.

With a Hirst Gaussmeter, you can rely on a product that has been developed with durability, precision and usefulness as core qualities. The ability to drive the GM08 via PC also means you can use the Gaussmeter as a desktop device or quickly download or upload data. With a one-year guarantee and calibration certificate included, the GM08 Gaussmeter is ready to use and simple to operate.

Some example applications include:

Computer disk Drive Actuators
Loudspeaker Air Gaps
Electric Motor air gaps
Magnetic ‘strength’ testing for food industry separators
Spot checking magnetic field strength for Non-destructive testing (magnetic particle inspection)
Verifying compliance with IATA, IACO and FAA regulations on magnetism from packages to be shipped by air with High Sensitivity probes and the AFG100 Fluxgate probe
Non-destructive Testing (Magnetic) with Rugged Transverse Probe option TP002R
Goods inward and Quality Assurance Inspection

The GM08 comes with the TP002 Transverse Hall Probe as standard, however, you may need an additional probe to suit your application. See our range of transverse and axial probes here.

GM08 Features

Unit Conversion – Measurements can be taken in any of the magnetic units. Saved and Held readings can be automatically converted between measurement units.

Remote PC control – The GM08 offers the unique ability to remote -control the Gaussmeter through a PC via USB or RS232

Non-Volatile memory – Any settings and recorded measurements are automatically stored to ensure that every time you switch the Gaussmeter on, it is ready to use with the same settings as previously used.

Holding and Storing measurements – a unique feature on the GM08 allows users to HOLD or STORE measured values. Users can set the hold or store functions in GM08 menu and press the conveniently situated button on the Hall probe to capture the reading without looking away from the area of concentration. In the STORE setting, The GM08 can record up to 100 measurements. These values can later be RECALLED, either on the Gaussmeter or via USB/RS232 with the GM08.

Easy reports - The GM08 has the added advantage of storing and uploading not only the measured values, polarity, measurement units and measurement function, but also the time at which the measurement was taken. Data can easily be downloaded to excel, open office spreadsheets, or to a CSV format file, taking the hassle out of creating records.

Battery save – The operator can disable or select various times for the automatic POWER DOWN. Power downs always give warnings, which can be stopped.

Zeroing – When the Gaussmeter needs to be zeroed, a zero flux chamber and instructions are provided for easy nulling. Two simple routines can reset the Gaussmeter reading to zero or relative zero to the range you are on.

Full Measurement Range

Normal Sensitivity Probe TP002 (supplied) AP002 (option)	High Sensitivity Probe TP002HS (option) AP002HS (option)	Fluxgate Probe AFG100 (option)	Tesla	Gauss	Amp/m	Oersted
Range 1			3.000 T	30.00 kG	2388 kA/m	30.00 kOe
Range 2			300.0 mT	3.000 kG	238.8 kA/m	3.000 kOe
Range 3	Range 1		30.00 mT	300.0 G	23.88 kA/m	300.0 Oe
Range 4	Range 2		3.000 mT	30.00 G	2.388 kA/m	30.00 Oe
	Range 3		300.0 µT	3.000 G	238.8 A/m	3.000 Oe
		Range 1	99.99 µT	999.9 mG	79.60 A/m	999.9 mOe
		Range 2	9.999 µT	99.99 mG	7.960 A/m	99.99 mOe
		Range 3	999.9 nT	9.999 mG	796.0 mA/m	9.999 mOe
		Range 4	99.99	999.9 µG	79.60 mA/m	999.9 µOe

Accuracy

With Hirst products, you can expect excellent reliability and accuracy. During manufacture, the accuracy of nuclear magnetic resonance is used to determine the irregularities and non-conformities of the GM08 and GM07 with the Hall Probe. This data is stored and used mathematically to automatically correct readings taken by the GM08 and GM07. This enables very linear and accurate measurements to be obtained. Every GM08 and GM07 comes with a certificate of calibration valid for one year.

Repeatability	±0.1%	Margin for change over repeated measurements
Traceability	±0.8%	Calibrated to standards traceable to the National Physical Laboratory
Accuracy	±0.5%	Margin of difference from true reading, probe AND Gaussmeter

Software

Specialized software comes as standard on CD with your Gaussmeter pack. It can also be downloaded. The software, which is compatible with Windows, allows the user to control the Gaussmeter remotely, export measurements and stored data via USB or RS232 interfaces. Data can be exported to Excel or OpenOffice spreadsheets or to a CSV format file.

Meter
Standard Transverse Hall Probe
Probe protection
Zero Flux Can
USB Cable
Calibration Certificate
Case

Accuracy
Repeatability	±0.1% Margin for change over repeated measurements
Traceability	±0.8% Calibrated to standards traceable to the NPL National Physical Laboratory (UK)
Accuracy	±0.5% Margin of difference from true reading, probe AND Gaussmeter.
Full Specifications
Frequency Range	DC and 15Hz to 10 kHz (-1%)
Display Rate	3 readings per second
Functions	DC, DC Peak, AC RMS, AC Peak, AC Max
Display	Dot Matrix Graphics LCD
Memory Type	Non-volatile
Temperature Coefficient	Better than ±0.1% of reading/ºC including probe
Battery Type	4x AA cells, longlife, 1.5V Alkaline (not supplied)
Optimum Operating Temperature	0ºC – 50ºC (30ºF - 125 ºF)
Optimum Storage Temperature	20ºC – 70ºC (70ºF – 150ºF)
Language Modes	English, French, German, Italian, Portuguese, Spanish
GM08 Advantages
USB and RS232	Used for data transfer and remote PC control. USB 1.1 compliant.
Analogue Output	± 3 Volts full scale - linearised
Time Keeping	Stored data is time and date stamped
External PSU Socket Requirement	Included -5V/6V (100 - 500 mA) External PSU not supplied