Magmeter Model GM04
The Magnaflux microprocessor
controlled Magmeter offers sophisticated use, measuring functions in simple to
use, menu driven, hand-held package.
The Magnaflux GM04 Microprocessor Controlled Handheld
Magmeter represents a significant improvement in functions, features and
performance in todays market. The GM04 incorporates an Analogue Peak Detector
for the DC and AC peak functions. This, coupled with the Microprocessor
operation of the GM04 means that fast response is possible with digital
stability (fast pulses / no drop in readings).
Measurement Functions:
The GM04 can measure:
- DC: DC
magnetic field measurement
- DC PEAK:
Maximum positive peak reading of the DC field
- AC RMS: True
Root Mean Square (RMS)
- AC RMS. MAX:
Maximum true RMS
- AC PEAK: Maximum positive peak value
Measurement Units:
The GM04 can measure Magnetic Flux Density or Magnetic
Field Strength. The menu system enables the Operator to easily choose between
Tesla, Amps/m (SI units), Gauss and Oersted (cgs units).
Data Capture:
The GM04 can HOLD measured values by pressing the Hall
Probe button. Pressing the button again releases HOLD (when enabled). The GM04
can also STORE measured values. These values can later be RECALLED.
Range Changing:
If the Operator wishes to change ranges, the GM04 has a
button dedicated to this function. No use of menu is required.
Utilities:
The GM04 has a number of
UTILITIES options allowing the Operator to disable or select various times for
the automatic POWER DOWN. Also nulling routines can be selected. The GM04 also
has the facility to operate its menu structure in English, French, German, Italian,
Spanish and Portuguese.
Applications:
The GM04 is ideal for inspection and measurement of
magnetic flux density of magnets and magnet assemblies in both goods inwards
and quality assurance environments.
Applications include:
Non-Destructive Testing (Magnetic), Computer Disk Drive Actuators, Loudspeaker
Air Gaps, Electric Motor Air Gaps (including Pancake and Permanent Magnets),
Transformer Stray Field Measurements, Magnetiser and Demagnetiser Field
Measurements, Bending Magnets, Goods Inward and Quality Assurance Inspection,
etc.
Specifications:
Auto and Manual Ranging:
Range 1: 0 –
to more than 3 Tesla, resolution 1 milliTesla
Range 2: 0 –
299.9 milliTesla, resolution 100 microTesla
Range 3: 0 –
29.9 milliTesla, resolution 10 microTesla
Range 4: 0 –
2.999 milliTesla, resolution 2 microTesla
Measurements can be made in
Tesla, Gauss, Amps/m or Oersted
(1 mT = 10 Gauss = 0.796 kA/m)
Accuracy (at 20o C) +/- 1%
(DC) Traceable NPL
Reproducibility +/- 0.5%
Temperature Coefficient:
Better than +/- 0.1% of reading /0o C including probe
Frequency Range: DC
and 15 Hz to 10 kHz
Averaging Time Constant: 100
milliseconds
Functions: DC,
DC Peak, AC RMS, AC RMS MAX, AC Peak
Display: 2
Line, 16-character dot matrix LCD
Display Sampling
Rate: 3/sec (approx)
Facilities: Store
and Recall on 0 – 99 samples. Hold facility. Analogue Peak with digital
storage. Auto and Manual ranges. Automatic reading conversion between different
units. Operating set up at time of power-down is stored and recalled
automatically at power on. Utilities, etc. Functions are selected with an easy
to use menu.
Operating Temp. Range: 0o C
to +50o C
Storage Temp. Range: -20o C
to +70o C
Battery Type: 9V
Longlife Alkaline (Duracell MN1604) or similar Battery Life Approximately 15
hours continuous operation. Auto Power-down after 1, 4 or 10 minutes or can be
disabled, all under menu control
Dimensions: Length 196 mm x Width 100 mm x Height 40 mm
Weight: (including battery) 400 g (not including probe)