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TM4830B Fluxgate Magnetometer

The TM4830B is a portable, multi-functional weak field measuring instrument, which can be matched with fluxgate sensors of various specifications and measurement ranges, including single-axis and three-axis fluxgate sensors, which can measure the weak magnetic field.
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  • TM4830B

  • TUNKIA

TM4830B Fluxgate Magnetometer

TM4830B Fluxgate Magnetometer

1 Summary

The TM4830B is a portable, multi-functional weak field measuring instrument, which can be matched with fluxgate sensors of various specifications and measurement ranges, including single-axis and three-axis fluxgate sensors, which can measure the weak magnetic field.


2. Features

Range: 0~ 2000 μT, various of probes are optional.

Measure XYZ component value, vector value and angle.

Mainframe voltage measurement up to 0.005%.

0.0015 % for the ultra-high precision version.

The noise of the low noise version is typically < 6 pTrms /√Hz.

Unit switch: μT, mG .

Switch 6 / 7 / 8-digits display.

AC or DC mode, and AC frequency display.

Relative measurement mode, offset value (Offset) input.

Alarm function of exceeding the upper / lower limit.

Max. / min. hold function.

Data statistical analysis and trend chart display.

The integration period (refresh rate): 0.5s to 100s.

(ultra-) High-accuracy probes support temperature compensation.

USB, LAN, RS 232 interface.

LCD touch screen.


3. Application

Measuring low magnetic field.

Geological prospecting.

Fragmentation processing, security check.

Fault location, research experiment.

Magnetic shielding evaluation.

Calibrating low magnetic field sources.

Detecting magnetic resonance meter.

Detecting electron microscope.

Detecting Magnetic field drift.


4. Specifications

4.1 Main Unit (Voltage Measurement)

Range

0 ~ ± 10V

Accuracy

±(ppm of reading + ppm of range) [1]

DC

0.003 % + 0.002 %

20 Hz~ 45Hz _

0.06 % + 0.04 %

45 Hz~1k Hz _

0.012 % + 0.008 %

DC Linearity

0.002 %

Display digits

8 digits display

Probe Supply Voltage

± 15V

Data Refresh Time

0.5 s ~ 100 s adjustable

Remark

Note [1] : (ppm = parts per million) (e.g., 10ppm = 0.001%).


4.2 Fluxgate Probe

Miniature Fluxgate Probe

Probe Model

Number of Axes

Range

Noise

/√Hz @ 1Hz

Linearity

Frequency Response

( -3dB)

TM1200-100μT

single-axis

100 μT

1.5nTrms

≤ 0.5 %

DC to 400 Hz

TM1200-500μT

single-axis

500 μT

1.5nTrms

≤ 0.5 %

DC to 400 Hz

TM1200-1000μT

single-axis

1000 μT

1.5nTrms

≤ 0.5 %

DC to 400 Hz

TM1200-2000μT

single-axis

2000 μT

1.5nTrms

≤ 0.5 %

DC to 400 Hz

TM1230-100μT

three-axis

100 μT

1.5nTrms

≤ 0.5 %

DC to 400 Hz

TM1230-500μT

three-axis

500 μT

1.5nTrms

≤ 0.5 %

DC to 400 Hz

TM1230-1000μT

three-axis

1000 μT

1.5nTrms

≤ 0.5 %

DC to 400 Hz

TM1230-2000μT

three-axis

2000 μT

1.5nTrms

≤ 0.5 %

DC to 400 Hz


High Precision Fluxgate Probe

Probe Model

Number of Axes

Range

Noise

/√Hz @ 1Hz

Linearity

Frequency Response

( -3dB)

Orthogonality

TM1200- H -100μT

single-axis

100 μT

≤ 10pT rms

≤ 0.01 %

DC to 1kHz

——

TM1200- HL -100μT

single-axis

100 μT

≤ 6pT rms

≤ 0.01 %

DC to 1kHz

——

TM1200- HL -500μT

single-axis

500 μT

≤ 30pT rms

≤ 0.02 %

DC to 1kHz

——

TM1200- HL -1000μT

single-axis

1000 μT

≤ 50pT rms

≤ 0.02 %

DC to 1kHz

——

TM1230- H -100μT

three-axis

100 μT

≤ 10pT rms

≤ 0.01 %

DC to 1kHz

±0.2°

TM1230- HL -100μT

three-axis

100 μT

≤ 6pT rms

≤ 0.01 %

DC to 1kHz

±0.2°

TM1230- HL -500μT

three-axis

500 μT

≤ 30pT rms

≤ 0.02 %

DC to 1kHz

±0.2°

TM1230- HL -1000μT

three-axis

1000 μT

≤ 50pT rms

≤ 0.02 %

DC to 1kHz

±0.2°


Ultra-high Precision Fluxgate Probe

Probe Model

Number of Axes

Range

Noise

/√Hz @ 1Hz

Linearity

Frequency Response

( -3dB)

Orthogonality

TM1200-S-100μT

single-axis

100 μT

10 ~ 20pT rms

≤ 0.01 %

DC to 3kHz

——

TM1200-S-500μT

single-axis

500 μT

10 ~ 20pT rms

≤ 0.01 %

DC to 3kHz

——

TM1200-S-1000μT

single-axis

1000 μT

10 ~ 20pT rms

≤ 0.01 %

DC to 3kHz

——

TM1230-S-100μT

three-axis

100 μT

6 ~ 10pT rms

< 0.0015 %

DC to 3kHz

±0.1°

TM1230-S-500μT

three-axis

500 μT

6 ~ 10pT rms

< 0.0015 %

DC to 3kHz

±0.1°

TM1230-S-1000μT

three-axis

1000 μT

6 ~ 10pT rms

< 0.0015 %

DC to 3kHz

±0.1°

TM1230-SL-100μT

three-axis

100 μT

6pT rms

< 0.0015 %

DC to 3kHz

±0.1°

Note: [1] The user should indicate it in the order contract or technical agreement.

[2] The corresponding probe is selected according to the measurement of range.


4.3 Magnetic Field Measurement

Range

±100 μT

±500 μT

±1000 μT

±2000 μT

Resolution

0.01 nT

0.01 nT

0.1 nT

0.1 nT

Accuracy

±(ppm of reading + ppm of range) [1]

Ultra High Precision Version

0.12 % + 0.08 %

——

High Precision Version

0.3 % + 0.2 %

——

Micro Version

0.6% + 0.4

Remark

The accuracy is the combination of the host and probe.


5. General Specifications

Power Supply

AC ( 220 ± 22 ) V , ( 50 ± 2 ) Hz

Temperature Performance

Working temperature: 0°C~40°C;

Storage temperature: -20°C ~ 70°C

Humidity Performance

Working humidity: 40% ~ 85% R·H without condensation

Storage humidity: < 90% R H, no condensation

Weight

About. 5 kg

Interface

Fluxgate probe, USB, RS232, analog output, network port

Dimensions

190mm (W) × 300 mm (D) × 200 mm (H)


6. Ordering Information

TM4830B Fluxgate Magnetometer


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