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
Advanced Multifunction Calibrator Advanced Electrical Reference Standards Electric Vehicle (EV)Charging Facility Tester AC/DC Standard Source /Meter Single-phase/Three-phase Standard Meter Magnetic Parameters Measurement and Calibration Magnetic Material Testing Equipment Electrical Steel Testing Equipment