Description
Schloder CAL 1250 50/60 Hz Magnetic Field Calibrator
The magnetic field calibration device uses a triaxial Helmholtz coil to generate a three dimensional magnetic field. The CAL 1250 has three independent channels which each consists of an internal generator and a power amplifier.
Performance feature
- Compact device
The calibrator CAL 1250 is a compact device for generating and measuring electric fields at 50 Hz or 60 Hz. Signal generator, 3 precision power amplifier and a voltmeter are integrated. Field strenghts in the range of 10 mG to 1200 mG can be generated. - Definition of the measurement results
Verifications are possible in the observation by A/m - µT - mG - dB(µA/m) or dB(pT). - Scope of delivery
The three-dimensional Helmholtz coil MGA_HCST_50-28, the sensor coil MGA_LS 133 and a comfortable control software are included. The connection to the computer via USB.
SPECIFICATIONS | |
Generator | |
Number of channels | 3 |
Frequency range | 50 / 60 Hz |
Phase resolution | 1 ° |
Signal | Sine wave |
Amplifier | |
Number of channels | 3 |
Output voltage | ±15 V |
Output current | 1,5 A |
Frequency range | 15 Hz - 50 kHz |
Voltage input (loop sensor) | |
Frequency range | 3 Hz - 200 kHz |
Input impedance | 2 kOhm |
Connector | XLR, balanced |
Max. input voltage | 100 mV |
Gain | 40 dB |
Loop Sensor | |
Diameter | 133 mm |
Shielding | Electrostatic |
Correction factor | see calibration sheet (50 Ω / 600 Ω / 1MΩ) |
DC resistance | ~ 10 Ω |
Inductance | ~ 340 µH |
Connector | XLR |
Triaxial Helmholtz Coil System | |
Edge length / Coil separation X axis Y axis Z axis | 50 cm / 28 cm 46 cm / 25,8 cm 42 cm / 23,6 cm |
Number of turns (per coil) | 26 |
Min field strength | 10 mG |
Max field strength | 3000 mG |
Resolution of field strength | 0,1 mG |
Field Homogeneity | ± 0,1% (sphere diameter < 100mm) ± 1,0% (sphere diameter 100mm - 200mm) |
Frequency range | DC - 10 kHz |
Nominal current | 5 A |
DC resistance | ~ 4 Ohm |
Inductance | ~ 15 - 20 mH |
Uncertainty | ± 1% |