High-stability power supply - 200 V / 60 A / 12 kW
High stability current source
Available in unipolar or bipolar configurations, our power supplies may be considered for replacement or modernization projects involving installations currently equipped with ER 083, ER083, or ER083CS models, particularly for X-band and Q-band EPR/ESR spectroscopy.
The suitability and compatibility of each solution are assessed on a case-by-case basis according to the exact configuration of the existing system. No universal or plug-and-play compatibility is claimed.
Magnetic field regulation can be performed using a Hall-effect probe or NMR measurement with NMR20, NMR25-1, and NMR25-4 teslameters. Depending on the system configuration and operating conditions, these solutions can provide sub-ppm absolute field regulation.
We also offer adaptable or custom-made probe holders for a wide range of electromagnets, including ER 074-type models. Compatibility is individually validated for each installation.
Important notice: Bruker and the ER 083, ER083, and ER083CS product references are mentioned solely to identify third-party equipment that may be considered for a replacement or modernization assessment. Our power supplies are independently designed and manufactured and are not original Bruker products. Our company is not affiliated with, authorized by, endorsed by, or sponsored by Bruker. All third-party trademarks and product names remain the property of their respective owners.
Technical specifications
Configuration: unipolar or bipolar, with four-quadrant operation in the bipolar version
Regulation modes: current or magnetic field
Maximum output current: 60 A
Maximum output voltage: 200 V
Maximum output power: 12 kW
Available stability classes: 50 ppm, 10 ppm, 5 ppm, or 1 ppm
Analog regulation: ultra-low noise and high stability
Control: external analog or internal digital
Internal digital control: two 20-bit DACs, one operating over the 100% range and the other over the 1% range, providing an effective signed 26-bit resolution
Internal control resolution at 60 A: less than 2 µA, in both unipolar and bipolar versions
Digital current readback: ultra-low-noise 24-bit ADC
Readback resolution: 10 µA
Digital current setpoint increment: 1 mA
Field regulation: Hall-effect or NMR-based using NMR20, NMR25-1, and NMR25-4 teslameters
Digital interfaces: SCPI commands over RS-232 and Ethernet, Modbus protocol available
Analog interfaces: ±10 V readback, ±10 V setpoint input, status signals, interlocks, and analog power-enable control
Red: Internal reading from CAYLAR porwer supply / Blue: External independent reading / Green: Internal Temperature
Technologies
| Current sensor | SHUNT or 0-FLUX DCCT |
| Magnetic field sensor | HALL or RMN (option) |
| Technology | with or without any switched mode power supplies |
| Control loop | Analogic and digital |
| Speed ramp control (mA/s) |  |
| Thermostatically controlled electronics |  (1ppm Option) |
| Setpoint resolution (I, U, B) | 2 x DAC 20-bit - Down to µV |
| Resolution measurements (I, U, B) | True ADC 24-bit |
Interfaces and control
| Drivers |  |
| MODBUS | |
| Ethernet | |
| RS232 | |
| External setpoint and analog I, U & B copies | |
Stabilityhttps://wumetiers.wysiup.net/v9/engine9/admin/images/popup/valider.png
Class : 50 ppm, 10 ppm, 1 ppm, sub ppm with NMR Field Regulator
| Class | 1 ppm | 10 ppm | 50 ppm |
| Ripple and noise | 1 mV eff + 10-6 Vn | 2 mV eff + 10-5 Vn | 3 mV eff + 10-4 Vn |
| High frequency noise | — | — | — |
| Temperature coefficient | <1 ppm / °C | <2 ppm / °C | <5 ppm / °C |
| Absolut accuracy | <±0.5 ppm | <±5 ppm | <±25 ppm |
| Long term stability (8 h) | <±0.5 ppm | <±5 ppm | <±25 ppm |
| NMR Regulation (option) | ±1 mG / ±0.1 µT (no drift) | ±1 mG / ±0.1 µT (no drift) | — |
Monitoring
- Reading of the internal temperature.
- Reading of the temperature of the servo electronics.
- Reading of the water temperature.
- Reading of the water flow rate.
- Reading of the analog safety devices.
Analog Protections
- Ramp speed limit.
- Overheat detection of all heating elements.
- Over power.
- Overvoltage.
- Overcurrent.
- Analog voltages.
- Water flow rate.
- Leakage detection.
- Condensation detection.
- Transistor fault.
- Quench protection for superconductors.
- 3 external interlock.
Ask for information
* Mandatory fields.