Wiseman MN Series 50 kV / 50 W High-Voltage DC Power Supply

Overview

The Wiseman MN Series is a compact, high-stability, low-noise high-voltage DC power supply engineered for precision laboratory and OEM integration applications requiring reliable 50 kV output at up to 50 W. Based on advanced zero-current resonant topology and proprietary high-voltage insulation design, the MN series delivers exceptional voltage regulation under dynamic load conditions while maintaining ultra-low electromagnetic emissions. Its core architecture supports both constant-voltage (CV) and constant-current (CC) operation modes, with analog 0–10 V remote control enabling seamless integration into automated test systems, electrophoresis platforms, mass spectrometry ion sources, and electrostatic instrumentation. Designed for continuous duty in controlled environments, the unit meets stringent requirements for reproducibility and long-term drift performance—critical for applications such as DNA sequencing electrophoresis, protein extraction, and electrostatic lens biasing where voltage fidelity directly impacts measurement resolution and sample integrity.

Key Features

• High-voltage DC output up to 50 kV with selectable polarity (positive or negative)
• 50 W continuous power rating with convection-only thermal management
• Ultra-low output ripple: ≤0.1% peak-to-peak at full-rated voltage
• Exceptional short-term stability: ≤0.02% deviation over 8 hours post warm-up
• Low temperature coefficient of ≤25 ppm/°C ensures minimal drift across ambient variations
• Comprehensive protection suite: programmable arc response (NAT/AT modes), overvoltage lockout, short-circuit current limiting, and safety interlock interface
• Flexible analog control: internal multi-turn potentiometer + external 0–10 V voltage/current setpoint input
• EMI-optimized six-sided shielded enclosure (75 × 75 × 205 mm) for noise-sensitive environments
• Optional digital interfaces: RS-232, RS-485, or Ethernet for remote monitoring and scripting
• CE-certified design compliant with EN 61000-6-3 (EMI) and EN 61000-6-2 (immunity)

Sample Compatibility & Compliance

The MN series is routinely deployed in electrophoretic separation systems—including capillary electrophoresis (CE), SDS-PAGE, and pulsed-field gel electrophoresis—where precise, low-noise HV bias ensures consistent migration velocity and band resolution. It is also compatible with electron/ion beam sources, electrostatic chucks (ESCs), scintillation detectors, and ESD test fixtures. From a regulatory standpoint, the unit adheres to essential EU directives covered under its CE marking, including Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU. While not inherently 21 CFR Part 11–compliant, its analog control architecture supports integration into validated GxP workflows when paired with audit-trail-capable host software and calibrated external monitoring systems. All units undergo factory calibration traceable to NIST standards, with full documentation available upon request.

Software & Data Management

The MN series operates as a hardware-controlled analog power source; it does not include embedded firmware or onboard data logging. However, optional digital interfaces enable bidirectional communication with host systems using ASCII-based command protocols. RS-232 and RS-485 variants support standard SCPI-like syntax for voltage/current setpoint adjustment, status polling (e.g., output enable state, fault flags), and real-time analog readback (0–10 V scaled to 0–100% of setpoint). Ethernet-enabled models support TCP/IP socket communication and can be integrated into LabVIEW, Python (pySerial/pyModbus), or MATLAB environments via custom drivers. For GLP/GMP-compliant laboratories, users are advised to implement external data acquisition systems with timestamped logging, electronic signatures, and change-control records—consistent with ALCOA+ principles for raw instrument data integrity.

Applications

• Capillary and slab-gel electrophoresis (DNA sequencing, protein purification)
• Electrostatic deposition processes: electrospinning, electrostatic flocking, and corona charging
• Ion source and electron gun biasing in mass spectrometers and electron microscopes
• High-voltage bias for photomultiplier tubes, scintillation detectors, and radiation sensors
• ESD simulation and testing per IEC 61000-4-2
• Static charge control in semiconductor wafer handling (ESC bias)
• Capacitor charging circuits for pulsed-power research
• OEM integration in analytical instrumentation requiring compact, stable HV excitation

FAQ

What is the maximum continuous output power of the MN series?
The MN series is rated for continuous 50 W output at its full 50 kV rating, assuming adequate ambient cooling and operation within the specified temperature range (0–50 °C).

Can the MN power supply be used in constant-current mode?
Yes—both voltage and current regulation modes are supported. Current limit is adjustable via front-panel potentiometer or external 0–10 V analog signal, with automatic crossover to CC mode upon reaching the set limit.

Is remote programming possible without additional hardware?
Standard units feature analog control only. Digital remote operation requires ordering with optional RS-232, RS-485, or Ethernet interface modules.

Does the unit include built-in voltage and current metering?
Yes—dedicated 0–10 V analog outputs provide real-time voltage and current feedback signals, calibrated to ±1% accuracy at full scale.

What safety certifications does the MN series hold?
All MN units carry CE marking, confirming compliance with applicable EU health, safety, and environmental protection requirements under the Low Voltage and EMC Directives.

Can Wiseman provide OEM customization for mechanical or electrical interfaces?
Yes—Wiseman offers mechanical rehousing, connector relocation, custom I/O pinouts, and tailored firmware for RS-485/Ethernet variants under NDA-supported OEM agreements.

How is arc recovery handled during electrophoresis runs?
Two configurable arc response modes are available: NAT (Non-Arc-Trip) allows continued operation after minor arcing, while AT(X) disables output for 1–8 consecutive arcs before auto-reset—minimizing gel run interruption without compromising electrode integrity.