Wisman DEL Series Portable High-Voltage Power Supply — 50 kV / 100 W

Overview

The Wisman DEL Series Portable High-Voltage Power Supply is an engineered solution for precision DC high-voltage generation in laboratory, research, and industrial environments. Based on regulated switch-mode topology with active feedback control, the DEL series delivers stable, low-ripple high-voltage output up to 50 kV at 100 W maximum power. Its design emphasizes metrological-grade stability, thermal resilience, and operational safety—critical for applications requiring repeatable biasing, controlled charging, or sustained field generation. Unlike general-purpose HV modules, the DEL integrates dual-loop regulation (voltage and current), real-time fault monitoring, and configurable analog remote interface—all within a compact, benchtop-portable chassis. It complies with IEC 61010-1:2010 for electrical safety in measurement and laboratory equipment, and its internal interlock circuit supports integration into GLP/GMP-compliant test setups where personnel and system safety must be hardware-enforced.

Key Features

• Adjustable DC output from 0.5 kV to 50 kV, with current capability up to 50 mA and programmable power limit up to 100 W
• Ultra-low output ripple: ≤0.1% peak-to-peak relative to set voltage, verified under full-load and thermal equilibrium conditions
• High long-term stability: drift <0.02% over any 8-hour interval after initial 30-minute warm-up—suitable for extended-duration experiments
• Temperature coefficient ≤25 ppm/°C ensures minimal output drift across ambient variations from 0 °C to 50 °C
• Integrated analog remote control interface (0–10 V) for independent voltage and current setpoint modulation via external potentiometers or DAQ systems
• Dual-mode operation: constant-voltage (CV) and constant-current (CC) modes with automatic crossover and seamless transition
• Comprehensive protection suite: hardware-based overvoltage cutoff, short-circuit current limiting, arc detection with auto-recovery, and safety interlock input (open-collector compatible)
• Front-panel multi-turn potentiometers for local fine-tuning; rear-panel DB15 connector carries control signals, monitor outputs (0–10 V proportional to V/I), and interlock lines
• Compact mechanical design (240 × 130 × 140 mm), lightweight aluminum housing (3.0–5.65 kg), and integrated carrying handle enable rapid deployment in mobile labs or multi-station test benches

Sample Compatibility & Compliance

The DEL series is optimized for use with electrophoresis systems, electrostatic deposition apparatuses, capacitor aging racks, and dielectric breakdown testers. Its output polarity is fixed positive (standard) or optionally negative—configurable at order stage. All models meet CE marking requirements under the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU). The unit conforms to EN 61326-1:2013 for laboratory equipment immunity and emissions. For regulated environments, the analog monitor outputs support traceable calibration per ISO/IEC 17025, while the interlock input enables compliance with FDA 21 CFR Part 11 when integrated into validated workflows (e.g., electrospinning process qualification or HV insulation validation per ASTM D149).

Software & Data Management

While the DEL operates as a standalone analog-controlled instrument, its 0–10 V monitor outputs (JP2 header) are fully compatible with third-party data acquisition systems—including National Instruments DAQmx, Keysight U2300A, or LabVIEW-based logging platforms. Users may record real-time voltage, current, and status flags (e.g., “arc detected”, “interlock open”) at sampling rates up to 10 kHz. Optional OEM firmware upgrades support RS-485 Modbus RTU communication (upon request), enabling integration into SCADA or centralized lab automation networks. Audit trails for parameter changes are maintained externally via host-system logging; no onboard non-volatile storage is provided, aligning with security policies in regulated laboratories.

Applications

• Electrophoresis power supply for native PAGE, SDS-PAGE, and capillary electrophoresis systems requiring precise, low-noise HV bias
• Electrostatic processes: electrospinning of nanofibers, electrostatic spraying/coating, flocking, and particulate precipitation in air filtration R&D
• Dielectric testing: insulation resistance evaluation, partial discharge pre-conditioning, and corona onset studies per IEC 60270
• Capacitor and energy-storage device characterization: controlled charging/discharging cycles, leakage current measurement, and lifetime stress testing
• Laser system excitation: powering gas lasers (e.g., CO₂, HeNe) and solid-state pump diodes requiring stable HV bias
• Scientific instrumentation: electron multiplier biasing, mass spectrometer ion optics, and particle accelerator beamline tuning

FAQ

Is the DEL series suitable for continuous-duty operation?
Yes—rated for indefinite operation at ≤100 W with adequate ventilation. Derating is recommended above 40 °C ambient.

Can output polarity be reversed?
Standard units are positive-output only; negative polarity is available as a factory-configured option (specify at time of order).

What safety certifications does the DEL hold?
CE-marked per EN 61010-1:2010 and EN 61326-1:2013; RoHS 2011/65/EU compliant; no UL listing—custom certification support available upon request.

Does it support digital communication protocols?
Base models use analog I/O only. RS-485 Modbus RTU interface is available as an optional firmware/hardware upgrade.

How is calibration traceability ensured?
Each unit ships with a factory calibration report referencing NIST-traceable standards. Annual recalibration is recommended; Wisman provides accredited service or certified procedures for in-house verification.