Wiseman PRA Series ±8 kV / 10 W Instrument-Dedicated High-Voltage Power Supply

Overview

The Wiseman PRA Series ±8 kV / 10 W Instrument-Dedicated High-Voltage Power Supply is engineered for precision-critical laboratory and OEM applications requiring stable, low-noise, polarity-reversible DC high-voltage output. Based on zero-current resonant topology and proprietary high-voltage insulation design, the PRA delivers exceptional long-term stability (<0.02% drift per 8 hours post warm-up), ultra-low ripple (0.01% V_p-p), and minimal electromagnetic interference—attributes essential for sensitive analytical instrumentation. Its core architecture supports rapid, controlled polarity reversal under full-load conditions without interruption to output regulation, making it uniquely suited for time-resolved ion manipulation in mass spectrometry, electrophoretic separation systems, and electron-optical subsystems where dynamic field polarity switching is integral to operational sequence.

Key Features

• Programmable bipolar output: ±8 kV at up to 10 W continuous power, with optional voltage ranges extending to ±20 kV and power levels from 0.5 W to 10 W
• Fast, deterministic polarity reversal: User-selectable transition times of 10 ms, 25 ms, 50 ms, 100 ms, 250 ms, 500 ms, or 1 s—enabled via TTL-compatible control signal on standard 9-pin D-sub connector
• High-fidelity analog monitoring: Isolated 0–5 V proportional outputs for real-time voltage and current telemetry, compatible with data acquisition systems and SCADA interfaces
• Dual-mode operation: Local control via front-panel potentiometer or fully remote digital control via RS-232, RS-485, or USB 2.0 (optional firmware-enabled)
• Robust protection suite: Integrated arc detection, foldback current limiting, overvoltage clamping, and thermal shutdown with automatic recovery
• Industrial-grade environmental resilience: Operates continuously from 0 °C to +40 °C; storage range extends to −40 °C to +85 °C; rated for 10–85% non-condensing relative humidity
• Compact, convection-cooled mechanical design: 41.5 mm × 168 mm × 115 mm footprint (±8 kV / 10 W variant); 1.4 kg mass; no forced-air or liquid cooling required

Sample Compatibility & Compliance

The PRA Series is designed for direct integration into analytical platforms requiring tightly regulated, low-noise HV bias—particularly mass spectrometers (e.g., quadrupole, TOF, and ion trap systems), capillary electrophoresis instruments, electron multipliers, and electrostatic chucks used in semiconductor metrology. Its low ripple and high stability meet stringent requirements for ion transmission efficiency and signal-to-noise ratio in trace-level detection workflows. The unit complies with CE marking directives (EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU) and is constructed to support GLP-compliant instrument validation protocols. While not inherently FDA 21 CFR Part 11–compliant, its analog/digital I/O architecture enables integration into audit-trail-capable control environments when paired with validated host software and hardware logging infrastructure.

Software & Data Management

Remote operation is supported via ASCII command protocol over RS-232/RS-485 or USB 2.0 (with included Windows/Linux drivers). Standard commands include voltage setpoint adjustment, polarity toggle execution, status register readout (including fault flags), and real-time voltage/current query. Optional LabVIEW™, Python, and MATLAB® API wrappers are available upon request for automated test system integration. All communication channels support hardware handshaking and configurable baud rates (RS-232/485: 9.6–115.2 kbps). Analog monitor outputs (0–5 V) provide direct connection to oscilloscopes, DAQ cards, or PLC analog inputs for synchronized waveform capture and closed-loop feedback implementation.

Applications

• Mass spectrometry: Ion source biasing, detector dynode chain supply, and reflectron/steering electrode control
• Capillary electrophoresis and microchip electrophoresis: Electroosmotic flow modulation and injection voltage pulsing
• Electron microscopy: Filament bias, Wehnelt grid control, and beam blanking circuits
• Electrostatic applications: E-chuck actuation in wafer handling, electrospinning nozzle biasing, and electrostatic precipitator test benches
• Scientific research: Ion mobility spectrometry, plasma diagnostics, and fundamental studies of charge transport in dielectric media
• Medical and life science instrumentation: DNA sequencer HV modules, MALDI source supplies, and electrophoretic blotting systems

FAQ

Is the PRA Series suitable for continuous-duty operation in a climate-controlled lab environment?
Yes. Rated for continuous operation at ambient temperatures between 0 °C and +40 °C with natural convection cooling, the PRA maintains specified stability and ripple performance under full-load conditions when installed with ≥25 mm clearance on all sides.
Can polarity reversal be triggered synchronously with external TTL pulses?
Yes. The 9-pin D-sub interface includes a dedicated polarity control line compatible with standard 0–5 V TTL logic. Transition timing is factory-configured per user specification and remains invariant across input voltage and load variations.
Does the unit support analog voltage programming in addition to digital interfaces?
No. Analog programming is not natively supported; however, the 0–5 V monitor outputs enable external closed-loop control when interfaced with third-party PID controllers or DAQ-based feedback systems.
What is the typical lead time for custom voltage/power configurations?
Standard PRA models ship within 2–3 weeks. Custom variants (e.g., ±12 kV @ 6 W with 15 ms reversal) require 6–8 weeks from order confirmation, subject to engineering review and compliance verification.
Are calibration certificates and traceable documentation available?
Yes. NIST-traceable calibration reports (including output voltage accuracy, ripple measurement, and polarity reversal timing verification) are available as a value-added service at time of order.