This device contains one fast high-voltage power amplifier.

The amplifier is able to provide an output power of about 500 VA to loads with a significant capacitance. The output voltage is bipolar and ranges from 0 to ±250 V. The output current can continuously reach values of up to 1 A.

Optional monitor outputs allow for controlling the output signal. Phase-accurate voltage or current scanning is available.

The amplifier and its power supplies are linearly operating circuits. The emission level of electromagnetic radiation is therefore very low.

#Technical Data

Characteristics

• High-voltage power amplifier
• High output power, high bandwidth
• DC accuracy, low noise
• Short-circuit proof, overcurrent and overtemperature protection
• 19" case

Input

• Connector: 50 Ω BNC socket
• Input voltage: ±1 V
• Permissible overload: ±10 V
• Input impedance: ca. 1 MΩ

Output

• Connector: 50 Ω MHV socket
• Output voltage: ±250 V
• Output current: ±1 A continuous, peak: ±2 A typ.
• Short-circuit proof: short-circuit duration indefinite
• Bandwidth with a capacitive load of 0–10 nF (-3dB): DC –  >300 kHz
• Power bandwidth (sinusoidal output 250 V_p): >100 kHz without load, 90 kHz typ. with a capacitive load of 10 nF
• Output offset voltage: 5 mV typ., < 10 mV
• Noise voltage and output ripple (DC–10 MHz): 50 mV_eff typ., < 100 mV_pp

Cooling

• Passive cooling: Extruded heatsink on the rear panel
• Forced cooling: four fans (120×120×38 mm³, max. 3400 rpm)
• Fan control: proportional controller
• Temperature monitoring: shutdown threshold ca. 60°C, hysteresis: ca. 10°C

Power Supply

• Nominal voltage: 230 V or 115 V, ±10% (changeable by a voltage selection switch)
• Nominal frequency: 50/60 Hz
• Mains connection: IEC inlet with EMC filter and integrated fuse holder
• Inrush current: <2 A at 230 V, <4 A at 115 V (limited by an inrush current limiter)
• Power consumption: 800 VA at full load, 100 VA without load
• Fuse: T 5 A at 230 V, T 8 A at 115 V

General

• 6 U 19" bench-top case:
  • Height: 266 mm, width: 448 mm, depth: 380 mm
  • Total depth including heatsink, fans, and handles: 550 mm
  • Total height including case feet: 280 mm
• Heatsink: black anodized extruded aluminum profile on the rear panel
• Forced cooling:
  • Four 120 mm fans on the heatsink
  • Temperature-dependent regulation of the fan speed
  • Monitored fan operation, warning in the event of fan failures
• Weight: 28 kg
• Cleaning: only use a damp cloth, avoid use of organic solvents

#Download

User Manual

#Additional Information

Shipment Contents

• High-voltage power amplifier HV-PA500-1 in a 19" case
• Line cord (universal IEC mains lead, length 1.8 m)
• User manual (see above)

Accessories