HVD Series

  • 100kV, 200kV and 400kV Models
  • High Input Impedance
  • 25ppm Temperature Coefficient
  • 0.5% Accuracy (higher accuracies available)

Resistive Voltage Dividers

Resistive Voltage Dividers

...for the measurement of high voltages using a standard digital voltmeter*

Spellman's HVD Series of high voltage dividers provide laboratory or production facilities with a convenient method of measuring up to 100kVdc, 200kVdc or 400kVdc with accuracy better than 0.5%. These dividers are designed for use with high impedance digital voltmeters. All HVD dividers are housed in a polycarbonate cylinder containing a matched set of precision metal film resistors which have a temperature coefficient of less than 25 ppm. A ladder-type construction technique is used in conjunction with polished high voltage bushings specifically designed to minimize corona. BNC connectors are used to provide the low voltage proportional output signal.

The HVD Series of high voltage dividers have no inferred bandwidth measurement capability what so ever. They are intended for DC steady state measurement only.

Custom Encapsulated OEM High Voltage Dividers

Spellman designs and manufactures a wide array of custom encapsulated high voltage dividers for OEM applications like ion beam implantation for semiconductor manufacturing. Unique HV divider sizes, shapes, mounting arrangements and terminations can be provided address­ing specific custom requirements. Contact Spellman to discuss your needs with our knowledgeable sales staff.

Calibration

Spellman provides an NIST traceable calibration certificate with each HVD. A yearly recalibration cycle is recommended. Contact Spellman for calibration services.

Specifications

(Ref. 128055-001 REV. J)

HVD 

  HVD100 HVD200 HVD400
Input Voltage 0-100kVdc 0-200kVdc 0-400kVdc
Input Impedance 1000Mohms 2000Mohms 4000Mohms
Output Impedance 1M; 100kohms 20kohms 40kohms
Output Taps 100V, 10V 2V 4V
Accuracy 0.5%: (0.1% opt)1 0.5%: (0.25% opt)2 0.5%: (0.25% opt)2
Stability 0.01%/8hrs 0.025%/8hrs 0.025%/8hrs
Temp. Coefficient 25ppm/˚C 25ppm/˚C 25ppm/˚C
Height 17.5" (44.5cm) 33.5" (84.5cm) 61" (154.94cm)
Max. Diameter 10" (25.4cm) 12" (30.5cm) 20" (50.8cm)
Weight 6.75 lbs (3.1kg) 12 lbs (5.5kg) 24.45 lbs (11.8kg)
Output Connector BNC type BNC type BNC type

Note: All specifications are subject to change without notice. Please consult the PDF version of this datasheet for the most up-to-date revision.