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Haefely PDP 8000 Differential Impulse Measurement Probe

Description

The accurate measurement of Surge pulses for equipment calibration purposes requires that a Surge generator output be measured in both Differential and Common modes.
Common mode measurements are relatively straightforward as the measurement is of a single output referenced to earth potential.

Differential measurements however require that both the high and common of a Surge generator output are measured. This requires use of two high voltage probes and a dual channel oscilloscope capable of arithmetic functions.

High voltage probes are notoriously sensitive to measurement position (vertical, horizontal), proximity of metal sheets, etc. In addition annual calibration of high voltage probes is NOT sufficient to ensure an accurate IMPULSE measurement can be made. So before each measurement, the probe(s) must be adjusted to the test equipment and measurement position. This is time consuming and requires additional test equipment or know-how not always readily available. To reduce the difficulties of Differential measurements from Surge generators, Haefely have developed an active probe especially for IMPULSE measurements on floating outputs.

Features

  • Divider Ratio 1000:1
  • Impulse measurement to 8kV
  • Impulse duration measurement to 20ms
  • Impulse rise time measurement from 400ns
  • Single BNC output matches all oscilloscopes
  • Separate power supply
  • AC/DC measurement

Application

  • Calibration of Surge impulse Generators

Specifications

Divider Ratio

1000 : 1

CMRR

≥ 46dB

Common Mode Input Impedance

30 k ohm

Differential Mode Input Impedance

60 k ohm

Max. Impulse Voltage

8000 V

Min. Impulse front time

450 ns

Max. Impulse decay time

11 ms

Input connections

4mm “banana” plugs

Output connections

50 ohm BNC connector

Maximum AC/DC Voltage

690 V differential / 400V common mode

Dimensions (W x H x D)

260 x 160 x 62mm

Weight

1.0 kg

Standards

CISPR
CISPR 11
CISPR 14 - 1
CISPR 14 - 2
CISPR 14 - 2
CISPR 16 - 1
CISPR 16 - 2
CISPR 16 - 3
CISPR 16 - 4
CISPR 22
CISPR 24
IEC
IEC/TR EN 61000 - 1 - 1
IEC/TR EN 61000 - 2 - 1
IEC/TR EN 61000 - 2 - 3
IEC EN 61000 - 3 - 2
IEC EN 61000 - 3 - 4
IEC/TC EN 61000 - 3 - 5
IEC EN 61000 - 4 - 2
IEC EN 61000 - 4 - 3
IEC EN 61000 - 4 - 4
IEC EN 61000 - 4 - 5
IEC EN 61000 - 4 - 6
IEC EN 61000 - 4 - 7
IEC EN 61000 - 4 - 8
IEC EN 61000 - 4 - 9
IEC EN 61000 - 4 - 11
European
EN 50 081 part 1
EN 50 081 part 2
EN 55 011
EN 55 013
EN 55 014
EN 55 015
EN 55 020
EN 55 022
EN 55 024
EN 50 082 part 1
EN 50 082 part 2
EN 50 093
American
FCC Part 15
MIL-STD - 461E