EM Test esd NX30
Instruction Manual V 1.00.7 11 / 33
4.2.1 Battery charger / power supply unit
Power to the instrument is provided through a universal mains unit suitable for input voltages between 80 and 240 VAC. This
same unit also serves as a charger for the integral battery pack.
Charging of the battery takes about three hours. At this point a timer switches the charger to a reduced charging current and
the indicator lamp changes from red to green.
The battery will also charge up when the instrument is switched off. A full battery charge will suffice for several days of nor-
mal test operation.
Battery life expectancy (esd NX30 only):
• The esd NX30 is designed to provide 30,000 discharges at the full 30 kV over many hours
• Ambient temperatures over 50°C can lead to degradation of the battery. If treated carefully, more than 300 charge /
discharge cycles can be expected without a noticeable reduction in capacity.
• The charger and battery-pack form a matched entity. The battery must not be charged from any other unit and the
charger is to be used exclusively for the intended purpose.
Operating advice:
• Use the equipment only in dry surroundings.
• Recharge the battery about every 6 months even if the instrument is not being used.
4.2.2 Options
A range of additional accessories is available for special applications and for testing to alternative standards:
• Discharge networks and test tips for other standards
• Fast rise time tip
• Coaxial measurement target
• Tripod adapter
• Opto link to a PC
• H-field adapter
• Flexible test tips
• External discharge remover
• Etc.
4.2.3 R/C Discharge Networks
The basic set contains a discharge network and tips for conducting tests that conform to IEC / EN 61000-4-2 (2008. Alterna-
tive networks can be installed for testing in accordance with other standards.
Several networks are given in the order list. The C and R values of the discharge network can also be specified for other
applications. Networks conforming to other standards can be built upon request. The only calibration method that is support-
ed is those according to IEC 61000-4-2.
Exchanging the discharge network is described in section "Exchanging the R/C network".
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