Product category:
Stand-Alone Instruments
News Release from: Elabo | Subject: SHV80/AHV80
Edited by the Electronicstalk Editorial
Team on 24 August 2004
Flexible configuration for HV tester
family
A new range of high-voltage testers features a modular design for easy adaptability to specific user requirements and is based on a fully electronic voltage source.
A new range of high-voltage testers features a modular design for easy adaptability to specific user requirements and is based on a fully electronic voltage source The flexibility in terms of specifying the devices is assured by various internal modules, some of which even permit further individual adjustment
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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Basically speaking, each device is subdivided into four main sections: high-voltage generation, device control, control unit and ports.
The user can specify the functionalities required, and certain equipment packages are also available as ready-made device variants.
In terms of its user control concept, the device blends into the existing series of VIT (virtual interface technology) devices.
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With this user control concept, the parameters are entered via a single angular momentum controller.
The only other control elements required are two separate pushbuttons, which can be actuated quickly and directly during normal operation.
A large graphic display is provided for displaying the test readings as well as the test plans and other parameters.
Various simple to access menus are available for configuring basic device settings (setup) and special test parameters as well as entire test sequences.
For applications in automatic systems that do not require the device to be controlled directly by a human operator, it is possible to order the devices entirely without the VIT technology.
This does not mean that the actual device functionality is lost.
In such scenarios, control ensues exclusively via interfaces.
The VIT technology can, however, be retrofitted at any time.
The device series complies with the relevant regulations in terms of the requirements placed on the device itself besides the possible application scenarios.
By way of illustration, the device generates a maximum output power of 500VA and a short-circuit current of 200mA from upwards of 1000V test voltage.
The voltage and current are tested with a measurement uncertainty of better than 1% on the high-voltage side.
Safety circuits with positive-action contacts and directly connectable warning lights are also standard features as are the prescribed closing states as per EN50191.
The device is fitted as standard with an electronic voltage generator, which, thanks to its compact design and low power dissipation, does not require additional fans.
This also meant that it has been possible to integrate the device into a 4HE sized 19in housing.
The device allows the user to select various tripping methods for detecting excess current as well as for monitoring minimum current and maximum voltage levels.
An RS 232 port is fitted as standard.
For conventional applications, digital I/Os permit direct communication with a PLC.
A novel feature for a test device of this kind is the optional Ethernet port, which provides an inexpensive means of integrating the device directly into a PC-based network.
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