The output polarity can be switched and the voltage ramp time adjusted via computer interface after switch on. All NHQ models feature recessed 10 position limit switches for both voltage and current. These can be set to help protect sensitive loads against accidental user error.

RS232 or CAN interfaces are provided on the standard and high precision versions. These interfaces provide full adjustment of the current limit. A windows based GUI is available for operating the units from a PC. An OPC system with integrated OPC server is available to aid integration in to larger systems. LabVIEW drivers are also available along with C++ and DLL files. The low cost version has an analogue interface for setting and monitoring the voltage.

A 'Kill' feature can also be enabled so that the output will automatically switch off when a preset current limit is reached. The ‘inhibit’ socket allows an external TTL signal to be used to switch the output OFF/ON.

NHQ modules are built into a 1/12 NIM (Nuclear Instrument Module) cassette format as standard. Both 19" rackmounting and desktop NIM crates are optionally available. Models are available with between 5 and 12 slots to install and control multiple NIM modules from the same crate.

If your test requirement is short term, we can provide units up to 20kV in our high voltage power rental range.

These units are often found in sensing and detection systems where low noise and high stability are paramount. Typical applications include medical, nuclear and particle physics along with vacuum technology.