Description
The SOLLICH 20903 PCG – Pulse Current Galvanostat, device is designed to work in the field and in laboratory conditions as an adjustable and time-controlled DC current source. In particular, the functions of the device have been tailored to the needs of assessing the quality of insulation coatings on underground installations such as fuel and gas tanks or underground gas pipelines.
It is widely used in cathodic protection research as a portable bias current source in all kinds of tests and research studies on underground metal structures.
The pulsed operation of the galvanostat is programmed in a wide time range and is synchronized with both the internal clock and external pulses.
Device functions
The SOLLICH 20903 PCG instrument is assembled in a suitcase case that is easy to carry and transport, in which an internal power source (rechargeable batteries) is integrated. The equipment also includes a measuring cable 2 x 10 m. We can also supply a steel earthing pin with a length of 80 cm as an additional paid option. The method of mounting the internal elements of the device guarantees the required shock resistance, which allows for easy use in field measurements.
The main element of the device is a stabilized current source – a galvanostat, working with very high accuracy (setting resolution 0.1%) in six sub-ranges from 2 μA to 200 mA. The galvanostat is powered by internal Li-Ion batteries.
The output current from the galvanostat is cyclically tacted I_off / I_on. OFF and ON periods are adjustable in the range from 0.0 to 99.9 seconds with a resolution of 0.1 second. During the OFF cycle, the output current from the galvanostat can be set to 0 (switching off technology) or to a freely adjustable value (switching technology). Both values can have any values in the entire current range. The device is equipped with a digital meter that allows to measure and read the current values of the polarization current. The start of the OFF / ON cycle is internally synchronized with the start of each minute of the clock inside the device or manually triggered by a button or from an external timing device. An external timing device manages the entire OFF/ON cycle.
The device has a built-in system that synchronizes the operation of electronic systems with a GPS signal receiver or from an external device (e.g. a fixed cathodic protection station, DCVG generator, etc.). The GPS receiver is mounted as an option and is not mounted in the standard version.
