Đồng hồ đo điện Contrel HRI-R40
Insulation resistance is measured by applying a direct current signal between the isolated line and earth: the level of insulation can be determined by measuring the leakage current to earth. HRI-R40 ensures an effective measurement of the insulation resistance even in the presence of strong interference and high harmonic or direct-current components, due to its sophisticated digital filter.
Programming
The device offers broad programming possibilities through its user-friendly digital display menu and four selection keys.
Complete monitoring of all electrical parameters
HRI-R40 tests the thermal and electric overloadof the insulating transformer, managing both PT100 or PTC probes. The electric overload monitoring of the medical transformer can also be tested by connecting a current transformer and setting appropriate alarm thresholds. The alarms can be controlled remotely by connecting up to four PR signalling panels.
Self testing system
Error-Link Fail system checkes that the terminals are connected correctly: it prevents the possibility to operate.