FUNCTIONS
TESTECRAN+™ is used to check the outer sheath of an underground medium or low voltage cable, by measuring the insulation resistance between the screen and earth. If a faulty condition is found, corrective measures must be taken in order to ensure ongoing good cable function. It is a handheld device supplied in a carrying case with its earth peg and connecting cables.
USE PRINCIPLE
The opération of TESTECRAN+™ is conpletely automatic.
Once connected, a push-button starts the measurement procedure :
Battery Voltage check
Self Test
Discharge of the cable screen
Indication of the cable screen status : OK or Faulted
Finished.
If the cable is operational, a green LED lights up, otherwise a red oneflashes and a buzzer
sounds.
TESTECRAN+™ is protected against a charged cable, thus there is no need to discharge
the cable before connecting. During the charging of the screen a LED flashes every
second giving an approximate indication of the length of the cable based on 1 km (0.6
mile) for every 12 seconds, depending on cable and ground conditions.