Secure Meters Ltd. Is the manufacturer of Portable Admittance Tester. Secure Meters Ltd. Is an ISO: 27001 and ISO: 14000 certified company. Portable Admittance Tester is also known as `Red Phase Instruments - 505 B`. It employs a unique method of injecting an audio frequency into secondary side to detect shorted CT turns/ fault in metering wire. It is easier for utilities to protect revenue of their CT metering installations by using Model 505B. Portable Admittance Tester is applicable for on site testing of CT metering installations and for automatic health check of CT.
