Clamp-On Ct Input; Pulse Inputs - Radian RD-30 Operation Manual

Operations Overview
4.6 Clamp-On CT Input
The RD-30 features a clamp-on current transformer input. This input can only be utilized with
Radian approved current transformers, as others do not have the inherent accuracy needed to
optimize the RD-30's accuracy and stability. The input is a seven-pin connector that provides
power, serial communications, and an input for specific clamp-on current transformers.
4.7 Pulse Inputs
The RD-30 Pulse Inputs consist of BNC connectors labeled 1, 2, 3. These inputs are open collec-
tor. Phase A input is labeled as 1, Phase B input is labeled as 2 and Phase C input is labeled as
3. While doing a meter test a RM-1S Remote Reset Switch may be connected to input 3 (Phase C
input) and can be used to gate (start/stop/reset) all three inputs simultaneously. Or, instead of the
RM-1S, any of the Radian pickups may be connected to input 3 (Phase C input). The pickups con-
sist of the RM-1H, RM-DS, and RM-KYZ, all which can be used to test various electricity meters.
While doing a standards test all three inputs can be used individually or simultaneously.
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RD-30 Operations Manual