Introduction; Scope Of Supply - HBM SCM-HV Guide Rapide

Introduction

3 Introduction
4

Scope of supply

16
The SCM­HV signal conditioner is used for the differen­
tial measurement of high voltages with QuantumX mod­
ules offering strain gauge full bridge input, for example
MX840A, MX440A and MX410/B.
Within the scope of measurement category II (supply net­
work from the socket), the maximum operating voltage to
ground potential is 300 V DC or 300 V rms AC. Taking
the maximum acceptable rms value into account, the
peak value of the voltage must not at any time exceed
700 V between the connections (differential mode) and to
ground potential (common mode).
Its robustness in the face of high voltages and transients
also makes the SCM­HV suitable input protection for
QuantumX modules, when the voltages to be measured
include high voltage peaks.
The 10 V measuring range allows low voltage values to
be measured at a high potential and currents to be mea­
sured via an external shunt.
The SCM­HV applies a safety limit to the measuring volt­
age, which is electrically isolated from the adjacent chan­
nels in the QuantumX module. This allows any number of
SCM­HVs to be operated without mutual interference.
The signal conditioner can be automatically identified and
adjusted with TEDS (electronic data sheet).
S QuantumX SCM-HV Voltage signal conditioner
Order no.: 1-SCM-HV
S Quick Start Guide
A3615-4.0 HBM: public
SCM-HV