User's Manual

34 TWACS
®
- ORION
®
for CENTRON
®
Meter User Guide
Electrical Specifications
Electrical Specifications
The electrical specifications include:
• Electrical ratings
• Compliance Specifications
Electrical Ratings
The following table provides the electrical ratings.
Compliance Specifications
The following table provides the compliance specifications.
N OTE ANSI C12.1-2001 is the referring standard for tests listed in tables 5.2,
5.3, and 5.4.
Table 3.1 Electrical ratings
Parameter Rating
Voltage 6V<=V<=12V
Quiescent power 25mA approximate
Maximum input surge 100mA maximum
Internal fusing None
Grounding None
Electronics connection
The EMTR is connected to the
EMT-3C-MP transponder during
meter/transponder integration.
Electronics isolation Refer to the Electronic Metering Transponder
for CENTRON Meter User Guide Y10317TM
Rev. A.
Table 3.2 Compliance specifications
Test Title Applicable Specification
EMI/RFI Emission
conducted/radiated
ANSI C12.1-2001 Test No. 27- “Radio
Frequency Conducted and Radiated Emissions”
per CFR 47 Part 15, Class A and B. (See also
ANSI C63.4)
EMI/RFI Susceptibility ANSI C12.1-2001 Test No. 26- “Effect of Radio
Frequency Interference”
AC line surge ANSI C12.1-2001/IEEE C62.41-1991 Test No.
17- “Effect of High Voltage Line Surges”
Electrical fast transient ANSI C12.1-2001 Test No. 25- “Electrical Fast
Transient/Burst” (Testing at 100 and 400 KHz is
required) IEC 801-4: 1988
Surge withstand
capability FT and OSC
ANSI/IEEE C.37.90.1 - 2002