Chapter 12
Technical Specifications and
Operational Parameters
12.1
Scope
This section includes all of the technical specifications and operational characteristics of the 1133A,
including:
◦
Standard Options
◦
Receiver Characteristics
◦
AC Current and Voltage Inputs, Other Inputs & Outputs
◦
Instrument Interface
◦
Flash Memory Data Storage
◦
Accuracy Specifications
◦
Power Quality Measurement Capability
◦
System Control and Monitoring
◦
Synchronization through GNSS or optional IRIG-B
◦
Power Requirements
◦
General - Physical & Environmental Performance
NOTE: Specifications are subject to change without notice.
A built-in Global Positioning System (GNSS) satellite receiver synchronizes the 1133A to within
1
µ
s of Coordinated Universal Time (UTC). Optionally, an IRIG-B decoder replaces the GNSS
receiver and synchronizes 1133A to the accuracy of the IRIG-B time source. The GNSS receiver
can simultaneously and continuously track up to twelve satellites. Results from all tracked satellites
are averaged for better accuracy using least-squares estimation. No Position-Hold function is used.
Standard three-phase voltage and current inputs allow for revenue metering, power quality and
system control monitoring.
32 megabytes of standard flash memory are used to record revenue data, power quality, internally
detected faults, alarms, and various events. Download any registered and event data, or broadcast
current data for analysis using PSCSV software. Other supported protocols include DNP, Modbus
and PQ-DIF.
