Precision GPS Timing and Power Measurement Solutions
Analyze the Timing Signal
Reads, analyzes, and sources IRIG-B, DCF77, and 1 PPS. The comprehensive instrument for power substation timing.
Affordable Synchrophasor Powerhouse
Model 1133A combines GPS based precision timing with built-in power measurement functionality to create an IEEE C37.118 compatible PMU for the electric industry.
Portable Combustible Gas Meter for Transformer Analysis
Measure total combustible gases in oil-filled transformer nitrogen gas blankets with Model 921A.
Model 811AT Universal Test Plug Current Lead Set
As a set or individual single-phase current lead, Model 811 test leads feature industry compatible Universal Test Plugs and gold plated 0.25 in spade lugs for maximum quality.
January 12, 2024 New power cord available for the 1200 series GNSS clocks
The new power cord for the Models 1200B, 1201B/C, 1202B/C, 1205B/C, and the 1206B/C allows connections to an IEC320 C14 female socket. It has a male IEC320 C14 plug on one end and the clock power supply mating connector on the other. See our website for pictures and additional details. more info »
September 29, 2023 Model 931A Document Update
Name : Model 931A Manual
Version : V
Released : 28 September 2023 more info »
July 14, 2023 New Product - Model 843A/844A/844B Mini Test Jack Isolator Paddles
Same basic design as the Model 841A/842A/842B but smaller for the mini test switches. more info »
May 31, 2023 Model 1205 Firmware Update
Name : 1205_1206_Firmware
Version : 01.34 Rev 16May2023
Released : 16 May 2023 more info »
April 15, 2021 Presentation: Time in the Power Industry: How and Why We Use It
Arbiter Systems engineer Bill Dickerson delivers a talk to the IEEE North Jersey section on the use of precision timing in the power industry.
Topics covered include:
-Applications of precise time
-Accuracy requirements
-Time scales, time zones etc
-Sources of precise time
-Methods of timing distribution
-Problems sometimes encountered and how to avoid them more info »
March 28, 2024 European planes hit by mystery GPS jamming
Planes flying over and around the Baltic Sea in northern Europe have been suffering technical problems caused by jamming since Sunday, with 1614 planes, mostly civilian, reporting problems since then. more info »
March 28, 2024 Possible Negative Leap Second?
For the first time in history, world timekeepers may have to consider subtracting a second from our clocks in a few years because the planet is rotating a tad faster than it used to. more info »
March 1, 2024 China had "persistent" access to U.S. critical infrastructure
China-backed hackers have had access to some major U.S. critical infrastructure for "at least five years," according to an intelligence advisory. . . more info »
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What is Accuracy?
When manufacturers use accuracy values to define the performance of their products, consumers should have confidence that, in fact, the products do perform to the stated levels. However, that is not always the case. This paper takes a look at several misconceptions about "accuracy" - particularly within the measurement and control markets of the electric utility industry - and discusses various methodologies that can be adopted to justify claims and ratings.