Documentation

Product documentation is organized first by Category (Timing and Frequency, Synchronized Power Measurements, etc.) and then by document type (Manuals, Data Sheets, White Papers, etc).

Documentation is also available by Product. Use the Products menu to search by specific product.

Contact Technical Support for assistance or more information.

  • Timing and Frequency

    • Manual/Training

      • Model 940A User Manual
        Operation description of the Model 940A, a powerful diagnostic tool for analyzing time codes: IRIG-B, DCF77 and 1 PPS. Also sources IRIG-B.
        Download PDF(4 MB) »
      • Model 940A Reference Guide
        Quick operational overview of the Model 940A, a powerful diagnostic tool for analyzing and sourcing time codes: IRIG-B, DCF77 and 1 PPS.
        Download PDF(750 kB) »
      • Model 120A User Manual
        Operation and configuration of the Model 120A.
        Download PDF(676 kB) »
      • Model 120A User Manual Español
        Operation and configuration of the Model 120A.
        Download PDF(701 kB) »
      • Model 120A Setup Guide
        Quick overview to get started.
        Download PDF(346 kB) »
      • Model 120A Setup Guide Español
        Descripción general rápida para comenzar.
        Download PDF(228 kB) »
      • Model 1073A User Manual
        Provides operating instructions for the Model 1073A.
        Download PDF(499 kB) »
      • Model 1073A Quick Setup Guide
        Provides a quick overview of the configuration.
        Download PDF(214 kB) »
      • Model 1083A User Manual
        Provides operating instructions for the Model 1083A.
        Download PDF(204 kB) »
      • Model 1083B User Manual
        Provides operating instructions for the Model 1083B.
        Download PDF(3 MB) »
      • Model 1084A/B/C User Manual
        Provides operating instructions for the Model 1084A/B/C.
        Download PDF(4 MB) »
      • Model 1084B/C Quick Setup Guide
        Provides a quick overview of the configuration.
        Download PDF(593 kB) »
      • Model 1084A/B/C User Manual Español
        Provides operating instructions for the Model 1084A/B/C en Español.
        Download PDF(1 MB) »
      • Model 1088B User Manual
        Provides operating instructions for the Model 1088A/B.
        Download PDF(6 MB) »
      • Model 1088B Quick Setup Guide
        Provides a quick overview of the configuration.
        Download PDF(581 kB) »
      • Model 1088B User Manual Español
        Provides operating instructions for the Model 1088B en Español.
        Download PDF(1 MB) »
      • Model 1092A/B/C/1093A/B/C User Manual
        Manual covers 1092A/B/C and 1093A/B/C models.
        Download PDF(3 MB) »
      • Model 1092A/B/C/1093A/B/C User Manual Español
        Provides operating instructions for the Model 1092A/B/C and Model 1093A/B/C en Español.
        Download PDF(1 MB) »
      • Model 1093B/C Quick Setup Guide
        Provides a quick overview of the configuration.
        Download PDF(572 kB) »
      • Model 1093B/C Quick Setup Guide Español
        Provides a quick overview of the configuration.
        Download PDF(688 kB) »
      • Model 1094B User Manual
        Provides operating instructions for the Model 1094B.
        Download PDF(3 MB) »
      • Model 1094B Quick Setup Guide
        Provides a quick overview of the configuration.
        Download PDF(179 kB) »
      • Model 1095A/C User Manual
        Provides operating instructions for the Model 1095A/C.
        Download PDF(4 MB) »
      • Model 1095A/C Quick Setup Guide
        Provides a quick overview of the configuration.
        Download PDF(684 kB) »
      • Model 1200B 1201B/C User Manual
        Model 1200B and Model 1201B/C Operation Manual
        Download PDF(6 MB) »
      • Model 1200B Quick Setup Guide
        Provides a quick overview of the configuration.
        Download PDF(141 kB) »
      • Model 1201B/C Quick Setup Guide
        Provides a quick overview of the configuration.
        Download PDF(141 kB) »
      • Model 1202B/C User Manual
        Model 1202B/C Operation Manual
        Download PDF(6 MB) »
      • Model 1202B/C Quick Setup Guide
        Provides a quick overview of the 1202B/C configuration.
        Download PDF(750 kB) »
      • Model 1205B/C 1206B/C User Manual
        Model 1205B/C Operation Manual
        Model 1206B/C Operation Manual
        Download PDF(4 MB) »
      • Model 1205B/C and Model 1206B/C Setup Guide
        Provides a quick overview of the 1205B/C configuration.
        Download PDF(2 MB) »
      • Model 1205D Setup Guide
        Provides a quick overview of the 1205D configuration.
        Download PDF(2 MB) »
      • Remote GPS Receiver for the Doble F6150 Test Set Operating Instructions
        How to use the Remote GPS Receiver in conjunction with the Doble F6150.
        Download PDF(220 kB) »

    • Data Sheet

      • Model 940A Data Sheet
        Specifications and details about the Model 940A Timing System Analyzer.
        Download PDF(546 kB) »
      • Model 940A Data Sheet Español
        Specifications and details about the Model 940A Timing System Analyzer.
        Download PDF(528 kB) »
      • Model 120A Data Sheet
        Model 120A specification and ordering information.
        Download PDF(626 kB) »
      • Model 120A Data Sheet Español
        Model 120A specification and ordering information.
        Download PDF(556 kB) »
      • Model 1073A Data Sheet
        Buffers and distributes signals generated by precision clock sources, such as the Models 1084B/C, 1088B, 1092A/B/C, 1093B/C, 1094B, and the 1201B/C.
        Download PDF(798 kB) »
      • Model 1073A Data Sheet Español
        Provides specifications for the Model 1073A en Español.
        Download PDF(284 kB) »
      • Model 1083B Data Sheet
        Delivers performance comparable to atomic frequency standards, but at a fraction of the price.
        Download PDF(3 MB) »
      • Model 1084B/C Data Sheet
        Highest accuracy (to ± 40 ns), similar options to Model 1088B.
        Download PDF(2 MB) »
      • Model 1084A/B/C Data Sheet Español
        Provides specifications for the Model 1084A/B/C en Español.
        Download PDF(975 kB) »
      • Model 1088B Data Sheet
        Highest accuracy (± 40 ns), most standard features, most options.
        Download PDF(466 kB) »
      • Model 1088B Data Sheet Español
        Provides specifications for the Model 1088B en Español.
        Download PDF(321 kB) »
      • Model 1092A/B/C Data Sheet
        Tabletop version of Model 1093B/C, with 500 ns worst-case accuracy.
        Download PDF(1 MB) »
      • Model 1093B/C Data Sheet
        Low cost GPS timing source for applications not requiring the ultimate precision accuracy of our higher-performance models. Maintains ± 500 ns worst-case accuracy.
        Download PDF(1 MB) »
      • Model 1093B/C Data Sheet Español
        Provides specifications for the Model 1093B/C en Español.
        Download PDF(707 kB) »
      • Model 1094B Data Sheet
        Most commonly requested features for the substation included.
        Download PDF(2 MB) »
      • Model 1094B Data Sheet Español
        Model 1094B data sheet en Español
        Download PDF(486 kB) »
      • Model 1095A/C Data Sheet
        Designed for industrial applications that require common timing signals, such as IRIG-B, 1 PPS, and RS-232 serial time codes, in a small, rugged enclosure suitable for indoor and outdoor use.
        Download PDF(352 kB) »
      • Model 1095A/C Data Sheet Español
        Provides specifications for the Model 1095A/C en Español.
        Download PDF(205 kB) »
      • Model 1200B Data Sheet
        Model 1200B Specifications and Options
        Download PDF(679 kB) »
      • Model 1201B/C Data Sheet
        Model 1201B/C Specifications
        Download PDF(670 kB) »
      • Model 1201B/C Data Sheet Español
        Model 1201B/C Specifications en Español
        Download PDF(1 MB) »
      • Model 1202B/C Data Sheet
        Model 1202B/C Specifications
        Download PDF(673 kB) »
      • Model 1205B/C Data Sheet
        Model 1205B/C specifications and options
        Download PDF(1 MB) »
      • Model 1205B/C Data Sheet Español
        Model 1205B/C specifications and options
        Download PDF(726 kB) »
      • Model 1205D Data Sheet
        Model 1205D specifications and options
        Download PDF(674 kB) »
      • Model 1206B/C Data Sheet
        Model 1206B/C specifications and options
        Download PDF(786 kB) »
      • GPS Antenna Data Sheet
        GPS Antenna Technical specifications.
        Download PDF(4 MB) »
      • GNSS Antenna Data Sheet
        GNSS Antenna Technical specifications.
        Download PDF(4 MB) »

    • White Papers

      • Establishing Traceability of Synchrophasors at the National Laboratory Level
        Synchrophasors have emerged as a technology with the potential to improve grid stability via post-mortem failure analysis, and possibly predict insipient failures, allowing remedial action to be taken prior to a catastrophic event. But challenges remain before this technology can offer global solutions.
        Download PDF(68 kB) »
      • GPS Substation Clock Requirements
        Broad discussion on what levels of accuracy - and how one can be sure they are achieving these levels - are required in various applications.
        Download PDF(25 kB) »
      • IRIG-B Time Code Accuracy, IED and System Design Issues
        Discussion of the accuracy capabilities of the IRIG-B Time Code, and related challenges.
        Download PDF(31 kB) »
      • NERC PRC-002 and PRC-018 Compliance Statement
        Discussing NERC compliance per PRC-018, PRC002, and Arbiter clock products
        Download PDF(70 kB) »
      • Time in the Power Industry: How and Why We Use It
        Overview discussing applications of precise time in the power industry, including topics regarding distribution, time signals and more.
        Download PDF(407 kB) »
      • Why GPS Clocks Are Not Free
        Discussion of the value of substation-ready GPS based clocks
        Download PDF(12 kB) »
      • Specifying Holdover Performance
        What do the holdover specification claims really mean? This guide will help you understand and compare holdover claims.
        Download PDF(1 MB) »

    • Application Notes/Option Information

      • App Note 101: Distributing Timing Signals in a High-EMI Environment
        Describes methods for synchronization of timing signals between devices that may be separated by significant distances, or be affected by high electromagnetic interference (EMI)
        Download PDF(90 kB) »
      • App Note 102: Synchronizing End-to End Relay Testing with Model 1088B
        Application note.
        Download PDF(18 kB) »
      • App Note 103: Large Format Displays with Arbiter products
        Information and specifications regarding large-format displays of time of day or other data available from the Arbiter Systems®, Inc. GPS Satellite-Controlled Clocks.
        Download PDF(16 kB) »
      • COMTRADE Sample Rate Generator
        A GPS Satellite-Controlled Clock, equipped with the COMTRADE Sample Rate Generator, generates any one of the 48 standard sampling rates for waveform digitization in 50 Hz or 60 Hz systems as defined in IEEE Standard C37.111-1991, Data Exchange (COMTRADE) for Power Systems. For Models 1084A/B/C and 1088B
        Download PDF(27 kB) »
      • Continual Self Calibration with Power System Time, Frequency and Phase Monitor Option
        Paper discussing how clocks with this option are continually calibrated using GNSS time transfer directly traceable to UTC-USNO and NIST and thus no calibration is necessary.
        Download PDF(34 kB) »
      • GPS Antenna Mounting Bracket
        The GPS Antenna Mounting Bracket is designed specifically for use with antennas shipped with Arbiter Systems, Inc. GPS Satellite Controlled Clocks.
        Download PDF(462 kB) »
      • GPS Antenna Mounting Bracket Instructions
        Installation instructions for GPS Antenna Mounting Bracket, AS0044600
        Download PDF(580 kB) »
      • GNSS Antenna Preamplifier Installation Instructions
        Installation Instructions for GNSS Antenna Preamplifier Order Number AS0044700
        Download PDF(3 MB) »
      • IRIG Standard 200-16
        IRIG Serial Time Code Formats, prepared by the Timing Committe of the Telecommunications and Timing Group Range Commanders Council
        Download PDF(857 kB) »
      • IRIG-B Specifications
        Technical brief of the implementation of IRIG-B Time Code in Arbiter products.
        Download PDF(488 kB) »
      • Internal Network Time Protocol (NTP) Server -DISCONTINUED-
        Overview of NTP implementation with Arbiter series of precision timing products.
        Download PDF(22 kB) »
      • Internal Network Time Protocol (NTP) Server Español -DISCONTINUED-
        Provides specifications for the (NTP) Server en Español.
        Download PDF(129 kB) »
      • Option 32: Internal NTP Server Setup and Operation Guidelines -DISCONTINUED-
        Option 32 allows the clock to act as time server over an Ethernet network using the network time protocol operating in server mode. Document describes setup and operations.
        Download PDF(279 kB) »
      • Option 33: Dual Internal NTP Server Setup and Operation Guidelines -DISCONTINUED-
        Option 33 allows the clock to act as time server over an Ethernet network using the network time protocol operating in server mode. Document describes initial setup and operation.
        Download PDF(301 kB) »
      • Option 34: Network Time Protocol (NTP)/Precision Time Protocol (PTP) Server Data Sheet
        Provides GPS-synchronized, stratum level 1 Network Time Protocol or Precision Time Protocol - PTP (IEEE 1588) on two 10/100BT or SFF Fiber Ethernet connectors. Available on Models 1084, 1088 and 1093.
        Download PDF(22 kB) »
      • Power System Time, Frequency and Phase Monitor
        Overview and specifications regarding the Power System Time, Frequency, and Phase Monitor option
        Download PDF(152 kB) »
      • Self-Monitor, IRIG-B Distribution System and Second RS-232
        Overview and specifications of Model 1088B when equipped with the System Self-Monitor, IRIG-B Distribution and Second RS-232 option.
        Download PDF(20 kB) »
      • Windows® Time Service Configuration
        Setup and configuration of Windows® Time Service
        Download PDF(14 kB) »

    • Guides

      • Arbiter Time Service Installation Instructions
        Instructions to aid in the installation.
        Download PDF(382 kB) »
      • Chassis Dimensions
        Basic dimensions for rack mounted clocks
        Download PDF(4 MB) »
      • Timing Products Options and Accessories
        Overview of Options and Accessories available for precision time instruments.
        Download (36 kB) »
      • Model 1084A/B/C Firmware Upgrade Instructions
        How to update the firmware EPROM in the Model 1084A/B/C.
        Download PDF(646 kB) »
      • Model 1088A/B Firmware Upgrade Instructions
        How to update the firmware EPROM in the Model 1088A/B.
        Download PDF(309 kB) »
      • Model 1092-93A/B/C Firmware Upgrade Instructions
        How to update the firmware EPROM in the Model 1092A/B/C and Model 1093A/B/C.
        Download PDF(93 kB) »
      • Model 1095A/C DIN Rail Mounting Assembly Instructions
        How to install the DIN rail mounting bracket.
        Download (117 kB) »
      • Option 28 Firmware Upgrade Instructions
        How to update the firmware EPROM in the Option 28 System Time, Phase, and Frequency Monitor.
        Download PDF(154 B) »
      • GNSS Surge Protector Installation Instructions
        Details about the GNSS Surge Protector and its installation.
        Download PDF(110 kB) »
      • Reducing Overshoot and Ripple in Arbiter Products with High Drive Outputs
        This paper covers a method of reducing the undesired overshoot and ripple in Arbiter products with high drive outputs.
        Download PDF(277 kB) »
      • Timing Signals, IRIG-B and Pulses
        Basic information about timing signals and how to connect them to your IEDs. Common questions concerning connecting timing signals include:
        • What are the different types of IRIG-B, and what are the differences?
        • How do you connect multiple devices to one timing output?
        • How far can you transmit timing signals?
        • What kind of cabling and connectors should I use?
        Download PDF(197 kB) »

    • General/Other

      • Catalogo de Productos de Sincronizacion y Frecuencia
        Lista completa de productos.
        Download PDF(312 kB) »
      • Press Release: Leap Second Anomaly December 2016
        A firmware update is required for the following models to correctly apply the leap second addition on December 31, 2016.
        Download PDF(70 kB) »
      • Model 120A CE Declaration
        Declaration of Conformity with European Union Directives.
        Download PDF(101 kB) »
      • Model 1094B CE Declaration
        Declaration of Conformity with European Union Directives.
        Download PDF(287 kB) »
      • Model 1201B/C CE Declaration
        Declaration of Conformity with European Union Directives.
        Download PDF(102 kB) »
      • Model 1202B/C CE Declaration
        Declaration of Conformity with European Union Directives.
        Download PDF(103 kB) »
      • Model 1205B/C CE Declaration
        Declaration of Conformity with European Union Directives.
        Download PDF(103 kB) »
      • Antenna Cable Assemblies RoHS2 Declaration of Conformity
        This certificate declares that the described equipment conforms to the applicable requirements ofthe directive on RoHS2 2011/65/EU adopted by the European Union.
        Download PDF(286 kB) »

  • Synchronized Power Measurements

    • Manual/Training

    • Data Sheet

    • White Papers

      • What is Accuracy?
        Multiple products in the marketplace do not live up to accuracy claims or specifications. This document discusses the challenges of stating and meeting claims.
        Download PDF(46 kB) »
      • Applications Of Synchronised Power Quality Measurements
        This paper describes methods developed at Arbiter Systems, Inc. to perform synchronised power quality measurements using methods similar to those used in PMUs. These methods necessarily differ from accepted international standards, but the variations are justified for these applications and do not preclude compliance with the performance requirements of the standards (only the details of the measurement methods are different).
        Download PDF(485 kB) »
      • Aplicaciones de calidad deenergía sincronizada
        Este artículo describe los métodos desarrollados en Arbiter Systems, Inc. para realizar mediciones sincronizadas de calidad de energía utilizando métodos similares a los utilizados en las PMUs. Estos métodos difieren necesariamente de las normas internacionales aceptadas, pero las variaciones son justificadas para estas aplicaciones y no impiden el cumplimiento de los requisitos de rendimiento de las normas (sólo los detalles de los métodos de medición son diferentes).
        Download PDF(3 MB) »
      • IRIG-B Time Code Accuracy and Connection Requirements.
        IRIG-B Time Code Accuracy and Connection Requirements with comments on IED and system design considerations.
        Download PDF(31 kB) »

    • Application Notes/Option Information

      • Accurate CT Calibration for the Model 1133A
        Explaining how Model 1133A can provide accuracy of 0.025 % by proper calibration of the Current Transformer (CT)
        Download PDF(44 kB) »
      • Convention for Energy and Sequence Components
        Discussion of conventions followed in Model 1133A Power Sentinel™ in determining the various power, energy and sequence components.
        Download PDF(38 kB) »
      • Direction of Harmonics and Flicker
        How Arbiter products can determine the "direction" of harmonic power flow, and how to deal with flicker
        Download PDF(27 kB) »
      • Model 1133A Definitions of Energy Flow
        Adapted from the "Handbook for Electricity Metering." 9th Ed, p. 228, ff., Edison Electric Institute
        Download PDF(33 kB) »
      • Model 1133A: Extended Calibration Interval
        Discusses how Model 1133A Power Sentinel™ employs a design philosophy that is based on the use of a small number of critical and highly-stable components in
        its signal paths, resulting in a low and predictable drift rate
        Download PDF(28 kB) »
      • Model 1133A Phasor Measurement Specifications
        Detailed information regarding Model 1133A and phasor measurement specifications
        Download PDF(2 MB) »
      • Model 1133A Power Sentinel™ Functional Description, Español
        Spanish version of Functional Description document for Model 1133A.
        Download PDF(155 kB) »
      • Model 1133A Power Sentinel™ Functional Description
        Overview of key components of Model 1133A Power Sentinel™
        Download PDF(69 kB) »
      • Remote GPS Receiver for Model 933A
        Overview and specifications of the Remote GPS Receiver for Model 933A
        Download PDF(392 kB) »
      • Synchronizing End-to-End Relay Testing with the Model 1088B Satellite-Controlled Clock
        Summary of synchronizing end-to-end relay testing using Model 1088B, to improve utilization of existing transmission lines
        Download PDF(18 kB) »
      • Triggering in the Model 1133A Power Sentinel™ DSP
        Using digital signal processing (DSP) in Model 1133A to measure parameters of the output signal, and triggering an alarm condition, based on preset conditions
        Download PDF(39 kB) »
      • What is Absolute Phase Angle?
        Summary of how Model 1133A measures phase angles and the impact of employing precision GPS satellite based timing on those measurments.
        Download PDF(26 kB) »
      • Using SensorLink Litewires with the Model 933A
        The Model 933A is designed for use on low voltages but it also can measure higher voltages by using PTs and CTs. The SensorLink LiteWires provide a portable PT and CT that easily adapt to the 933A and have been evaluated in Arbiter's Laboratories. LiteWires are designed to measure primary voltage and current, and as such are not to be left unattended. However, they are an excellent way to capture primary waveforms.
        Download (1 MB) »

    • Test Results

      • AEP-IEC 687 Certification Tests for Model 1133A
        Results of multiple tests on Model 1188A Power Sentinel™ as performed by AEP (American Electric Power)
        Download PDF(2 MB) »
      • Comparative Testing of Synchronized Phasor Measurement Units
        Report summarizing the results of a comparative testing done on four Phasor Measurement Units ( PMU ) from different manufacturers.
        Download PDF(112 kB) »

    • General/Other

      • Press Release: Leap Second Anomaly December 2016
        A firmware update is required for the following models to correctly apply the leap second addition on December 31, 2016.
        Download PDF(70 kB) »

  • Power Measurement and Calibration

    • Manual/Training

    • Data Sheet

      • Model 1040C/CU Data Sheet
        Provides specifications for the Model 1040C/CU.
        Download PDF(402 kB) »
      • Model 1040C/CU Data Sheet-Español
        Provides specifications for the Model 1040C/CU en Español.
        Download PDF(146 kB) »
      • Model 921A Data Sheet
        Provides specifications for the Model 921A.
        Download PDF(101 kB) »
      • Model 928A Data Sheet
        Model 928A Power System Multimeter overview and specifications.
        Download PDF(652 kB) »
      • Model 928A Data Sheet Español
        Model 928A Power System Multimeter overview and specifications.
        Download PDF(684 kB) »
      • Model 928A Calibration Report vs Certificate of Compliance
        Explains the difference between the 928A Calibration Report included with the unit and the Certificate of Compliance that requires an extra fee.
        Download PDF(426 kB) »
      • Model 931A Data Sheet
        Overview of Model 931A Power System Analyzer featuring PowerDSA™ Digital Signal Analysis.
        Download PDF(647 kB) »
      • Model 929A/930A/931A Data Sheet
        Overview of Models 929A Three Phase Power Meter, 930A Three Phase Power Analyzer and 931A Power System Analyzer all featuring PowerDSA™ Digital Signal Analysis.
        Download PDF(1 MB) »
      • Model 929A/930A/931A Data Sheet Español
        Provides specifications for the Model 929A/930A/931A en Español.
        Download PDF(188 kB) »

    • White Papers

      • TCG Measurement Comparison
        Comparison of TCG measurements made with the Arbiter Systems, Inc. Model 921A Combustible Gas Meter, the McGraw-Edison TCG Meter, and Oil Sampled GC measurements
        Download PDF(14 kB) »

    • Application Notes/Option Information

      • App Note 110: Measuring Low-Level Signals w/Model 931A
        Discusses numerous factors in the design of an instrument such as the Model 931A which can affect performance in measuring low-level signals.
        Download PDF(25 kB) »
      • App Note 113: Using Clamp-On Current Transfomers (CTs) with Arbiter Power Analyzers
        This application note deals with extending the current measuring range of the Arbiter Models 931A, 930A and the Model 929A power
        analyzers.
        Download PDF(89 kB) »
      • Logging Files from the Model 931A Power System Analyzer
        How to download data stored in the Model 930A and Model 931A memory, and the measurement results directly to a computer.
        Download PDF(142 kB) »
      • Model 921A combustible Gas Meter Filter Replacement Instructions
        Filter Replacement Instructions for Model 921A Combustible Gas Meter
        Download PDF(132 kB) »
      • Model 921A Sensor Change Update
        Model 921A has different characteristics because it now uses a different catalytic bead sensor.
        Download PDF(27 kB) »
      • Training: Calibrating Meters and Transducers with Model 1040C/CU
        Part 2 of Training manual for Model 1040C Panel meter Calibrator: Calibrating Meters and Transducers
        Download PDF(270 kB) »
      • Training: Model 1040C Panel Meter Calibrator
        Part 1 of Training manual for Model 1040C
        Download PDF(344 kB) »
      • Using SensorLink Litewires with the Model 928A
        The Model 928A is designed for use on low voltages but it also can measure higher voltages by using PTs and CTs. The SensorLink LiteWires provide a portable PT and CT that easily adapt to the 933A and have been evaluated in Arbiter's Laboratories. LiteWires are designed to measure primary voltage and current, and as such are not to be left unattended. However, they are an excellent way to capture primary waveforms.
        Download (277 kB) »

    • General/Other

      • Model 928A Current Input Connector Upgrade
        The Model 928A Power System Multimeters shipped after 2015 feature a redesigned current input.
        Download PDF(328 kB) »
      • Model 928A CT Compression Ring Installation
        Describes the installation process of the CT cable compression ring to defeat the connector locking mechanism.
        Download PDF(646 kB) »
      • Model 09311A 400 Amp Auxiliary Current Transformer
        Over and specifications of Model 09311A 40 Amp Auxiliary Current Transformer
        Download PDF(252 kB) »
      • Model 09311A 400 Amp Auxiliary Current Transformer Español
        Provides specifications for the Model 09311A en Español.
        Download PDF(125 kB) »
      • Overview Presentation of Model 931A Power System Analyzer
        Seminar presentation introducing Model 931A Power System Analyzer.
        Download PDF(732 kB) »

    • Material Safety Data Sheet (MSDS)

  • Assembled Test Leads

    • Data Sheet

      • Test Leads Data Sheet
        Provides an overview of the available test leads.
        Download (255 kB) »
      • Isolator Paddles Data Sheet
        The Isolator Paddles are intended for temporary separation of series current-jack poles for testing.
        Download PDF(598 kB) »

    • Application Notes/Option Information

      • Isolation Paddle Application Note
        Describes the use of the Model 841A, Model 842A, and Model 842B Isolation Paddles.
        Download (175 kB) »

  • Fiber-Optic/Copper Signal Adapters

    • Manual/Training

      • Model 10884A Operating Instructions
        These instructions cover the specifications and operation of the Model 10884A, IRIG-B Distribution Terminator. When connected to a system bus, the Model 10884A is used to provide a termination at one end of any linear distribution bus supporting your system loads.
        Download (581 kB) »

    • Data Sheet

      • Model 10881A Data Sheet
        Describes how Model 10881A supports transmission of a digital signal over several kilometers and upon receiving, fore the conversion to a + 5 V CMOS logic level output signal.
        Download PDF(1 MB) »
      • Model 10882A Data Sheet
        Provides specifications for the Model 10882A.
        Download PDF(233 kB) »
      • Model 10887A Data Sheet
        Provides specifications for the Model 10887A en Español.
        Download PDF(1 MB) »
      • Model 10888A Data Sheet
        Provides specifications for the Model 10888A.
        Download PDF(653 kB) »
      • Model 10889A Data Sheet
        Provides specifications for the Model 10889A.
        Download PDF(544 kB) »
      • Self-Monitor, IRIG-B Distribution System, and Second RS-232
        Overview of IRIG-B Distribution System
        Download PDF(19 kB) »

    • Application Notes/Option Information

      • Distributing Timing Signals in a High-EMI Environment
        Overview of challenges and solutions when distributing timing signals in difficult environments, such as electromagnetic interference (EMI)
        Download PDF(68 kB) »
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