You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.
Innovative circuit designs
Stringent component selection
Ultimate in accuracy, speed, repeatability, programmability, and reliability

NAI’s instruments are field-proven over many years of use and have become the industry standard. All of NAI’s production, test, and inspection personnel are certified to IPC-A-610 standards via the American Society for Quality (ASQ), and our equipment calibration procedures meet the requirements of ANSI/NCSL-Z540, utilizing standards traceable to NIST.

Angle Position Indicators

NAI offers a wide variety of Angle Position Indicators (APIs) that perform high quality analog-to-digital conversions of Synchro or Resolver data. These measurement instruments deliver industry-leading performance in a variety of accuracy and resolution grades, with various packaging options available. Multiple communication control interfaces include:

  • Touch screen
  • Front panel
  • Optical mouse
  • IEEE-488
  • Ethernet
  • USB

NAI also offers form, fit, and function replacements for the obsolete DDC angle position indicator models AP-30610, AP-30611, AP-30710, AP-30711, and AP-30712. All of the Angle Position Indicators are ideally suited for defense, commercial aerospace, and industrial applications.

Angle Position Indicators Model 8810A
8810A
  • Form Factor: Bench & Rackmount
  • Front Panel Type: High-Res Touch Screen
  • Internal Reference: Optional 2.2 VA
  • Resolution: 0.0001°
  • Accuracy: Up to ±0.0015°
  • Signal Voltage Range: 1 to 90 VL-L Auto Ranging
  • Reference Voltage Range: 2 to 115 Vrms
  • Frequency Range: 47 Hz to 20 kHz
  • Interfaces: Ethernet, USB, IEE-488 & Parallel Ports
  • Other: Two Speed Operation, Auto Phase Correction, Velocity & DC Angle Output

Angle Position Indicators Legacy API Manuals
Legacy API Manuals
  • Other: Models 800, 801, 8300, 8500, 8800 & 8810

Phase Angle Voltmeters

Since the development of the first Phase Angle Voltmeter (PAV) over 50 years ago, North Atlantic Industries has been the industry leader in AC Measurement Instrumentation. Our name has become synonymous with innovation and quality. Our products, specifically designed for defense, commercial aerospace, and industrial applications, deliver industry-leading accuracy, repeatability, and reliability.

NAI’s units of today are actually multifunction Digital Analyzing Voltmeters that combine a complete Voltmeter, a Phase Angle Voltmeter, and a Waveform Signal Analyzer in a single microprocessor-based instrument. With these versatile and flexible instruments, a wide range of tests can be performed, either manually using the front panel controls or automatically using the IEEE-488 bus. Designed for the Synchro/Resolver and LVDT/RVDT marketplace, NAI’s Voltmeters are used in a variety of applications. They are capable of measuring:

  • Phase angle
  • Total voltage
  • Fundamental voltage
  • In-phase voltage
  • Quadrature
  • Frequency analysis voltage
  • Signal to reference ratio
  • Harmonic distortion


Improtant Note Regarding Models 2250 & 2251

North Atlantic Industries has been manufacturing the 2250 and 2251 Phase Angle Voltmeters for 20+ years. Over the past several years, NAI has worked hard to manage component issues, but has now encountered multiple component obsolescence issues which cannot be managed. As a result, we have found it necessary to discontinue the 2250 and 2251 Phase Angle Voltmeters which you may have previously purchased.

Because of these issues, NAI was not able to offer a “last time” purchase opportunity. We are, however pleased to inform you that our next generation Phase Angle Voltmeter, model 2250A is soon to be released as an alternate product at the link below.

NAI will continue to support repairs and calibration of the 2250 and 2251 to the best of our ability, subject to availability of components. There may be instances when a unit may not be repaired. If this unit has this type of issue, you will be notified upon evaluation.

NAI values your business and looks forward to working with you through this obsolescence issue.

Phase Angle Voltmeter Model 2250A
2250A
  • Form Factor: Bench & Rackmount
  • Front Panel Type: High-Res Touch Screen
  • Internal Reference: Optional 6 VA
  • Phase Resolution: 0.0001°
  • Phase Accuracy: Up to ±0.01°
  • Signal Voltage Range: 50 MV to 500 Vrms
  • Reference Voltage Range: 50 MV to 500 Vrms
  • Frequency Range: 10 Hz to 1 MHz
  • Interfaces: Ethernet, USB & IEEE-488

Phase Angle Voltmeter Legacy PAV Manuals
Legacy PAV Manuals
  • Interfaces: 321, 213C, 2250 & 2251 Manuals

Synchro/Resolver Simulators

NAI offers a wide variety of Synchro/Resolver Standards and Simulators that can be used as standards for calibrating and testing Automatic Test Equipment (ATE) or for measuring the static or dynamic characteristics of Angle Position Indicators (APIs) and Synchro-to-Digital Converters. Features include up to 2 arc-second accuracy, programmable parameters, and 3.0 VA output. Ideally suited for defense, commercial aerospace, and industrial applications, these measurement instruments deliver industry-leading performance in a variety of accuracy and resolution grades, with various packaging options.

Synchro/Resolver Simulators Model 5300A
5330A
  • Form Factor: Bench & Rackmount
  • Front Panel Type: High-Res Touch Screen
  • Internal Reference: Optional 6 VA
  • Resolution: 0.001°
  • Accuracy: Up to ±0.005°
  • Signal Voltage Range: 1 to 90 VL-L Auto Ranging
  • Reference Voltage Range: 2 to 115 Vrms
  • Frequency Range: 47 Hz to 10 kHz
  • Interfaces: Ethernet, USB, IEEE-488 & Parallel Ports
  • Other: Two Speed Operation, Dynamic Angle Modes

Synchro/Resolver Simulators Model 5300
5300
  • Form Factor: Bench & Rackmount
  • Front Panel Type: LED
  • Internal Reference: 4 VA
  • Resolution: 0.0001°
  • Accuracy: 0.00015°
  • Signal Voltage Range: 1 to 90 VL-L Auto Ranging
  • Reference Voltage Range: 2 to 115 Vrms
  • Frequency Range: 47 Hz to 20 kHz
  • Interfaces: IEEE-488
  • Other: Synchro/Resolver Standard Accuracy & Resolution

Synchro/Resolver Simulators Legacy Simulator Manuals
Legacy Simulator Manuals
  • Other: 5310 & 5330 Operations Manuals

Synchro/Resolver Calibration STD & Simulator

NAI’s innovative Synchro/Resolver Calibration Standard and Simulator, the model 5300, can be used to calibrate the most accurate Angle Position Indicators and Synchro/Resolver-to-Digital Converters. Ideally suited for defense, commercial aerospace, and industrial applications, this programmable instrument delivers industry-leading accuracy, repeatability, and reliability.

Synchro/Resolver Calibration STD and Simulator Model 5300
5300
  • Form Factor: Bench & Rackmount
  • Front Panel Type: LED
  • Internal Reference: 4 VA
  • Resolution: 0.0001°
  • Accuracy: 0.00015°
  • Signal Voltage Range: 1 to 90 VL-L Auto Ranging
  • Reference Voltage Range: 2 to 115 Vrms
  • Frequency Range: 47 Hz to 20 kHz
  • Interfaces: IEEE-488
  • Other: Synchro/Resolver Standard Accuracy & Resolution

Synchro/Resolver Calibration STD and Simulator Legacy Calibration Standard Manuals
Legacy Calibration Standard Manuals
  • Other: 5300, 530, 530/20, 540/10 & 540/20 Manuals

VXI Instruments

NAI offers a wide range of COTS and custom VXI-based Instruments. These boards are specifically designed for defense, commercial aerospace, and industrial applications. Our DSP-based designs offer very high function density, high resolution and accuracy, and low power consumption. Standard features include extensive diagnostics, Background Built-In-Test (BIT), auto-ranging of signal inputs, self-calibration, galvanic isolation, and field programmable parameters. A VISA PNP Software Support Kit (SSK) is provided to facilitate application development.

VXI Instruments Model 65CS4
65CS4
  • Function: Synchro/Resolver Measurement & Stimulus
  • Voltage Range: 1.0 to 90 VL-L
  • Frequency Range: 47 Hz to 4,000 Hz, 47 Hz to 10 kHz or 20 kHz
  • Excitation/Reference Supply: 2 to 115 Vrms
  • Number of Channels: 4 Measurement Channels 4 Stimulus Channels
  • Other: 5410C-89 Replacement

VXI Instruments Model 65DL2
65DL2
  • Function: LVDT/RVDT Outputs
  • Voltage Range: 24 Vrms
  • Frequency Range: 360-20 kHz
  • Excitation/Reference Supply: 2 to 28 Vrms
  • Number of Channels: 8 Channels or 12 Channels contact factory
  • Other: 5410C-83 Replacement

VXI Instruments Model 65LD1
65DL1
  • Function: LVDT/RVDT Outputs
  • Voltage Range: 34 Vrms
  • Frequency Range: 360-1500 Hz
  • Excitation/Reference Supply: 2 to 28 Vrms
  • Number of Channels: 16 Channels

VXI Instruments Model 65DA2-55
65DA2-55
  • Function: Digital-to-Analog (DC) Outputs
  • Voltage Range: ±10 VDC or ±16.3835 VDC
  • Frequency Range: N/A
  • Excitation/Reference Supply: N/A
  • Number of Channels: 12 Channels
  • Other: 5410C-55-3 Replacement

VXI Instruments Model 5388
5388
  • Function: S/D & D/S
  • Voltage Range: 2 to 115 VAC
  • Frequency Range: 47 Hz to 10 kHz
  • Excitation/Reference Supply: None
  • Number of Channels: 2 Channels

VXI Instruments Model 65VP1
65VP1
  • Function: Analog-to-Digital/Digital-to-Analog
  • Voltage Range: N/A
  • Frequency Range: N/A
  • Excitation/Reference Supply: N/A
  • Number of Channels: 6 Channels
  • Other: Video Pattern Generation