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North Atlantic 2251

Digital Analyzing Phase Angle Voltmeter

Multi-Function, High Accuracy, Digital Analyzing Phase Angle Voltmeter


  • Digital Analyzing Voltmeter
  • Versatile AC measurement tool
  • Voltage Modes 4-1/2 digits
  • Voltage from 20mV to 300V in 6 ranges
  • Phase Angle display to 0.01
  • Frequency Display 3 digits
  • Phase Angle Mode 0.00 to 360.00 or 180.00
  • 0.05 % Phase Angle and ratio accuracy
  • 10 Hz to 100 kHz frequency response
  • Network/waveform analyzers-like features
  • Highly accurate ratio measurements
  • Phase-sensitive and voltage modes ratio
  • Measure percent Total Harmonic Distortion
  • Display magnitude and phase of selected harmonic
  • Computes the % signal deviation from reference
  • "Relative" measurements



This North Atlantic 2251 is in very good physical condition and performed fine during testing.


2251-S3428 Performance Characteristics
Form Factor: Benchtop
Type: DVM
Number of Digits (Max): 4.5 digits
DC Volts Minimum Range: 20 mV
DC Volts Maximum Range: 300 V
DC Volts No. of Ranges: 6 QTY
DC Volts Range Steps: 1/10/100
Minimum Frequency: 10 Hz
Maximum Frequency: 100 kHz
Connector Type to DUT: Sig Input - MS3106A-14S-2S
2251-S3428 Programmability/Connectivity
User Interface: Proprietary
Ports to Peripheral Devices: Ref Output- MS3106A-14S-2S Rec Output - MS3106A-14S-2P Trigger- BNC (Male) Remote Interface - IEEE-488
Programming Language: SCIP
2251-S3428 Warranty/Calibration
Calibration Period: 1yr
2251-S3428 Compliance
UL Compliance: Compliant
2251-S3428 Power Requirements
Input Power: 115/220 Vrms 15%, 47-67 Hz, 70 VA, Fused 2A at 115 Vrms; 1A at 220 Vrms


As our many customers will attest, we will do our very best to resolve any customer problems.  But our official policy is: 

  • All items sold are guaranteed against D.O.A. only. 
  • All claims must be made within 3 days of receipt. 
  • All warranties are void if the calibration / warranty seals are broken.



Shipping Policy

Buyer will pay $35.00 packing and shipping in the continental United States.  We will make every effort to ship within 24 hours of receipt of payment.  We ship with FedEx & UPS only.  We will be glad to ship with other carriers using the purchasers shipping account.  Please contact us to make any special shipping arrangements. For shipping rate research, our shipping address is Boulder, CO USA ---- Zip Code is 80305.

Foreign buyers:  Unless special provisions have been made, you are responsible for making your own shipping arrangements and all costs related to customs, duties & special packaging requirements.  Please do not ask us to quote you international shipping rates.  Use the address information above to research you own shipping rates.  You can email to get the packaging fee, package weight and size for your research.  Items sold outside the USA are sold as is.  



 Payment Policy

We accept Credit Card payment through Paypal.   We accept Cashiers Check or Money Orders.



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The equipment shown is a representation only.  We often have multiple units in stock so please email us with your needs.  We have a large inventory and can usually find any test and measurement item in a short time frame.------Inquires