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Yokogawa AC Voltage Current Standard, 2558A

2558A AC Voltage Current Standard

Brand: Yokogawa Electric Corporation
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The 2558A is a cost-effective, high-precision instrument capable of outputting a wide range of AC voltages and currents for the calibration of AC measurement devices such as analog watt meters, power meters, clamp-on testers, and current transformers. 

Intuitive front panel controls and various computer interfaces enable the 2558A to be operated manually or become integrated into an larger system.
Features
  • Voltage, Current, and Frequency sweeping
  • Output Divider
  • Direct Readout of the Deviation
  • Digital Display of Output
  • Common Current Output Terminals

Specifications

Brand

Accuracy

  • ± (0.03 % of Setting + 0.01 % of Range), 50/60 Hz - AC Voltage
  • ± (0.04 % of Setting + 0.01 % of Range), 50/60 Hz - AC Current
  • ± (0.05 % of Setting + 0.01 % of Range), 40 ≤ F ≤ 400 Hz - AC Voltage
  • ± (0.06 % of Setting + 0.01 % of Range), 40 ≤ F ≤ 400 Hz - AC Current
  • ± (0.10 % of Setting + 0.02 % of Range), 400 < F ≤ 1 kHz - AC Voltage
  • ± (0.12 % of Setting + 0.02 % of Range), 400 < F ≤ 1 kHz - AC Current
  • ± 0.013 % of Range, 50/60 Hz - AC Voltage
  • ± 0.014 % of Range, 50/60 Hz - AC Current
  • ± 0.015 % of Range, 40 ≤ F ≤ 400 Hz - AC Voltage
  • ± 0.016 % of Range, 40 ≤ F ≤ 400 Hz - AC Current
  • ± 0.03 % of Range, 400 < F ≤ 1 kHz - AC Current
  • ± 0.032 % of Range, 400 < F ≤ 1 kHz - AC Current
  • ± 0.04 % for AC Voltage - High Accuracy
  • ± 0.05 % for AC Current - High Accuracy
  • ± 100 ppm (1-Year): Internal
  • ± 400 ppm - AC Voltage
  • ± 50 ppm (180 Days): Internal
  • ± 500 ppm - AC Current

Applications

  • Higher Current Output
  • Power Calibration

Approvals & Certifications

  • AS
  • BS
  • CE
  • CSA
  • GB
  • IEEE 802.3, 488-1978
  • ISO 14001
  • NBR
  • UL
  • VDE

Communication

  • 100Base-TX
  • 10Base-T

Consumption

  • 200 VA - Max.

Current

  • 60 A Main Setting

Display

  • 2-Digits LED - Output Divider
  • 4-Digits LED - Deviation
  • 5-Digit LED - Main Setting & Output
  • 6-Digits LED - Frequency/Phase
  • 7-Segment LED Provide Clear Visibility

Electrical Connectors

  • Current: Large Binding Post
  • RJ45 Connector
  • Typical B Connector
  • Voltage: Plug-In Terminal

Frequency

  • 20 to 1,000 Hz: Frequency Meter
  • 40 to 1,000 Hz
  • 48 to 63 Hz: Allowable Power Supply Frequency Fluctuation Range
  • 50/400 Hz: Internal
  • 50/60 Hz: Rated Power Supply

Function

  • Output Divider
  • Using Sweep
  • With the Deviation Function, The, Max.

Humidity

  • 20 to 80 % Relative Humidity, Non-Condensing - Operating, Storage Environment & Output

Input

  • 3 ± 0.1 Vrms for 2-Phase Sine Wave - External I/O Voltage

Interface Connection

  • Ethernet
  • GP-IB
  • USB Connection

Media

  • Indoor - Installation Locations

Mounting

  • Rack-Mounted

Operating Temperature

  • 5° to 40° C (41° to 104° F)

Operation

  • Two Dials

Output

  • 0.07 % or Less - Voltage
  • 0.18 % or Less - Current
  • 1 mA-60 A - AC Current
  • 1 mV-1,200 V - AC Voltage
  • 3 ± 0.1 Vrms for 2-Phase Sine Wave - External I/O Voltage
  • 36 VA (60 A / 0.6 V) - Max.
  • 40 to 120 % - Condition
  • 72 A, Max.

Range

  • 100 mA-50 A for Internal Oscillator Frequency
  • 100 mV-1,000 V for Internal Oscillator Frequency

Resistance

  • Approximately 1 Megaohm - Input Resistance
  • Approximately 50 ohms - Output Resistance

Resolution

  • 0.001 Hz VAR
  • 10 µA to 10 mA
  • 10 µV-100 mV
  • Resolution of the First Dial: 0.2 % of the Main Setting
  • Resolution of the second Dial: 0.01 % of the Main Setting

Response Time

  • 8 to 64 seconds Approximately Speed - Selectable During 0 to 100 %, 100 to 0 % of Setting

Stability

  • ± (20 ppm of Setting + 30 ppm of Range)
  • ± 50 ppm/h for AC Voltage/Current - High Stability

Storage Temperature

  • -15° to 60° C (5° to 140° F)

Supply Voltage

  • 100-120 Vac: Rated Power Supply Voltage
  • 180-264 Vac: Allowable Power Supply Voltage Fluctuation Range
  • 200-240 Vac: Rated Power Supply Voltage
  • 3 ± 0.1 Vrms: External Input/Output Voltage, 2-Phase Sine Wave
  • 90-132 Vac: Allowable Power Supply Voltage Fluctuation Range

Temperature Coefficient

  • ± (30 ppm of Setting/°C) at 5° to 20° C (41° to 68° F), 20° to 40° C (68° to 104° F) - 50/60 Hz
  • ± (50 ppm of Setting/°C) at 5° to 20° C (41° to 68° F), 20° to 40° C (68° to 104° F)

Temperature Range

  • 23° ± 3° C (73.4° ± 5.4° F)

Update Time

  • 1 Minute to 1-Hour after Output ON
  • 30 minutes Warm-Up Time

Documentation

Product Manuals

Brochure

Product Drawing

Specification

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