Yokogawa AC Voltage Current Standard, 2558A
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2558A AC Voltage Current Standard

Brand: Yokogawa

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 wattmeters, 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 - Maximum

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, Maximum

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) - Maximum
  • 40 to 120% - Condition
  • 72 A, Maximum

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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