Yokogawa 2558A AC Voltage Current Standard

Product Overview:

The 2558A AC Voltage Current Standard offers users the simple operation and reliability customers have come to trust from Yokogawa.
  • Sweep (Voltage/Current/Frequency)
  • Output Divider
  • Direct Readout of the Deviation
  • Digital Display of Output
  • Common Current Output Terminals
  • High Accuracy
  • High Stability
  • Wide Output Range
  • Wide Frequency Range
The wide output ranges of 1.00 mV to 1200.0 V AC and 1.00 mA to 60.00 A AC mean that the 2558A is the instrument of choice for the cost effective calibration of AC analog meters. Rotary controls and a range of computer interfaces enable the 2558A to be intuitively operated through the frontpanel or controlled by an ATE system.

More

The 2558A is a low-cost, high-precision instrument capable of outputting a wide range of AC voltages and currents for the calibration of electric meters and other devices. In terms of accuracy and other performance characteristics, this new model is a significant upgrade from our previous model, the 2558 AC voltage current standard, which was introduced in 1979 and discontinued in 2003.



Providing output ranges of 1.00 mV to 1200.0 Volts AC, and 1.00 mA to 60.00 Amps AC makes the 2558A the product of choice for the cost effective calibration of AC analog meters and other AC measuring instruments. Front panel controls and various computer interfaces enable the 2558A to be intuitively operated manually or controlled by an ATE system.

High Accuracy

AC Voltage: +/- 0.04 %
AC Current: +/- 0.05 %

The 2558A AC Voltage Current Standard is more than sufficient to calibrate meters with a class 0.1 % accuracy.

10 to 120 % of range

+/- (% of setting + % of range)
 
50/60 Hz

40 ≤ f ≤ 400 Hz

400 < f ≤ 1 kHz

AC Voltage
0.03 + 0.01*
0.05 + 0.01
0.10 + 0.02
AC Current
0.04 + 0.01*
0.06 + 0.01
0.12 + 0.02

* Add 0.1% of range when output is 120% to 144%.

1 to 10% of range
+/- (% of range)
 
50/60 Hz
40 ≤ f ≤ 400 Hz
400 < f ≤ 1 kHz
AC Voltage
0.013
0.015
0.03
AC Current
0.014
0.016
0.032

 

High Stability

AC Voltage/Current: +/- 50 ppm/h

+/- (20 ppm of range + 30 ppm of range)/h

Perform measurements with high repeatability over time

 

Wide Output Range

AC Voltage: 1.00 mV to 1200.0 V 
AC Current: 1.00 mA to 60.00 A

6 voltage ranges (100 m/1/10/100/300/1000 ([V]))
4 current ranges (100 m/1/10/50 ([A]))

The generation range is 0 to 144 % of range

 

Wide Frequency Range

40 to 1000 Hz (Frequency accuracy: +/- 50 ppm)

The 2558A provides fixed frequencies of 50/60 Hz (commercial) and 400 Hz (marine and aviation), as well as variable frequencies from 40 to 1000 Hz.

The high frequency accuracy of the 2558A (50 ppm) also enables it to be used to calibrate frequency meters.

Multiple 2558A units can be synchronized using the internal phase shifter. This means that two 2558As can be used as accurate sources of voltage and current for calibrating power meters.

Calibration & Meter Testing

The 2558A provides specific functions to enable meters to be calibrated accurately and efficiently.

Using the output divider and deviation

Calibrating two or more points is quick and simple. It is only necessary to preselect the number of required calibration points with the lower divider control and then use the upper control to step the output to the next calibration point. The deviation settings will then enable the output value and error of each calibration point to be displatyed directly.

Front



Using the output divider and deviation preset

The deviation preset control can be used to move the output value in small increments (2 or 5 % of the step between calibration points).

This means that it is possible to finely approach the target calibration point, either from a lower value or a higher one, without exceeding it. This is particularly useful when the friction (hysteresis) of the moving part needs to be taken into consideration. In this case, the point is calibrated twice, once from a lower value and once more from a higher value and the final calibration result is the average of the two.

Guage



Using sweep

Needle sticking tests can be performed with high repeatability. It is possible to stop at any point and sweep around it in fine detail.

Sweep

Power Calibration

A power calibration system can be created by using two 2558As (one each for AC voltage and AC current) together with a Yokogawa WT3000 power analyzer as the reference.

One of the 2558As acts as the master unit and provides the synchronizing oscillator signal. The required power factors is set by adjusting the phase shifter on the slave unit and monitoring the result on the WT3000. A 3 phase power calibrator system can be simply built by adding further 2558As.

Synchronizing

Higher Current Output

To generate higher current than 72 A, two 2558As can be connected to double the output to 144 A.

Condition:

  • Accuracy, stability, temperature coefficient is the sum of the individual units.
  • 50/60 Hz only.

High Current

Use Existing 2558 Programs

The 2558A is backwardly compatible with the previous 2558 Model. The new 2558A supports a 2558 command mode, which means that you can switch from the 2558 to the 2558A without modifying your program. It is also possible to mix 2558s and new 2558As in the same system.

I Ok

Comparison with the 2558

    2558A
2558
AC Voltage
Output range of the specified accuracy
1.00 mV to 1200.0 V
1.00 mV to 1200.0 V
Accuracy (50/60 Hz)
+/- 400 ppm
+/- 950 ppm
Frequency of the specified accuracy
40 to 1000 Hz
50 /60 /400 Hz
AC Current
Output range of the specified accuracy
1.00 mA to 60.00 A
1.00 mA to 60.00 A
Accuracy (50/60 Hz)
+/- 500 ppm
+/- 950 ppm
Frequency of the specified accuracy
40 to 1000 Hz
50 /60 /400 Hz
Frequency
Output range
40 to 1000 Hz
40 to 500 Hz
Accuracy
+/- 50 ppm
+/- 1%
Max. Output
Approx. 36 VA (60 A/0.6 V)
Approx. 36 VA (60 A/0.6 V)
Stability
+/- (20 ppm of setting + 30 ppm of range)/h
+/- (0.03% of range)/h
Dimensions (mm)
426 (W) x 132 (H) x 400 (D)
439 (W) x 149 (H) x 415 (D)

Front of Unit Specifications

Front Of Unit Corrected

Back of Unit Specifications

 Rear Panel 2

Output

Range
Output Range
Specified Output Range*
Resolution
Maximum Output
100 mV
0 to 144.00 mV
1 to 120.00 mV
10 uV
---
1 V
0 to 144.00 mV
0.01 to 1.2000 V
100 uV

0.5 A or more

10 V
0 to 14.400 V
0.1 to 12.000 V
1 mV
Approx. 3 A
100 V
0 to 144.00 V
1 to 120.00 V
10 mV
Approx. 0.3 A
300 V
0 to 432.0 V
3 to 360.0 V
100 mV
Approx. 0.1 A
1000 V
0 to 1440.0 V
10 to 1200.0 V
100 mV
Approx. 6 mA
100 mA
0 to 144.00 mA
1 to 120.00 mA
10 uA
Approx. 15 V
1 A
0 to 1.4400 A
0.01 to 1.2000 A
100 uA
Approx. 15 V
10 A
0 to 14.400 A
0.1 to 12.000 A
1 mA
Approx. 3 V
50 A
0 to 72.00 A
0.5 to 60.00 A
10 mA
Approx. 0.6 V

* 1% to 144% of range when frequency is 50 or 60 Hz.

Accuracy

 

Upper: 180 Days

Lower: 1 Year

 
10 % to 120% of range
1% to 10% of range
 
+/- (% of setting + % of range)

+/- (% of range)

Range
50/60 Hz
40 Hz ≤ f ≤ 400 Hz
400 Hz < f ≤ 1 kHz
50/60 Hz
40 Hz ≤ f ≤ 400 Hz
400 Hz < f ≤ 1 kHz
100 mV

0.03 + 0.01*

0.04 + 0.01*

0.05 + 0.01

0.06 + 0.01

0.10 + 0.02

0.11 + 0.02

0.013

  0.014

0.015

0.016

0.030

0.031

1 V
10 V
100 V
300 V
1000 V
100 mA

0.04 + 0.01*

0.055 + 0.01*

0.06 + 0.01

0.075 + 0.01

0.12 + 0.02

0.135 + 0.02

0.014

0.0155

0.016

0.0175

0.032

0.0335

1 A
10 A
50 A

* Add 0.1% of range when output is 120% to 144% of range.

 

Firmware

Software

Name Description  
LabVIEW drivers for 2558A LabVIEW drivers for 2558A y-Link
Sample programs for 2558A Sample communication programs (VB .NET/VC++) for 2558A y-Link
TMCTL TMCTL is a DLL to support development of custom software. By using this DLL, users can write original programs to control instruments from a PC. y-Link
USB Driver The USB Driver is needed when required by the software. y-Link

LCAReduced energy, emission of CO2, NOx and SOx about 50% compared to the previous model.

PDF Results of Life Cycle Assessment.

More Product Information

  • Available in Single or Dual output type
  • Onsite selectable output type (DC current / DC voltage)
  • Accuracy class 0.2 (IEC/ EN 60 688)
  • Seven segment LCD display
  • RS-485(Modbus) communication

The GS200 is a low voltage/current DC source with high accuracy, high stability, and high resolution. With its excellent traceability, stability, and 5 1/2-digit resolution, the GS200 generates extremely low-noise DC voltage and current signals that are required for many applications. Additionally, the optional monitoring feature turns the GS200 into a voltage and current measuring instrument.
General Specifications
  • Voltage source up to ±32 V and current source up to ±200 mA
  • 51/2-digit, 120000-count output resolution
  • Voltage and current simple monitoring feature (optional)
  • Programmable output up to 10,000 points
  • Built-in USB mass storage device
  • Channel expansion through synchronous operation

The Model 2560A is a simple, precise and cost effective solution for calibrating DC measuring instruments such as analog meters, thermometers, temperature transmitters and data loggers
The 2560A Precision DC Calibrator offers high voltage and high current generation and intuitive operation for the analog meters calibration.
  • Wide output range of voltage and current generation
  • Dials and switches for each digit and function
  • High accuracy, stability, and resolution
  • Various effective functions for analog meters calibration.
With output ranges of 100 mV to 1000 V and 100 µA to 30A, plus 10 different types of Thermocouples and Pt100 RTD, the 2560A can effectively solve the calibration requirements for DC Analog Meters and various temperature measuring instruments and controllers.

Key Features
  • Precision Voltage and Current Source 
  • 4500VA to 13500VA Output
  • Single & Three Phase Configurations
  • Computer Control for Automated Systems Remote programming and collection of measurement data
  • Separate Single Phase Outputs of up to 200A and 270V (L-N) Simulation of power levels up to 54 KW
  • Multiple Chassis Configurations for Two & Three Phase Systems Power level simulation up to 162 KW for three phase operation
  • Independent Full Capability Measurement System Monitors load parameters without additional instrumentation
  • Simulate True Power
  • Great for Testing Watt-Hour Meters

The MC100 Series is well-suited for calibration and maintenance of pressure instrumentation. Various pressure instruments such as pressure sensors, industrial transmitters, and pressure switches, as well as sphygmomanometers and other medical devices face severe price competition and demands for improved accuracy.

  • On-Off power switch
  • 30 A Circuit Breaker
  • Inlet - NEMA L5-30
  • Outlets – NEMA L5-30R
Test Tap:
  • 3ft.
  • (2) fork terminals (current)
  • (1) fork terminals (ground)
  • (2) Shielded Banana (voltage)

  • On-Off power switch
  • 20 A Circuit Breaker
  • Outlets – (2) Universal
Test Tap:
  • 3ft.
  • (2) fork terminals (current)
  • (1) fork terminals (ground)
  • (2) Shielded Banana (voltage)

  • Two 120/240 V Outlets
  • Circuitry rated for 20 A
  • 8’ Flexible Power Cord
  • Shrouded Safety Banana Jacks
  • Stable footprint with non-slip feet

  • On-Off power switch
  • 30 A Circuit Breaker
  • Inlet - NEMA L6-30
  • Outlets – NEMA L6-30R
Test Tap:
  • 3ft.
  • (2) fork terminals (current)
  • (1) fork terminals (ground)
  • (2) Shielded Banana (voltage)

AC Programmable Power Sources

Elgar and California Instruments AC Power Sources, Modular systems and Compliance Test systems.

Model

Voltage Current Power Overview
Asterion AC 1U 200V - 400V 1A - 15A 500VA - 18000VA High Performance AC power sources
RP Series 150V - 300V 14A - 28A 800VA - 2000VA General purpose AC power sources
Compact iX Series 150V - 300V 10A - 40A 750VA - 2250VA AC/DC power source with a high performance 
power analyzer
Continuous Wave (CW) 135V - 270V 3A - 19A 800VA - 2500VA Cost-effective Low Profile AC Source
iX and i Series II 150V - 300V 0A - 120A 3000VA - 15000VA AC/DC power source with a high performance 
power analyzer
Ls/Lx Series 152V - 312V 0A - 50A 3kVA - 18kVA Three phase and Single phase AC power source
CSW Series 156V - 312V 8A - 288A 5.5 kVA - 33.3 kVA High Performance Programmable AC and 
DC Power Source
MX Series 150V - 600V 0A - 160A 15kVA - 135kVA high levels of AC/DC power in a compact floor 
standing cabinet
RS Series 150V - 400V 0A - 1500A 90kVA - 1MVA High power AC and DC Power Source
BPS Series 150V - 400V 0A - 400A 30kVA - 180kVA High Power Programmable AC Source for frequency conversion and product test.
Current Sources
FX Series 0 - 270V 20.1 - 200A, 2.01 - 20A, 0.02 - 2A 4.5kVA - 13.5kVA Programmable High current AC Current and 
Voltage Source
CS Series 0-270V 44.44A - 177.77A 3kVA - 18kVA Programmable high power AC current source
Compliance Test System
CTS Series 3.2 150 - 300 V 0 - 37 A 1250 - 15000VA IEC Compliance Test Systems: 1250-15000VA Programmable AC & DC Immunity Compliance Testing
MX CTS 150 – 300 V 0 – 62.5 A / Phase 30 – 90kVA Harmonics and Flicker testing of high power AC products
Uninterruptible Power Supply
Global UPS (GUPS) 115 / 230 VAC 21ARMS 1920W Ruggedized Uninterruptible Power Supply

DC Programmable Power Supplies

Sorensen DC Rack-Mounted, Bench-Top and Modular programmable power supplies

Model Voltage Current Power Overview
DLM 600 5V - 300V 2A - 75A 375W - 600W 1/2 Rack Programmable DC Power Supplies
XG 850 6V - 600V 1A - 110A 670W - 850W 1/2 Rack Programmable DC Power Supplies
XG 1500 6V - 600V 2A - 187A 1500W - 1560W 1500 Watt, 1U Programmable DC Power Supplies
XG 1700 6V - 600V 2A - 220A 1330W - 1710W 1700 Watt, 1U Programmable DC Power Supplies
XFR Series 6V - 600V 2A - 300A 1.2kW - 2.8kW Programmable Analog DC Power Supplies
DCS Series 8V - 600V 1A - 350A 1kW - 3kW DC Programmable Switching Supplies
DLM Series 5V - 600V 5A - 450A 3kW - 4kW Programmable DC Power Supplies
SG Series 10V - 800V 6A - 6000A 4kW - 150kW High Power Modular DC Power Supplies
SFA Series 60V - 160V 31A - 500A 5kW - 30kW High Slew Rate Current Source
ASD Series 40V–60V 167A–8000A 10kW–320kW Programmable Precision High Power DC Power Supply