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Power Meter Calibration Software [free software]

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This software automatically calibrates a power meter (WT series) using YOKOGAWA's AC Power Calibrator LS3300 and 2560A Precision DC Calibrator. Load a CSV format file describing calibration points in advance to control the LS3300 or 2560A so that reference signals are output according to the calibration points. For the following instruments that can be controlled with this software, set the range of the calibration target instrument remotely for each calibration point to read the measured values automatically. You can save a calibration result in a CSV format file and create a test certificate.

*: For a calibration targets other than WT100, WT200, WT300, and WT300E series, you cannot automatically set the measurement conditions and load the measured values.
**: CSV format file (comma-separated)

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1．Automation of calibration

Automating calibration allows engineers to focus their energy on more time-sensitive tasks.
Example: WT310E Calibration point AC 52 points

Automation of calibration

 

2. Pass/fail judging function

This function judges pass/fail of a calibration value according to a set threshold and displays one of the three judgement results: Pass (Blank), Warning, Fail.

  • Blank (Pass): The ratio of error to tolerance has not exceeded the threshold.
  • Warning: The ratio of error to tolerance has exceeded the threshold.
  • Fail: The ratio of error to tolerance is 100% or more.

Pass/fail judging function

 

3. Calibration definition file

Sample files are provided for each WT series model.
Calibration points can be created arbitrarily as a calibration definition file.

 

4. Function to calibrate desired points

You can also choose certain desired points from among the created calibration points.

Function to calibrate desired points

 

5. Wizard function

For calibration patterns and instrument connection methods, operation instructions and wiring diagrams are shown on the screen.

Wizard function

 

6. Saving calibration results in files

You can save a calibration result in a CSV format file and create and print a test certificate.
(This software comes with a sample of Excel macros that create a test certificate.)

Saving calibration results in files

 

7. Function to restore setting values

Calibration automatically changes the measurement conditions including the measurement range.
To revert to the original settings, you can save the settings before calibration and reset them after calibration.

Models subject to calibration

１．Instruments That Can Be Controlled with This Software

Series Single-phase/three-phase Model name
WT300E Single-phase model
Three-phase model		 WT310E, WT310EH
WT332E, WT333E
WT300 Single-phase model
Three-phase model		 WT310, WT310HC
WT332, WT333
WT200 Single-phase model
Three-phase model		 WT210 (760401)*2
WT230 (760502, 760503)*2
WT200 Single-phase model WT200 (253421)*2
WT100 Single-phase model WT110 (253401) *1,*2, WT110E (253451)*1,*2
WT130 Three-phase model WT130 (253502, 253503)
*1: Models with the firmware version 1.11 or later
*2: Can be controlled in the mode compatible with the IEEE488.2 1987 standard (488.2 mode)

2．Instruments That Cannot Be Controlled with This Software

- YOKOGAWA power meters other than the above
- Non-YOKOGAWA power meters
You need to manually set the measurement conditions and read the measured values for the calibration target instrument.

Instrument Configuration



The instrument configuration varies depending on the calibration details.

 

●：supported
  LS3300 2560A
AC Voltage ● N/A
Current

＊1
Hi Current		 50A ● N/A
100A*1 ● 2 units N/A
150A*1 ● 3 units N/A
Power 1P2W ● N/A
1P3W ● 2 units N/A
3P3W ● 2 units N/A
3P4W ● 3 units N/A
DC Voltage ● N/A
Current ● N/A
Power ● 2 units N/A

Specifications

0.0 to 1200.0 V (LS3300)

Item Description
Calibration function Outputs single-phase/three-phase power by specifying the voltage/ current level and phase.
DC Voltage Range Automatically selected according to the level (Refer to the separate table)
Level -1200.0 to 1200.0 V (2561A)
Current Range Automatically selected according to the level (Refer to the separate table)
level -12.0 to 36.0 A (2561A)
Power Range (2560A) Automatically selected according to the level Voltage level -1200.0to 1200.0 V
Current level -12.0 to 36.0 A (2561A)
AC Voltage Range Automatically selected according to the level (Refer to the separate table)
Level 0.0 to 1200.0 V(LS3300)
Frequency 40.0 to 1200.0 Hz (LS3300)
Current Range Automatically selected according to the level (Refer to the separate table)
Level 0.0 to 180.0 A (LS3300)
Frequency 40.0 to 1200.0 Hz (LS3300)
EXT 0.0 to 6.0000 V(LS3300)
Power Range (LS3300) Automatically selected according to the level
Voltage level 0.0 to 1200.0 V (LS3300)
Current level 0.0 to 60.0 A (LS3300) Phase -180.000 to +359.999 °
Power factor Delay/advance -1.0 to 1.0
Frequency 40.0 to 1200.0 Hz (LS3300)
Reference instrument
DC Voltage/current 2560A 1 unit
Power 2560A 2 units
AC Voltage/current LS3300 1 unit
2 units (up to 120 A)
3 units (up to 180 A)
Power LS3300 1 unit (single-phase)
2 units (up to single-phase 120 A) 3 units (up to single-phase 180 A)
2 units (single-phase three-wire system or three-phase three-wire system)
3 units (three-phase four-wire system)
Calibration Target Instruments WT310E, WT310EH, WT332E, WT333E, WT310, WT310HC, WT332, WT333,
760401 (WT210), 760502 (WT230), 760503 (WT230), 253421 (WT200),
253401(WT110), 25345 (WT110E), 253502 (WT130),253503 (WT130)
Remote communication interface/protocol
Reference instrument GPIB, USB/USB-TMC, ETHERNET/VXI-11
Calibration target instrument GPIB, USB/USB-TMC, ETHERNET/VXI-11, RS-232C
Other functions
Calibration target instrument setup
save/restore		 Saves and restores calibration target settings
Calibration point script management Lists, overviews, and selects calibration points
Calibration result management Lists and overview of the calibration results
Directory creation Creates a directory each for calibration target instrument setup,
calibration point script management, and calibration result management
Multiple launch prevention Prevents multiple calibration software programs from starting
Operating environment
OS Windows 8.1, Windows 10, Windows 11
Language English, Japanese
.NET Framework 4.5.2 (included with this software)
YKMUSB draiver Windows8.1, Windows10(Device Guard disabled): 1.0.4.2
Windows10(Device Guard enabled), Windows11: 2.0.0.0 and later
TMCTL library 7.0.0.0
File format
Calibration definition file CSV format file (comma-separated)
Calibration result file CSV format file (comma-separated)
Version Added Function Date
1.02 Changed/added following specification.
  • Added column of elements to proof screen
  • Changed that confirmation dialog is displayed when saving the calibration result as a character string that cannot be used in the file name on the save screen
  • Added an item to switch display/hide of the file name confirmation dialog on the option screen
Fixed the following bugs
  • Fixed a bug that the column width of each table on the procedure selection screen and calibration screen was not resumed.
  • Corrected the problem that the total power is displayed as the generated value regardless of the calibrated element when multi-phase output is performed on the calibration screen.
  • Fixed the problem that the power meter calibration software hangs up when entering characters that cannot be used for file names in the serial number on the connection screen.
 Sep 5, 2022
1.01.001 Added Calibration Definition File samples that can only perform AC calibration for the power meters, WT310, WT310HC, WT310E, WT310EH.
  • WT310_AC_Sample
  • WT310HC_AC_Sample
  • WT310E_AC_Sample
  • WT310EH_AC_Sample
 Apr 1, 2019
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