Calibration Adjust Procedure - Fluke 1746 Calibration Manual
Power quality logger
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Also See for 1746:
- User manual (68 pages) ,
- Manual supplement (6 pages) ,
- Quick start manual (6 pages)
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1742/1746/1738
Calibration Manual
8.
After the values are checked for AUX 1, move the 4-pin connectors leads to AUX 2; Pin 3 to the 8846A
INPUT HI; pin 4 connected to the 8846A INPUT LO.
9.
Apply the voltages in Table 18. Verify that the AUX 2 readings are between the limits.
Calibrator Out DC Volts Vdc
300.000
600.000
990.000
10. When finished, set the calibrator to Standby.
Calibration Adjust Procedure
This procedure adjusts the Logger accuracy at ambient temperature 23 °C ±2 K (intrinsic error).
The required equipment and cables for calibrating the Product are listed in Table 4. See USB
Communication for instructions on how to set up the PC.
To prevent electrical shock, personal injury, or fire:
•
Do not perform the calibration procedures or calibration verification tests
described in this manual unless you are qualified to do so.
•
Repairs or service should be performed only by qualified personnel.
The spreadsheet contains an automated adjust in the Calibration & Verification worksheet. When used, it
provides connection instructions, can control the calibrator to apply the required voltage, and then will
calculate and store the new calibration factors.
When this worksheet is active, the selection box should pop up. If not, click the Start button on the upper
right of the worksheet.
In the Setup tab, only the calibrator control needs to be set (the Voltage divider is not used in the 174x
Adjust).
To set the calibrator control:
1.
Select the Calibration tab of the 17xx/354x Calibration & Verification pop-up. Choose Voltage, AUX, or Current
calibration and check the boxes to select items for adjustment.
2.
When selection is complete, click Start.
3.
Follow the instructions provided in the automated procedure.
When the 17xx/354x Calibration & Verification popup box shows again, the calibration factors have been
calculated and stored in the Logger.
30
Table 18. AUX Input Verification
Lower Limit Vdc
2.9848
5.9698
9.8503
XW Warning
Upper Limit Vdc
3.0152
6.0302
909497
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