3 calibration, Calibration – B&K Precision 1739 - Manual User Manual

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6.3 Calibration

Calibration is a procedure that ensures that the power supply will work properly,
with parameters specified within the Specifications section.

Before initiating the calibration procedure, the following conditions must be assured:
• Disconnect any loads connected to the power supply and turn it on

• Let the power supply be turned on for 1 hour with no loads connected before

you start the calibration procedure

• Calibration ambient temperature must be 25°C

• Ambient relative humidity must be less than 80%

To calibrate the power supply, complete the following steps:

1. Turn on the power supply in calibrating mode

2. Zero voltage calibration

3. Full voltage calibration

4. Low current calibration

5. Full current calibration

6. Leaving the Calibration menu

1. Turn on the power supply in calibrating mode

a) Turn off the power supply. Disconnect the power cord and all loads

connected to the power supply.

b) Turn on the power supply with Output On-Off button pressed in and keep it

pressed for at least 10 seconds.

c) The power supply will enter the calibration mode and will display:

Voltage display: C A L

Current display: U 0

You can browse the calibration menu by turning the current coarse knob. Using the
voltage coarse knob you can select one of the following calibration procedures:

U 0 Zero voltage calibration

U F Full voltage calibration