13
When the battery is nearly discharged, the unit closes all open files, stops the software, and will shut off automatically.
2.4.2 To Charge the Battery
•
Connect the provided external AC adapter to the power input of the unit.
•
Connect the AC adapter to a electrical outlet.
•
The green LED will light when the battery is charging and will turn off when charging is complete.
•
Charging can be done with the unit turned on or off.
Note:
Battery replacement and service should be performed by B&K Precision. Contact us for details.
2.5 Calibration
The recorder inputs for the voltage and thermocouple offsets can be calibrated. This will remove any offset present on
different channels.
Figure 2.5
Offset Calibration Screen
1. Let the unit warm up for 20 minutes at ambient temperature 68-77F (20-25C).
2. Enter the recorder main page and then press the “Setup” key.
3. Select the “Additional Option” menu.
4. Select the “Electric Calibration” menu.
5. Press the “Calibration offset” to start calibration. This takes approximately 5 minutes.
6. Power cycle the unit.
2.5.1 Factory Default Calibration
The default factory calibration can be restored to correct any possible mistake in the calibration coefficients. This restores
calibration values configured at the factory. This is performed as follows:
