4 Turning on the Power
The device can be operated with four AA batteries (alkaline batteries, Ni-MH rechargeable batteries), or, as an external power supply, AC Adapter NE-21P, Battery Pack BP-21A, or a USB power supply. The operating voltage is 5.7 V to 15 V (rated voltage 12 V).
WARNING
- If you notice any abnormalities such as excessive heat, smoke, or a burning odor while using the device, immediately remove the batteries, unplug the AC adapter plug from the outlet, and contact your dealer.
- If you do not intend to use the device for a long time, remove the batteries. Failing to do so may result in battery leakage.
Note
- Make sure to set the date and time before measuring.
- When the batteries are installed and the AC adapter is connected to the device, power is supplied from the AC adapter.
(The AC adapter takes priority in terms of power supplies. However, when power is supplied from the USB port, the USB takes the top priority.)
When power is no longer supplied from the AC adapter due to a power outage, etc., the device automatically switches to being powered by the batteries. - When operating the device with just an external power supply, if the device is turned off when the external power supply turns off, the auto-file-closing and auto-shutdown operations will not be performed, and so we recommend installing new batteries in the main unit. However, make sure to set the power-on mode switch to the A side (“Turning on/off the power”).
- When using the specified AC adapter, the instrument can withstand momentary power failures of the commercial power supply for up to approximately 50 ms.
