The Anritsu Site Master S331E/S361E models are capable of approximately four hours and the S332E/S362E models are capable of approximately three hours of continuous operation from a fully charged, field-replaceable battery (refer to Battery Replacement).
The Site Master can also be operated from a 12 VDC source (which will simultaneously charge the battery). This can be achieved with either the Anritsu AC‑DC Adapter or the Automotive Power Adapter. Both items are included as standard accessories with the Site Master. Refer to the instrument Technical Data Sheet.
Caution
When using the Automotive Power Adapter, always verify that the supply is rated for a minimum of 60 Watts @ 12 VDC, and that the socket is clear of any dirt or debris. If the adapter plug becomes hot to the touch during operation, discontinue use immediately.
The Site Master takes approximately 60 seconds to complete power-up and to load the application software. At the completion of this process, the instrument is ready for use.
Note
Keep the fan inlet and exhaust ports clear of obstructions at all times for proper ventilation and cooling of the instrument.