Download LOG_aLevel - GENERAL ACOUSTICS Echosounding, Sub

LOG_aLevel® User Manual
2.3.3
Power supply
The power supply module provides all internal voltages to the system. Furthermore, shut
down and battery guard function are implemented. The power supply module gets the
input voltage from the AC power supply (standard) or battery (option).
AC autoranging power supply
The AC autoranging power supply allows for an automatic adjusting to the input voltage
and a worldwide usage. The operational range of the autoranging unit supplied is 100 –
240 V. This module can be enhanced by an uninterrupted power supply (UPS module).
2.3.4
Reference distance unit
The reference distance unit provides for a direct measurement of ultrasound velocity on
air. It consists of a highly accurate REF sensor, a target and a plate for fixing to the
supporting arm. The reference sensor is calibrated with high accuracy. Read Section 3.1
carefully for proper installation of the
IMPORTANT: Accidental disalignment reduces the accuracy of the system. HANDLE THE
SENSOR WITH CARE AVOIDING ANY SCRATCHES
7