Casella CEL CEL-450 - Manual (Page 66)

Remove the batteries when the instrument is to be out of
service for some time. A built in lithium battery will maintain
stored data and setup information while the instrument is
switched off.
External DC Via 2.1 mm Power Connector: 9 to 14 VDC
at typically 150 mA with 1000 mA inrush current.
AC Output:
Approximately 0.5 VRMS via “AC Line Out” jack socket.
Full scale output corresponds to either 94 or 114 dB, with 22 k
W
minimum load impedance.
This output is suitable for DAT recorders, tape recorders, PC wav
file recording and headphone applications.
AC Input:
10 VRMS maximum via “AC Line In” jack socket or via a
CEL-516 Dummy Microphone. Maximum source impedance is
100 k
W.
This input is suitable for inserting direct-line signals from DAT or
tape recorders for analysis.
Optional DC Output:
0 to 2 VDC corresponds with 0 to 140 dB, with 2 k W output
impedance.
Internal Clock:
Date and time accuracy better than 2 seconds per day.
Electromagnetic Compatibility:
The instrumentation is designed and tested to comply with the
following EMC and ESD Standards.
IEC 61000-4-2 Testing and Measuring Techniques - Electrostatic
Discharge Immunity Tests,
IEC 61000-4-3 Electromagnetic compatibility (EMC) - Radiated
Electromagnetic Field Tests.
IEC 61000-4-6 Electromagnetic compatibility (EMC) - Immunity to
Conducted Disturbances induced by Radio Frequency Fields.
Tested at 10 V/m or greater.
Page 66 - CEL-450/490 Operators Handbook
Specification