Hioki 3144-20, Руководство пользователя

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Chapter 5 Specifications
94
Measuring Functions
Detection method
Effective value conversion
Detection accuracy
500 Hz to below 1 MHz: ±1.5 dBV
1 MHz to 30 MHz: ±2.0 dBV
(BNC input terminated at 50
Ω
)
1. Monitoring function
The measuring voltage level of each frequency range is dis-
played in levels on an LCD (equivalent to 2.5 dBV/SEG).
2. Logging function
Measurement data and time are saved in internal memory at
each preset recording interval.
Internal memory
8 blocks
(1 block: Up to 8,000 data items)
Amount of recorded
data
Up to 64,000 data items
(8 blocks × 8,000 data)
Number of measure-
ments
1 to 8 measurements (depending on num-
ber of blocks used in each measurement)
Recording mode
• Automatic Stopping Mode
When internal memory becomes full,
the measurement is completed (up to
64,000 data items).
• Overwrite Recording Mode (CONT)
When internal memory becomes full,
the measurement continues by over-
writing older data. (Guaranteed mini-
mum number of data items: 56,000)
Memory backup
Provided (By backup battery when power
is turned off)
Life of backup battery: About 5 years
(Reference value)
Recording interval
1/ 2/ 5/ 10/ 20/ 30 seconds
1/ 2/ 5/ 10/ 20/ 30/ 60 minutes
Data deletion All data is deleted.
Recording time See the attached table (page 95)