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1.4 Storage Media CF Card
The Solid Compact Flash Memory Card (CF card) 2GB capacity is a free standard storage media used for
this instrument. Its compact size, anti-dust and anti-vibration features increase its reliability. To read
measured data on CF Card, add a CF reader on USB port of PC. If the recorder is used with 6-channel
inputs, an easy chart to show the maximum days CF can store the data.
CF card
Log speed
1 second
10 seconds
120 seconds
Each record of data uses 2 bytes of CF card memory.. If the Log Speed ( the recording speed of measured
data ) is set to the fastest speed at 1 second per data, then for a single channel, 2GB CF card will last
approximately 11850 days [= 2048MB / ( 2 bytes x 24 hours x 60 minutes x 60 seconds ).
The following formula is to calculate how many days the CF card could do saving before it is full.
?
The
days = The capacity of CF Card / ( 2 bytes / the Log Speed x the working hours per day x 3600
seconds )
To avoid loosing recorded data while storing on PC, it is necessary to insert CF card back again into the
recorder soon after loading recorded data onto PC.
1.5 Data Security
The recorded data is stored in the manufacturer's special binary format. It is not possible to manipulate
or modify the recorded data. This feature fully guarantees the security of the data.
1.6 Infrared Detector ( IR Detector )
The use of Passive Infrared technology on the recorder is an innovative idea to prolong the lifetime of the
LCD display. The detector senses the movement of body heat from a distance of approximately 2 meters.
This feature works together with the Screensaver. For example, if the IR Sensor is turned on and
Screensaver set to 10 Min, then the display will turn off 10 minutes after the user walks away from the
recorder. The Passive Infra Red detects when the user returns to the recorder and the display turns on
straight away, no need to press any key on the recorder. If the user does not prefer using this function, it
can be disabled.
2GB
1975 days
19750 days
237030 days
7
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