Compactflash Memory Card Slot - Measurement Computing USB-5200 Series User Manual

USB-5201 User's Guide
LED function when the USB-5201 is connected to an active USB port
LED Illumination
Steady green
Blinks continuously
Blinks three times
Off
Refer to the following table for the function of the USB-5201 LED when the device is connected to the external
supply and is logging data. The function of the LED varies according to the selected logging mode.
Logging mode
Logging off
Start Logging on
Power Up
Start Logging on
Button
Start Logging at
Specified Time
Any logging mode

CompactFlash memory card slot

The CompactFlash slot accepts standard memory cards. A 512 MB memory card is shipped with the device. For
extensive data logging, you can insert a higher capacity card of up to 2 GB. You must format the memory card
before logging data for the first time.
Calculating the logging time for a memory card
Use the following formula to calculate the approximate amount of logging time in seconds that one of the
supported memory card allows. The USB-5201 supports 512 MB , 1 GB, and 2 GB CompactFlash memory
cards.
where

time = total disk time in seconds

N = size of memory card in bytes
Disk

N = 1 byte for digital I/O
DIO

n = number of channels logged
Channels
Indication
The USB-5201 is connected to a computer or external USB hub.
Data is being transferred.
Upon connection, the LED should flash a few times and then remain lit (indicates a successful
installation).
Initial communication is established between the USB-5201 and the computer.
The USB-5201 is not connected to an active USB port.
LED function when the USB-5201 is logging data
LED Illumination
The LED is off.
The LED turns on when external power is
connected, then blinks each time data is captured.
The LED stays off until the data logging button is
pressed and held for approximately 1 second. At that
time, the LED turns on and blinks each time data is
captured.
The LED is off – blinks on once per second until the
specified date/time to start logging is reached. At
that time, the LED turns on – blinks off each time
data is captured.
Blinks rapidly (250 ms period) and continuously.
Indication
The USB-5201 is not logging data, and/or
the device is not powered
Blinks when logging data.
Blinks when logging data.
Blinks on once per second until specified
data/time to log data occurs. Then it turns
on and blinks each time data is captured.
The memory card is full.

The memory card was removed during

logging. Insert the memory card again
to stop the device blinking.

R = logging rate in seconds

N = 6 bytes for timestamp, if enabled
TS

N = 4 bytes for a temperature reading
Temp

N = 8 bytes if CJC sensor readings are enabled
CJC
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Functional Details