Measurement Computing LGR-5320 Series - Manual (Page 13)

LGR-5320 Series User's Guide Functional Details
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When the SD STAT LED blinks to indicate an error, the four LEDs for analog channels CH0H, CHOL,
CH1H, CH1L, and the four LEDs for analog channels CH6H, CH6L, CH7H, and CH7L blink in a pattern
that represents a numeric error code. Press any button on the top of the case to acknowledge the error and
stop the LEDs from flashing.
Figure 5. LGR-5320 Series error code LEDs
For example, if you attempt to log without an SD card inserted in a LGR-5320 Series device, the CHOH
and CH7L LEDs both blink, representing binary code 0001.
All SD STAT errors and corresponding analog input LED blink codes are explained below.
LGR-5320 Series error descriptions and codes
Error Blink code
(binary )
LED pattern
CH1L CH1H CH0L CH0H
CH6H CH6L CH7H CH7L
Card not present 0001
Card not mounted 0010
Card write protected 0011
File system error 0100
FLASH write error 0101
Overrun – pacer 0110
Overrun – FIFO 0111
Overrun – events 1000
DMA error 1001
Card full 1010
File reached max size 1011
Log configuration error 1100
Log configuration not valid for device 1101
 LOG LED—On when the device is logging. Off when the device is idle.

TRIG LED—Turns on when the acquisition is triggered.

EVENT LED—Blinks when an event occurs.