
Lighthouse SOLAIR 3350, 5350 Gen E Operating Manual
B-10
248083387-1 Rev 10
The bits within the Data Status Byte are flagged to indicate particular
conditions of the currently indexed data record.
If multiple states occur, the bits are added together. For example, a
Flow Alert and a Particle Overflow would return a value of 6 in register
30008 (bits 1 and 2 are set TRUE).
Bits 7 to 31 are currently unused.
Valid Data in Channels (30074)
Register 30074 represents the flag bits corresponding to valid data
present in the particle register range.
Alarm Flags in Channels (30076)
Register 30076 represents the flag bits corresponding to particle
channels that have exceeded the threshold [Threshold High Registers
(45xxx series)] based on alarm mode
Table B-9 Data Status Byte
Bit
Description
0
Laser Alert Status
0 = Laser is OK 1 = Laser Alert
1
Flow Alert Status
0 = Flow Rate is OK 1 = Flow Rate Alert
2
Particle Overflow Status
0 = No overflow 1 = Overflow occurred
3
Instrument Service Status
0 = Working correctly 1 = Malfunction detected.
4
Threshold High Status
0 = Threshold not exceeded 1 = Threshold exceeded
5
Threshold Low Status
0 = Threshold not exceeded 1 = Threshold exceeded
6
Instrument Sampler Status
0 = Nominal Operation 1 = Sampler Error
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