Lighthouse ApexP3, Руководство по эксплуатации

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Lighthouse ApexPortable Operating Manual
A-10 248083440-1 Rev 5
example:
<High Bytes><Low Bytes> = <4 Byte Data Item>
For particle channels, the threshold value is a 32-bit unsigned integer.
If the data value exceeds the threshold value and the alarm is enabled
for that channel, the threshold flag in the Data Status register (30007-
30008, bit 4) is set.
Note:
Table A-10 shows
the registers for an 8
channel particle counter.
Counters with fewer
channels do not use the
extra registers. The
smallest particle channel
starts at the xxx09 position.
The Data Status flag is set if any of the channels have a threshold
exceeded state as true.
The threshold registers (45xxx series) run in parallel with the data
registers (30xxx series). For example, data register 30010’s
corresponding threshold register would be 45010. Data register 30016’s
threshold register would be 45016.
Setting the Alarm Threshold Value
Note:
Thresholds are
independent of each other,
so the value set for one
channel does not affect
another.
The Alarm Threshold Value is set in the low register of the channels.
Each channel has independent threshold value registers. Setting a value
for channel 1 as 100 will not affect channel 2 setting of, say, 500.
Table A-10 Alarm Threshold Registers
Register Data Type Description
45009 unsigned int Threshold for Particle Channel 1 [high]
(smallest particle size starts here)
45010 unsigned int Threshold for Particle Channel 1 [low]
45011 unsigned int Threshold for Particle Channel 2 [high]
45012 unsigned int Threshold for Particle Channel 2 [low]
45013 unsigned int Threshold for Particle Channel 3 [high]
45014 unsigned int Threshold for Particle Channel 3 [low]
45015 unsigned int Threshold for Particle Channel 4 [high]
45016 unsigned int Threshold for Particle Channel 4 [low]
Table A-11 Alarm Threshold Registers set to 1000
Registers
Particle
Channel
Threshold
Value
45009 - 45010 1 1000
45011 - 45012 2 1000