Lighthouse RLPC 0.1mm, Руководство по эксплуатации, Страница: 48 / 60

Lighthouse REMOTE Liquid Particle Counter (4-20mA output) Operating Manual
5-2 248083296-1 Rev 3
commands are received (all DIP switches = 0) or if an invalid
command is received, the instrument will recall its last stored
parameters (or default settings) and continue to use them.
• If DIP Switches = 0000 0001 ==> Use last stored parameters
With the DIP switches set with this value, the instrument will start
up immediately using the last stored parameters.
Startup Example:
Lighthouse Remote Instrument (4-20mA):
- reading dip switch:
Sample Time = 60 secs
Range1= 10000.
Range2= 1000.
Alarm Threshold = 750 counts
Suppress Alarms = 2
Service High = 3500 mV
Service Low = 125 mV
• DIP Switches = Anything other than (0000 0000 or 0000 0001)
The DIP switch settings will be read and interpreted. If the
combination is valid, those parameters will be chosen. Otherwise,
sample time of 300 seconds and 100,000 counts will be used.
COUNT
The instrument uses setup parameters to run, collect data, and output
count and alarm data. 0 counts will be represented by 4mA, and counts
equal to upper range will equal 20mA. The current output will have a
direct linear relationship to the range.
• Iout= 16mA(counts/ range) + 4mA
• Vout= Iout(R-load)
• If a Service Alert occurs, both channels are set to 2mA.
TIMER
Keeps track of time relative to sample seconds, and outputs sample data
every SampleSecs.