Lighthouse ApexP3, Operating Manual

Page: 118 / 130

Lighthouse ApexPortable Operating Manual
A-16 248083440-1 Rev 5
Note:
Only Particle data
types have numbers in
their strings.
Particle data items are typed specially. They contain numbers,
sometimes a space and sometimes a period used as a decimal point.
These entries are used to identify particle channel sizes and are always
expressed in microns. These types represent raw counts only.
Data Units Registers
The 33xxx register series identifies the units used by data items in the
30xxx series. The Units Registers are paralleled by the Data Registers.
For example, Data Register 30010’s Units Register is 33010.
Note:
Not all data types
have units.
Units are stored as 4 character ASCII strings across 2 registers. If the
Units string contains less than 4 characters, or no characters at all, the
AIRV Air Velocity
DPRS Differential Pressure
ESD Electrostatic Discharge
FLOW Flow Rate
LASV LASER Voltage
VOLT Voltage
PRES Pressure
CURR Current
LASV LASER Current
LASP LASER Power
Table A-15 Data Type Registers
String Description
Table A-16 Examples of Particle Data Items
String Description
0.3 Particle type of size 0.3 micron
1.0 Particle type of size 1.0 micron
20.0 Particle type of size 20.0 micron
.015 Particle type of size 0.015 micron or 15 nanometer