B-8 Model 3786 Ultrafine Water-based Condensation Particle Counter
SGS Set Growth Tube Temperature Set point
This command sets the control temperature set point for the growth tube section of
the UWCPC. The set point temperature is provided in tenths of a degree Celsius. This
parameter is not stored and will revert to the default values on the next power-up
cycle. The factory default setting of this value is 750 (75.0 degrees C).
Command: SGS,xxx Command to set Growth Tube temperature set point
xxx = 0 to 800
Response: OK Response
Example: SGS,750 Command to set Growth Tube temperature to 75.0 deg.
OK Response
SGS Command to read back the current setting
750 Response indicates the set point value
SHS Set SHeath Flow Set Point
This command is used to set the sheath flow control set point which represents 0.3
L/min for the sheath flow control system. When issued with a parameter, this
command uses that parameter as a control point with which to control pump. The
differential orifice pressure is compared to the control point and adjustments are
made to the pump drive to maintain a match between the two. The actual control
point is compensated by the current value of the Absolute Pressure sensor to
compensate for inlet pressure.
Command: SHS,xxxx Command to set flow control set point
x = 0 to 4095
Response: OK
Example: SHS,2990 Command to set current flow control values
OK Response
SHS Command to read back the current settings
2990 Response provides set point
SIP Set Injection Prime
This command initiates a sequence to prime the instrument with injections of water.
The supplied parameter indicates the number of injections to perform. Injections are
performed at the rate of one every half-second until all the injections are completed.
Providing the SIP command with no parameter or with a parameter of 0 will halt the
injection sequence. See also the SIT command.
Command: SIP,xxx Set Injection Prime command xxx ranges 0 to 500
Response: OK
Example:
SIP,50 Command initials 50 water injections
OK Response
SIP Command cancels the injection sequence
OK Response
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