B-6
Model 3786 Ultrafine Water-based Condensation Particle Counter
Command:
SDM,n
Command to set drain mode
n = mode ranging 0 to 5
Response:
OK
Response
Example:
SDM,2
Command to set drain mode to Recycling
OK
Response
SDO
S
et
D
etector
O
ffset
This command sets the detector offset control. Typically the autozero function (SZ
command) is used to automatically set this value. This command can be used to
manually set the offset or to read its current value.
Command:
SDO,xxxx
Set Detector Offset command
xxxx ranges 0 to 4095 (2048 is nominal)
Response:
OK
Example:
SDO,2200
Command
OK
Response
SDO
Command
2200
Response - echoing current offset control value of 2200
SDT
S
et
D
etector
T
hreshold
This command sets the threshold value in millivolts for particle pulse detection or
returns the value of the current setting if no parameter is supplied.
Command:
SDT,xxx
Set Detector Threshold command xxx ranges 0 to 120
Response:
OK
Example:
SDT,50
Command
OK
Response
SDT
Command
50
Response - echoing current value of 40 millivolts