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Teledyne API Ultrafine Particle Monitor - Model 651 Instrument Operation
07506C DCN6727 47
Status Description
Nozzle Pressure
The pressure difference upstream and downstream
of the optics assembly. Should be 100% - a 10%
drop in nozzle pressure indicates a nozzle clog.
Separator Temp
Temperature of the Separator in degrees Celsius. A
normal Separator temperature is 7°C.
Cabinet Temp
Temperature inside the Model 651 cabinet.
Laser Current
The operating current of the laser in mA.
Photodetector
Indicates photodetector voltage in mV.
Analog Input
Displays the voltage of the analog input.
Flow Constant
Represented in particles/cm
3
. Compensates for any
variations in orifice diameter.
SETUP Screens
HOME | SETUP
Pressing the SETUP button on the home screen takes you to the
SETUP screen where you can set the following operating
parameters:
Parameter Description
SAMPLE TIME
Select a sample time for updating the display
graph. Choices are 1 sec, 2 sec, 3 sec, 4 sec, 5
sec, 6 sec, 10 sec, 12 sec, 15 sec, 20 sec, 30
sec, 60 sec.
VACUUM
Turn the vacuum valve on/off.
INLET FLOW
Set the inlet flow. Choices are 3 L/min (total flow),
0.12 L/min (sample flow), and
0.6 L/min (transport flow).
SET TIME
Set the time for the internal, real-time clock used
for data logging purposes.
MORE
Takes you to the NETWORK SETUP screen.
NETWORK SET
UP
Set up network connections including
NETWORK, ADDRESS, MASK, and GATEWAY.
MORE
Takes you to the ADDITIONAL SETUP screen.
ADDITIONAL
SETUP
Specify the ANALOG OUTPUT and LOGGING
time.
ANALOG
OUTPUT
Set an analog voltage range for the output.
LOGGING
Choose intervals for logging data.