35-3001A-01-XX1 Sample-Draw Detector Operator’s Manual • 25
2. Slowly turn the pressure switch adjustment screw counterclockwise just until the sample-
draw detector goes into low flow alarm.
3. Turn the sensor flow control valve’s knob counterclockwise to increase the flow until the
unit is out of low flow alarm when the reset switch is pressed and released.
4. Decrease the flow very slowly by turning the sensor flow control valve’s knob clockwise
and verify that the low flow alarm is 0.6 SCFH (±0.1).
If the low flow alarm is set too high, turn the pressure switch adjustment screw slightly
clockwise. Repeat steps 3 and 4 if necessary.
5. Use the sensor flow control valve to set the flow to 1.0 SCFH.
6. Make sure the sample-draw detector’s Fail LED is off.
Removing the Particle Filter’s Tubing Stub, if Necessary
A short tubing stub comes factory installed in the particle filter. It is used for connecting the
particle filter to the inlet fitting. If you have installed the particle filter and no longer want it
installed, you will need to remove the particle filter’s tubing stub from the inlet fitting and
replace it with tubing.
Figure 6: Inlet Fitting with Tubing Stub
CAUTION:
Do not pull the tubing stub downward to remove it.
Outside of Case
Fitting Body
Front Ferrule
Back Ferrule
1/4" Tube
1/4" Tube
O-ring
Tube Nut
Inside of Case
