Lighthouse S3100/S5100/Boulder Counter Operating Manual
3-8 248083389-1 Rev
Direct Mount ISO Probe & ISP Filter Cap
The SOLAIR Boulder Counter comes with a direct mount isokinetic
probe and an isokinetic cap with a 1.0 CFM purge filter. The
components require installation onto the particle counter before
operating the instrument.
1. Remove the black cap from the sensor inlet fitting. Confirm that the
O-ring on the fitting is intact. See Figure 3-7.
Figure 3-7 Sensor Fitting & O-ring
2. Thread the Seal Nut onto the ISO Probe until it stops, as shown in
Figure 3-8.
Figure 3-8 Seal Nut & ISO Probe
Seal Nut