Accessories
15
External Filters
The external filter is a PTFE (Teflon
®
) membrane with a 0.2 micron pore
that reduces the amount of liquid and dust that can contaminate the
sensor. Using the external filter prolongs sensor and pump life.
Change the external filter whenever it becomes discolored, clogged
with particles, or draws in liquid.
NOTE:
Do not use the external filter when calibrating reactive gases.
Instead, use the High Pump Speed setting and a short Teflon
®
tube.
®
®
Although this shortens battery life, it provides a faster response.
Remote Sampling Probe
When searching in hard-to-reach areas, use
the standard remote sampling probe (P/N
008-3015-200) with a telescoping handle
and 6 feet of Teflon tubing. For longer
distances, attach a length of Teflon tubing.
The monitor is capable of drawing samples
from over 100 feet.
Accessories
Optional Dilution Fitting
When gas samples have less than 10% oxygen, the dilution fitting (P/N
008-3025/3026) will increase the oxygen concentration. The dilution
fitting can also measure combustible, VOC or toxic gases when the
concentration exceeds the upper limit of the sensor range. In Program
Mode, set the dilution ratio to obtain the correct gas reading when the
dilution fitting is used. The dilution fitting attaches directly to the meter
and the sample tubing attaches to the dilution fitting.
Refer to Technical
Note-167 Proper Use of Dilution Fittings on Pumped Monitors for more
information.
The monitor and the dilution air inlet must be located in a clean
atmosphere outside the confined space. Use either a remote sampling
probe or Tygon tube test gas samples.
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