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Diagnostic Accessories
The EMS water trap assembly
(Fig. 1) is essencial for road
testing, Dyno use, Diesel testing,
motor cycle testing, and two
cycle fuel testing. This accessory
will prolong the analyzer life by
pulling more moisture out of the
sample gas.
The Y-Valve assembly (Fig. 2)
was designed for pre-catalytic
converter testing. With the real
benefit being able to hook up
both pre & post cat sample hose
& probes. And swich between
both readings at the analyzer,
which saves you time. Also
check back pressure on the pre-
cat side at the analyzer with our
inline pressure gauge (Fig.3)
EMS also offers a pop nut insert tool kit (Fig.4) for the pre-cat probe w/ a 1/4”-20 threaded
end. The kit includes the pop nut insert tool, 1/4-20 mandrel, box of 40 nuts, 50 pc’s 1/4-
20x3/8” stainless steel SHCS, 25/64” drill bit The EMS EVAP probe,( small engine) (Fig. 5) is
3/16” O.D. and very flexable to help find radiator or exhaust leaks in tight spaces.
Figure 1 Figure 3Figure 2
Figure 4 Figure 5
Pre-Cat
Probe
Water trap
Assembly
Post-Cat
Probe
Y-Valve
Assembly
EVAP
Probe
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