4
Control Panel Overview
Flow Meter:
If the meter indicates flow, then you know there
is flow going into (or through) the system being tested. If
flow meter indicates flow after the system is filled, this
indicates a leak. The higher the ball is in the flow meter, the
larger the leak size.
No flow indicates no leak.
Observing the flow meter behavior allows Technicians to
judge system blockage, restrictions, control effectiveness, and
system operational integrity.
Flow Control Valve:
Easy to read ¼ turn valve allows
total control of the volume of Diagnostic Smoke® vapor
exiting the leak. First, fill system with smoke at full
flow. Then reduce the smoke volume by adjusting the
Flow Control Valve so that the leak is even easier to
see.
Sometimes less smoke exiting a small leak is easier
to see.
Flow Control Valve does not affect delivery pressure;
it only affects the volume of flow.
SMOKE Light (Red):
Turns ON
when you press the START
button, indicating smoke
production.
POWER Light (Green):
Turns
ON when you connect Tester
to 12-Volt DC power.
Blinks if the battery power
source is insufficient.
START Button:
Press for smoke production.
Note:
Is on 5-minute timer.
Pressure Gauge:
(-30 to +30 IWC)
used to verify
leak(s) in a system, using either
pressure-decay or vacuum-decay.
The pressure / vacuum decay
test cannot tell the
size
of the
leak(s).
Leak
size
can
be
determined using the indexed
flow meter.
Indexed on Flow Meter:
indicates
three critical EVAP leak thresholds
of
.
010"
.
020" and
.
040" for
diagnostic accuracy.
.
040" (1 mm)
.
020" (½ mm)
.
010" (¼ mm)
.
Note: Flow Control Valve must be
in full flow position for proper
measurement.
