GxT Ferret 21 Smoke - Manual (Page 3)

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Controls & Indicators
Pressure Gauge
The large easy to read pressure gauge is used to determine the calibration of the CoolSmoke, and indicate
the amount of pressure that is being applied to the system under test.
Flow Meter
The CoolSmoke incorporates a highly accurate fl ow gauge. When used with a properly calibrated
CoolSmoke, the fl ow meter can be used to determine the size of the leak.
Polarity Lamp
The polarity lamp is illuminated when the CoolSmoke is properly connected to a 12 Volt battery.
Flow Lamp
The fl ow lamp is illuminated when regulated shop air is fl owing into the system being tested. The more
frequently the fl ow lamp cycles on and off the bigger the leak.
Mode Switch
The Mode Switch is located on the top deck of CoolSmoke at the front right. Press the left or right side of
the Mode Switch to select the appropriate pressure controlled mode (1 or 3 psi), or select the centre position
for the Manual Mode. The CoolSmoke has two internal pressure cut-off switches that automatically
control the maximum pressure that will be introduced to the area or component being tested. Note: Be
sure the mode siwtch is in the desired position before applying fog/pressure to any system.
Manual Mode
When the Mode Switch is placed in the center position, both internal pressure control switches are
bypassed, and the Technician has full control over the amount of pressure and/or volume that CoolSmoke
will supply. It is essential that the air pressure regulator is turned all the way down (counter-clockwise
before applying smoke in the manual mode. Failure to observe proper procedures will result in damage,
distortion and destruction of components that are not designed to be pressurized to 15PSI. The manual
mode is used to set the pressure regulator. (See calibration procedure)
1 PSI Mode
This mode has been specifi cally provided for basic testing of Evaporative Emissions System integrity.
Most manufacturers label their “EVAP” systems with a “1 psi max” warning. When you select this mode,
pressure is internally diverted through the 1 psi cut-out switch. Once 1 psi is reached within the CoolSmoke
and the system being tested, fl ow is automatically stopped. No more pressure will be applied until the
pressure indicated by the air pressure gauge drops. Note that the Flow Light will be illuminated whenever
fl ow is “enabled”.
Because of the fl ow characteristics of the CoolSmoke it may be necessary in some cases, to “tailor” the
fl ow of smoke into the system. To do this, slowly turn the Air Pressure Regulator knob counter-clockwise,
until the Flow Light comes on. Then, tune the Regulator pressure upwards, so that the system operates
close to the 1psi threshold. Once the Flow Lamp is off, you have tuned the “Regulated Pressure” into
the perfect range for the application.