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Zaxis Inc. LLC
801.264.1000
2442 South 2570 West
West Valley City, UT 84119
Programs — Data (such as test pressure, test time, and reject levels) entered by the
user and stored in the Isaac’s battery-backed RAM. A program is setup in Isaacs Pro-
gram screen. The Isaac has 100 test programs.
Program Screen — This screen is used to enter all setpoints and limits concerning the
pressure decay test. The program screen has a header that tells you the program num-
ber for which you are currently setting parameters.
R
Ramp — To slowly increase pressure by routing test pressure through the ow control
valve located on back of Isaac. Various ramp rates can be established by adjusting
Isaac’s built-in ow control.
Reject Level — The amount of pressure drop allowed in a pressure decay test. This
value is set in the program setup screen. The reject level, together with test time, de-
termines the amount of acceptable leak rate.
S
Set point — A programmable threshold value (usually a minimum and maximum value)
used to establish a testing tolerance.
Settle — A time interval following ll phase that allows product to stabilize before the
Isaac starts the measurement phase. Longer settle times are often required in products
constructed of exible materials.
Standard Cubic Centimeters per Minute (SCCM) — This is a ow measurement
standardized to 68 degrees Fahrenheit and 14.7 psi (average sea level).
Stored Programs — A set of instructions (parameters) that can be set by the cus-
tomer to run a variety of tests. Users can alter stored programs to meet specic prod-
uct testing needs. Programs are congured in Isaac’s Program screen and are kept in
NVRAM (Non-volatile).
Supply Air — Compressed air or gas connected to the rear tting labeled Supply.
Isaac’s standard tting is a 1/8” NPT (Similar to R1/8 BSPT British Standard Pipe Taper)
female thread bulkhead. Air must be clean, dry, and free of oil.
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