Gas Pup
16
Instruction 55-9002
High Pressure Mode
CAUTION:
Maximum over pressure without damage is
150 psig.
The high-pressure mode measures pressure
in the range of 0 to 99 psig. Enter this mode
by first selecting the pressure mode during
startup as previously described. The instru-
ment will default to its high-pressure mode
as signified by the letter “P” appearing in the
RANGE window. The READING window
will display the pressure applied to the
instrument’s pressure port. Note that an out-
of-range pressure condition is signaled by two
dashes “–.–” appearing in the READING
window.
Low Pressure Mode
The low-pressure mode measures pressure in
the range of 0 to 9.9 psig, and also negative
pressures down to –9.9 psig. Enter this mode
by first placing the instrument into it high-
pressure mode as previously described. Then
press the
key to switch to the low-pressure
mode as indicated by the letter “d” appearing
in the RANGE window. The READING window will display the pressure
applied to the instrument’s pressure port. Positive pressure readings are
indicated by a
steady
display, while negative pressures are indicated by a
flashing
display. Note that an out-of-range pressure condition is signaled
by two dashes “–.–” appearing in the READING window.
Delta Pressure Mode
The delta pressure mode is used to measure the delta (difference) in
pressure, and is useful when pressure proving new or repaired piping
that has been pressurized with compressed air.
Do the following to pressure prove a piping system (see Figure 14):
1. Attach the components of the optional Service Line Pressure Testing
Kit (P/N 55-0072) between the piping being tested and the
instrument’s pressure port.
2. Set up the Pup to measure high pressure as previously described
under the heading
High Pressure Mode
.
Operation
Typical High-Pressure
Reading
Typic Low-Pressure
Reading
Figure 13. High & Low
Pressure Modes
Содержание Gas Pup
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