Panametrics Sentinel LCT, Руководство пользователя

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Sentinel LNG User’s Manual 63
Chapter 4. Advanced Programming
4.6 Entering the Pipe Material
1. The menu offers two options,
Material
and
Lining
. Be sure the
Material
option is highlighted, and press [ENT].
2. Two other options now appear,
Preprogrammed
and
Other
. Scroll to the desired option, and press [ENT].
3. The menu now varies with your choice in Step 2.
• For preprogrammed materials, a list of materials opens. Table 2 below covers the available preprogrammed
materials on the list. Press the [

] or [

] keys to scroll to the appropriate material. Press [ENT] to confirm the
choice.
• For other materials, the meter asks for the material
Soundspeed
. Press [ENT] to open the window. Then use the
arrow keys to enter the known soundspeed, and press [ENT].
.
4. The next required parameter is either the outside diameter
(OD)
or the circumference
(OD x PI
) 
Scroll to the
measured parameter and press [ENT]. For either measurement, enter the desired value and press [ENT].
Note: Obtain the required information by measuring either the pipe outside diameter (OD) or circumference at
the transducer installation site. The data may also be obtained from standard pipe size tables found in
Soundspeeds and Pipe Size Data (914-004) .
5. The meter also requires the Wall Thickness
(WT)
. Scroll to the
WT
option, and press [ENT]. Use the arrow keys to
enter the known thickness, and press [ENT].
Note: To obtain an accurate pipe wall thickness measurement, use an ultrasonic thickness gauge.
6. If certain materials (such as carbon or stainless steel, cast iron, PVC and CPVC) have been selected, the
Sentinel
LNG
offers the option of entering the pipe dimensions by a standardized schedule. (This option does not appear
unless one of these materials has been selected; if so, proceed to step
a
below.) Once the nominal pipe size and
schedule number are entered, the
Sentinel LNG
determines the OD and wall thickness from an internal table.
a.
Scroll to the
Schedule
option, and press
[ENT].
A list of pipe sizes opens, from 15 to 200 mm (0.5 to 8 in.).
b. Scroll to the desired pipe size, and press [ENT]. A list of schedules opens.
c. Scroll to the desired schedule, and press [ENT].
Entering the pipe parameters is complete. Press [ESC] to return to the
Pipe Material/Lining
window, or continue pressing
[ESC] to return to the data display window.
4.7 Entering Pipe Lining Data
To access the
Lining
option:
1. From the Pipe submenu, scroll to the Lining option, and press [ENT].
2. Two options appear,
Material
and
Thickness
. Be sure
Material
is highlighted, and press [ENT].
3. Two other options now appear, Preprogrammed and Other . Scroll to the desired option, and press [ENT].
4. The menu now varies with your choice in Step 3.
Table 2: Preprogrammed Pipe Materials
Category Specific Material Category Specific Material
Al - Aluminum Rolled or None Monel None
Brass None Nickel None
Cu - Copper Annealed, Rolled or None Plastic Nylon, Polyethylene, Polypropylene,
PVC (CPVC), or Acrylic
CuNi - Copper/Nickel 70% Cu 30% Ni or 90% Cu 10% Ni Steel Carbon Steel, Mild or Stainless Steel
Glass Pyrex, Flint, or Crown Tin Rolled
Gold Hard-drawn Titanium None
Inconel None Tungsten Annealed, Carbide, Drawn
Iron Armco, Ductile, Cast, Electrolytic Zinc Rolled