Baker Hughes Panametrics AquaTrans AT600, Руководство пользователя

Страница: 21 / 174

AquaTrans™ AT600 User’s manual 11
Chapter 2. Clamp-on fixture and transducer installation
Chapter 2. Clamp-on fixture and transducer installation
2.1 Installing an AT600 clamp-on fixture and transducer system
The instructions in this section are for installations using the AT600 clamp-on fixture only. For installations using other
clamp-on fixtures, see “Installing a CF-ES clamp-on fixture and transducer system” on page 16 or “Installing a general
clamping fixture and transducer system” on page 17
2.1.1 Transducer spacing = 32 to 250 mm or 50 to 320 mm, traverses = 2, fixtures = 1
Note:
A two traverse installation with one clamp-on fixture is the standard AT600 configuration.
When the required transducer spacing is 32 to 250 mm for a 2 MHz transducer or 50 to 320 mm for a 1 MHz or MHz
transducer, one clamp-on fixture is needed for a dual traverse installation. Proceed as follows:
1. Install the AT600 clamp-on fixture with transducers on the pipe using two mounting straps.
a.
Choose a location with enough straight pipe run (refer to Figure 7 on page 7).
b. Install the two mounting straps on the pipe about 12 in. (30 cm) apart (see figure 10 below).
Figure 10: Mounting straps installed on pipe
c. Hold the fixture against the pipe and move the mounting straps onto the fixture. Then, tighten the screws on
the straps, and verify that the straps remain in place on the fixture (see figure 11 below).
Figure 11: 2 Traverse installation with 1 clamp-on fixture
IMPORTANT: If there is any type of coating or protective layer on the outer pipe surface, it must be removed at the
locations where the transducers and the couplant contact the pipe surface.
2. Connect the power and transducer cables to the AT600, as shown in Figure 23 on page 19
3. If you haven’t already done so, power the meter on and program your site data to determine the required
transducer spacing (see “Sensor setup” on page 56).
Move
Align
Screw
tighten