2-84
1010PVNFM-3A
Section 2
Transducer clamping
screw
Transducer testing
surface for an “A”
size transducer
Slide transducers firmly against
Transducer Pinstops
Transducer
under test
Transducer
under test
Transducer
Clamping
Bracket
Example shows testing for
size B. Rotate brackets 180
°
to
mount Size A transducers
This label shows the
data entry parameters
for size “B”. Size “A”
parameters appear on
a label on the other
side plate
This arrow points to
the surface associated with the
xdcr size identified on the label
2.11.8 TROUBLESHOOTING WITH TRANSDUCER TEST BLOCKS
To resolve an apparent system malfunction, you have to determine whether the problem is
due to equipment failure or an application condition. Our 1012 and 996 Transducer Test Blocks
allow you to bench test the flow computer, transducers and their cables. If the system oper-
ates properly using the test block, then focus on application conditions as the source of the
problem. Series A and B 1011 transducers use the 1012TB-1 Test Block and series C and D use
the 1012TB-2 Test Block. At the present time, neither one support the 1011 High Precision
transducers.
The 996PSP-pipe simulator allows you test a 1010 series flow computer and 991 transducers
from size 0 to size 3. Note that although the 1010 flow computer operates with our 991 size 4
and 5 transducers, testing of these sizes with a 1010 flow computer is not currently supported.
2.11.9 USING THE 1012TB-1 AND 2 TEST BLOCKS
The 1012TB-1 and 1012TB-2 test blocks provide two test surfaces. Each surface supports
a specific transducer size. For example, one surface of the 1010TB-1 supports Size “A”
transducers and the other supports Size “B” transducers. The 1012 pipe simulators include
two labels, one on each side-plate. The labels identify the transducer size, data to be enter-
ed, and the surface to be used with the specific transducer size. See drawing below.
MOUNTING TRANSDUCERS ON A 1012 TRANSDUCER TEST BLOCK
1. Identify the side of the simulator that applies to the transducers under test. Rotate the
clamping bracket as required to mount transducers on the test surface.
2. Using a coupling compound (preferably CC-102), mount the transducers on the pipe simu-
lator as shown above. Slide each transducer until it presses against the pin-stop. Use the
clamping screws to hold the transducers in place.
3. Connect transducer cables between each transducer and the meter connectors for the chan-
nel under test. The Up and Down orientation is not important.
