Troubleshooting With Transducer Test Blocks; Using The 1012Tb-1 And 2 Test Blocks - Siemens SITRANS F Operating Instructions Manual

Section 2

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 1010P, transducers and their cables. If the system operates properly using the test
block, then focus on application conditions as the source of the problem. Series A and B 1011 trans-
ducers 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 computer and 991 transducers from size 0
to size 3. Note that although the 1010 computer operates with our 991 size 4 and 5 transducers, testing
of these sizes with a 1010 computer is not currently supported.
2.11.8 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 entered, and the surface to be used with the
specific transducer size. See drawing below.
Transducer testing
surface for an "A"
size transducer.
MOUNTING TRANSDUCERS ON A 1012 TRANSDUCER TEST BLOCK
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.
Using a coupling compound (preferably CC-102), mount the transducers on the pipe simulator as
shown above. Slide each transducer until it presses against the pin-stop. Use the clamping screws
to hold the transducers in place.
Connect transducer cables between each transducer and the meter connectors for the channel
under test. The Up and Down orientation is not important.
Transducer clamping
screw
Transducer
Clamping
Bracket
Transducer
under test
This example shows testing
for Size B. Rotate brackets
180 degrees to mount Size
A transducers.
2-75
1010PFM-3G
Slide transducers firmly against
transducer pinstops.
Transducer
under test
This label shows the
data entry para-
meters 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.