Instruction Manual
D102005X012
846 Transducer
June 2017
36
9. Hand tighten the module cover as much as possible. Use a wrench or long screwdriver shaft to tighten the module
cover an additional 1/4 to 1/2 turn [24 to 27 NSm (18 to 20 lbfSft)]. For units with ATEX/IECEx Flameproof approvals,
make sure the cover lock and screw are securely re‐installed. The screw accepts a 3 mm hex drive.
Note
When the module cover is tightened, connection is made with the electrical feedthroughs and span and zero screws, and the
module final assembly O‐rings become seated. Failure to fully tighten the module cover may prevent the transducer from
operating properly.
Electronic Circuit Board
WARNING
Refer to the Maintenance WARNINGS at the beginning of this section.
The electronic circuit board is located on top of the module final assembly, as shown in figure 15. Beneath the circuit
board and permanently attached to it is the pressure sensor. Two jumpers on the circuit board control various
functions of the transducer. Figure 18 shows the location of these jumpers.
Figure 18. Circuit Board Jumper Positions
RPR ON
RPR OFF
HIGH RANGE
LOW RANGE
A6652
Optional Remote Pressure Reading (RPR) Jumper
Remote Pressure Reading (RPR) is an optional diagnostic feature that enables the operator to determine the
transducer output signal from any location along the signal wire path. The transducer generates a frequency signal
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