5-25
Bench Configuration and
Calibration
The Mass ProPlate can be configured on the bench prior to mounting in
the field by using a personal computer and the Engineering Assistant
(EA) Software. All Mass ProPlate models have been configured using
the EA software at the factory using the process conditions given at the
time that the order was placed.
The EA software provides advanced configuration capabilities,
including flow parameters such as AIChE fluid, meter tube bore,
differential producer bore, and differential producer material
After bench configuration, the Mass ProPlate may be bench calibrated.
These procedures include absolute and differential pressure sensor
offset (zero) and slope (span) trim.
For information concerning Mass ProPlate bench configuration and
bench calibration, see Section 6: Using the Mass ProPlate Engineering
Assistant Software.
Write Protect and Failure
Mode Alarm Jumpers
Configuration data can be protected by moving the write-protect
jumper which, when installed, prevents any changes to the
Mass ProPlate configuration memory.
The Mass ProPlate is designed to automatically check its own operation
at timed intervals. If the diagnostic routine detects a failure in the
Mass ProPlate, the Mass ProPlate drives its output either below
3.75 mA or above 21.75 mA, depending on the position of the
failure mode jumper.
Both of these jumpers are located on the electronics board just inside
the electronics housing cover. (See Figure 9-1.) To avoid exposing the
Mass ProPlate electronics to the plant environment after installation,
set these jumpers during the commissioning stage on the bench.
The Mass ProPlate is shipped from the factory with the write-protect
jumper set to “OFF,” and the alarm jumper set to “High.”
Figure 5-9. Write Protect and
Alarm Jumpers.
OUTPUT ELECTRONICS BOARD
2))
21
ALARM
<
<
SECURITY
>
>
HI
LO
NOTE
Security jumper not installed = Not Write
Protected.
Alarm jumper not installed = High Alarm.
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