Martel Electronics BetaGauge 3II - Manual (Page 156)

7-15 Doc. Cal. Mode
Choosing Appropriate Modules
In choosing the appropriate modules for the test point
values of the current tag, you can use the following
examples as guidelines.
Example 1: Over-Pressure Protection
For those tags that require a pressure module, the
BetaGauge II will accept a 5000 PSI module to perform
a 5 PSI test. However, if you install a 5 PSI module for
a test that requires 200 inches of water column, the
status message will read Wrong Module(s). This
message ensures that you will not over-pressure a
module.
Example 2: Ensuring Proper Module Accuracy
To help you determine if you have installed a module
with proper accuracy, you can use the Test Setup screen
to view the highest and lowest test point values of the
tag.
For example, a P/I instrument has an input pressure test
point range of 3 to 15 PSI. Therefore, the BetaGauge II
will display 3 for the minimum and 15 for the
maximum. This information allows you to select a
module that is as close to the maximum value as
possible. For instance, (given the above mentioned test
point range of 3 to 15 PSI) if you have a 30 PSI module
and a 50 PSI module, then the best module to install is
the 30 PSI module. Furthermore, a 15 PSI module
would be an even more accurate module to install.