Condec 3030 User Manual

Page 22

8.3 Percent Error Function

The calibrator features a unique function which can calculate
pressure vs. milliamp error as a percentage of the 4 to 20 mA loop
span. The percent error mode uses all 3 screens and has a unique
menu structure. It simultaneously displays pressure, mA and
percent error.

Figure 12.

Example:

Suppose a pressure transmitter under test is 30 psi (2 Bar) Full Scale
and outputs a corresponding 4 to 20 mA signal. The user can
program in a 0 to 30 psi pressure span into the calibrator and the
calibrator will calculate and display the deviation or % Error from the
expected 4 to 20 mA output. This eliminates the need for manual
calculations and also helps if it becomes difficult to set an exact
pressure.

To use the %ERROR function proceed as follows:

1. With the calibrator turned on and operating press the F3 key to

activate the MORE menu option. Now press the F1 key to activate
the %ERROR option.

2. Press the F1 key to select the CONFIG option.

3. The first option is setting the Port, use the select option to scroll

through the port choices, when finished select the NEXT option.