Additel 273E Series, Руководство пользователя

Страница: 42 / 56

32
3.2.4 Process variable setting
The HART transmitter has a variety of process variables to choose from, and the calibrator provides the function of
viewing and selecting the process variables of the transmitter.
Table 9 HART process variable
Subject Description
Process Variable
The unit of the master variable depends on the setting of the transmitter. Please refer to transmitter’s
output setting for details
Output current Transmitter output current, unit: mA
Percentage
The percentage of readout in the range of the transmitter
Loop Current Loop current of the transmitter, unit: mA
Second variable The second variable of the transmitter, depends on the settings of the transmitter manufacturer
Third variable The third variable of the transmitter, depends on the settings of the transmitter manufacturer
Forth variable The forth variable of the transmitter, depends on the settings of the transmitter manufacturer
3.3 Pressure measurement
There is built-in pressure module on the bottom of the calibrator, and the default module for measuring is . And the
external pressure modules A and B are available for selection once connected. To enable the differential pressure
measurement in the Pressure Delta application (refer to Section 7.4), once the required condition is met, it can be
switched to differential pressure measure
. Click the pressure unit above the measured value to switch the units in
the pop-up window.
Click the menu button in the pressure measurement channel and click the "Settings" menu in the pop-up menu to
set the pressure type, resolution, stability, tare and other functions of the current pressure measurement channel.