Additel 273E Series, Manual

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pressure - real time pressure;
e. Record the pressure at the end of the test time as the end pressure;
f. The entire leak detection process ends, and the final leakage = initial pressure - end pressure;
2. The whole process will be displayed in stages in the leak curve at the bottom of the screen.
7.3 PSV test
The calibrator provides function of PSV test, to test the safety pressure of the safety valves. Click the pressure module
on the top, to set relevant parameters, see table below:
Table 18 PSV test setting
Subject Valid value Description
Pressure module Internal pressure module, external module A or B Select the pressure module
Test time 00:00:00 ~ 00:10:00 Set test time
Pressure unit Different modules support different pressure units Select corresponding pressure unit
7.3.1 PSV test performing
1. Connect air circuit
a. Connect the device to the air circuit;
b. Press the Start icon on the right of the screen to start performing, apply the pressure gradually to the safety valve;
c. Count down the test time and record the real-time pressure value and create the pressure curve, then record the
maximum pressure during the process;
d. Count down complete, the entire leak test process finishes, save the data;
2. The whole process will be shown in the leak test curve at the bottom of the screen
7.4 Pressure delta
The calibrator provides the function of Pressure delta, which consists of two external modules (A and B). This provides
a convenient differential pressure (DP) test solution in a high static pressure environment. The set parameters of the DP
module are shown in the table below.