Additel 273E Series, Manual

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7. Applications
7.1 Units converter
The calibrator provides a unit converter for pressure units and temperature units. Users can select multiple pressure
units or temperature units for conversion. Click the unit converter icon on the main interface of the device to enter the unit
converter. Click icon on the right top to select and switch between different types of units. Click the unit under the
value display to select and switch between different units.
7.2 Leak test
The calibrator provides a pressure leak test function, which can perform self-checking on the seal of the calibrator. Click
on the pressure module column to set the test parameters, see the table below:
Table 17 Leak test setting
Subject Valid value Description
Pressure type GP/ AP
The pressure type being recorded, view detail according to
calibrator’s module
Pressure unit Pressure unit Select corresponding pressure unit
Waiting time Numbers The pressurizing time of external module
Test time Numbers Total record time
Unit of the rate Second/ minute Displayed unit after calculation
7.2.1 Leak Test Performing
1. Connect to air circuit
a. Connect the device to the gas circuit;
b. Click the start icon at the bottom of the screen, apply pressure to the leak test point;
c. Start counting down the waiting time, and record the real-time pressure at the end of the waiting time as the initial
pressure;
d. Start the test, count down the test time, and start to calculate the real-time leakage, real-time leakage = initial