PROVASET T3LPF REV.20210610
44
kPa Pa
PR
T1 T2 T3
Q+
Q-
T0
P0
PR % MIN
FILLING SETTLING MEASUREPRE-FILLING
PRESSURE
DISCHARGE
TEST
PRESSURE
PRESSURE
DROP
RAMP 50% RAMP 50%
5.6.2 Leak test: pressure regulation
The pressure is automatically regulated by a proportioning valve with a PID algo-
rithm (proportional, integral, derivative); the parameters of the algorithm must be
selected to optimise the testing time and the stability of the test conditions; the opti-
mal choice depends on the type of component being tested:
• : automatic adjustment according to response speed and ac-
tion intensity.
•
• : used for volumes < 1 litre
• : used for volumes < 2 litres
• : used for large volumes
Only with Automatic PID, response speed: range 1:12
Only with Automatic PID, action intensity: range 1:15
5.6.3 Leak test: Fixed PID
a manual pressure regulator. The valve is piloted with a preset value in the test pro-
gram, accessible only when the test pressure is programmed.
Represented By: GTEK AUTOMATION Lake Forest, CA 92630 Ph. 949-680-4242 www.gtek-automation.com