This function allows predictive adjustment of the leak rate for repetitive tests where the test time has to
be optimized.
The adjustment is made via the RS-232 serial link or logic inputs.
This function provides an adjustment and should not be confused with the correction coeffi-
cient.
This coefficient complements the correction coefficient.
Access: Menu [Test] [Dynamic calibration]
Choice - Setting limit
1)
Active To be enabled
Dynamic calibration activation
Enabled
Disabled
Value
(if 'Active' enabled)
To be set
Target value to reach (leak rate value of the installation to calibrate)
1 · 10
-19
– 1 · 10
+19
Coefficient Read only
Coefficient value calculated during dynamic calibration (coefficient applied
if dynamic calibration is enabled)
-
1) Initial setting: see chapter “Tree diagram to the Settings menu”
Prerequisites
►
Perform leak detector calibration.
►
Enable the correction factor (see chapter “Correction factor”) and set it.
►
Activate the dynamic calibration.
►
Set the target value.
►
Assign the logic inputs (see the 37-pin I/O operating instructions (see chapter “Applicable docu-
ments”)) or connect the RS-232 serial link.
Logic input RS-232 serial link command
Start/Stop dynamic calibration coefficient calculation Dynamic cal. Start: =CDC
Stop: =CDS
Start/Stop Test HV test Start: =CYE
Stop: =CYD
Start/Stop Memo function He memo Start: =MEF
Stop: =MER
Setting procedure for one test
1. Implement the preliminary conditions.
2. Activate the dynamic calibration coefficient calculation.
3. Start a test.
4. Activate the Memo function (logic input or RS-232 serial link command).
–
The new coefficient is automatically calculated and saved.
The coefficient calculated corresponds to the following ratio: target value/displayed leak rate
value to be adjusted
The calculated coefficient must be between 0.5 and 3 inclusive. If not, an error message is
displayed.
5. Stop the test and deactivate the Memo function (logic input or RS-232 serial link command).
6. Stop the dynamic calibration coefficient calculation.
Example:
●
Target value = 1 · 10
-7
●
Value of the leak rate displayed to adjust: 5 · 10
-8
●
Coefficient = 1 · 10
-7
/ 5 · 10
-8
= 2
●
As 2 is between 0.5 and 3, the coefficient is correct.
Setting procedure for several tests
Several tests can be run to calculate the dynamic calibration coefficient. This allows the coefficient val-
ue to be fine-tuned.
1. Implement the preliminary conditions.
2. Activate the dynamic calibration coefficient calculation.
Settings menu
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