MULTI GAS LEAK DETECTOR
ME-LOKATOR VL30 – REFRIGERANT GASES
PAGE |
11
LOKATOR VL 30 EN
5.4
CALIBRATION FUNCTION
Access to the CALIBRATION function by selecting on the main
DETECTION screen "CAL." [chap. 5.2.2
N°3
]
During its use, the sensitivity of the detection cell may vary depending on
various factors such as the frequency of detection, ambiant contamination
and other soiling factors.
• Before the start of a CALIBRATION procedure, the probe should be at least in operation for 10 minutes minimum
and in a atmosphere not or very little contaminated to ensure optimum calibration.
• The CALIBRATION procedure must be carried out in a room with a low airflow.
• A CALIBRATION on a leakage value less than 3 g/yr must be ONLY performed in an environment without NO
CONTAMINATION.
5.4.1
CHECK OF CALIBRATION
• Use a calibrated leak according the gas of active profile A or B [chap. 6] and set its value.
-
CALIBRATED Leak R134a
0,5 to 8 g/yr
-
CALIBRATED Leak 1234ze
0,5 to 8 g/yr
-
CALIBRATED Leak R32
0,5 to 8 g/yr
-
CALIBRATED Leak R290
0,5 to 8 g/yr
-
CALIBRATED Leak R410
0,5 to 8 g/yr
-
CALIBRATED Leak R600
0,5 to 8 g/yr
-
CALIBRATED Leak CUSTOM
0,5 to 8 g/yr
• Select "TEST" to start a calibration check procedure.
• At the end of the check, the display indicates whether the TEST CALIBRATION is "OK" or "FALSE".
• Following a TEST CALIBRATION, if the TEST is "FALSE", initiate a CALIBRATION procedure.
5.4.2
PRECAUTIONS TO BE TAKEN BEFORE CALIBRATION PROCEDURE
• If the calibrated leak is adjustable pressure, check the pressure corresponding to the calibration value.
• During the calibration procedure, move the probe smoothly.
• Position the nozzle of the probe pipe directly into the orifice of the calibrated leak.
5.4.3
CALIBRATION PROCEDURE
Use a calibrated leak according the gas of active profile A or B [chap. 6], set its value and then press the CALIBRATION button:
-
CALIBRATED Leak R134a
0,5 to 8 g/yr
-
CALIBRATED Leak 1234ze
0,5 to 8 g/yr
-
CALIBRATED Leak R32
0,5 to 8 g/yr
-
CALIBRATED Leak R290
0,5 to 8 g/yr
-
CALIBRATED Leak R410
0,5 to 8 g/yr
-
CALIBRATED Leak R600
0,5 to 8 g/yr
-
CALIBRATED Leak CUSTOM
0,5 to 8 g/yr
CUSTOM gas: The LOKATOR VL30 has 2 CUSTOM gases in order to calibrate the detector on a gas not included in the library.
-
CUST.1> Position for R134a type gases, ...
-
CUST.2> Position for gases type R410, R32, R600, ...
Refer to the after sales service to guide you on the best CUSTOM position to use.
• Then follow the different steps of the CALIBRATION protocol displayed on the screen.
• At any time, you can cancel the CALIBRATION procedure by selecting « CANCEL ».
• If the CALIBRATION protocol ran without errors, the new calibration value is saved automatically.
• It is possible to reset the calibration value to the factory calibration value in the OPTION menu of the LOKATOR VL30.
[chap. 6.4.3]
If the message CALIBRATION FAIL is displayed, it is possible that the flow of the calibrated leak is too low or that the
sensing cell is desensitized; making the calibration impossible.
Check the calibrated leak or the sensor cell.
