CESVA TA120 Maintenance Manual

TA120
TA120 NOISE SENSOR MAINTENANCE GUIDE
MN_TA120_v0004_20250313_EN
Noise measuring sensor
recommends an annual acoustic check and a check of the condition of the TK120 outdoor
kit. It also recommends check BA120/BA127 battery every two years, en if these have been installed.
VERIFICACIÓN DE SENSIBILIDAD ACÚSTICA
The TA120's sensitivity check should be performed with a Class 1 calibrator with metrology and current
checks, and the CESVA Sensor Manager configuration software.
To carry out the sensitivity check of the TA120, the following steps must be followed:
1. Remove the 4 screws on the front cover with a screwdriver. Remove the front cove
2. Turn on the TA120 (ensure that it is is properly powered) and connect the USB cable between the
TA120 sensor and PC.
3. Run the "CESVA Sensor Manager" program on the PC and click "Connect".
4. Unscrew clockwise the bottom of the outdoor kit TK120 and carefully remove it.
5. Insert the microphone gently but firmly into the hole of the calibrator
7. Turn on the calibrator and wait a minimum of 30 seconds for the sound level to stabilize.
8. Check the level is within the 93.9 ± 0,5 dB range.
• If the deviation < 0,5 dB, the verification is successful and no action is required.
• If 0,5 dB < deviation < 1 dB, we recommend keeping the TA120 un-
der observation until the next verification. Si If in the next check it is
still within this range, use the + / - buttons until the value is correctly
adjusted. Then press the "Save setting" button.
• If the deviation > 1,0 dB, TA120 should be sent to the CESVA technical service
9. Finally, undo the previous steps.
EN
93.9
dB
1