Datasheet

13
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S15E.pdf
08.10.31
5
Environmental Tests
5
Environmental tests of MA40S4R/S as an example are
shown in below.
Environmental tests
No. Kind of Test Conditions
Judgement
1 Humidity Resistance
60°C, 90 - 95%RH, 100 hours
Variation of sensitivity
and S.P.L. is within 3dB.
2 High Temperature Storage
85°C, 100 hours
3 Low Temperature Storage
-40°C, 100 hours
4 Thermal Shock
With -40°C (30 minutes) and +85°C (30 minutes) as one cycle, 100 cycles.
(Resistanceof3.9kΩconnectedbetweenterminalsofsensor.)
5 Vibration
Maximum Amplitude : 1.5mm Vibrating frequency : 10 - 55Hz
Vibrating cycle : 1minute 3 hours in each of 3 directions
6 Solder Heart Resistance
Soldering terminal up to 2mm
below base at 350°C with soldering tip for 3 seconds.
7 Operating
Frequency 40kHz, Sine 24Vp-p, 1000 hours
Variation of S.P.L. is
within 6dB.