1.Electrical performance specifications & physical
characteristics
No.ItemsStandard and test
condition1FunctionTransmitter-Receiver2Center
frequency(KHz)40.0±1.0(Piezoelectric impedance
analyzer)3Sensitivity(us)≥200(normal temp test 0.8mΦ75mmPVC
pipe)4Residual oscillation(ms)=0.8m(normal temp test Φ75mmPVC
pipe)8Max Input Voltage(Vp-p)140 (pulse width 0.5ms, interval
10ms)9Operating Temperature (ºC)-30~+8010Storage Temperature
(ºC)-40~+8511TerminalXH2.54*2P Connector12Length(mm)2500±30mm
customized13Weight(g)4514ColorCustomized15Outer shell
materialPlastic 2.Product picture3. Environmental testNo.Test
itemsTest conditionStandard1High temp storage test144 hours at
+ 85 ºCAfter the test and place in + 25 ºC (room temp) for 24
hours, the sensitivity and residual vibration change shall not
exceed 30% compared with the initial value 2Low temp storage
test144 hours at - 40 ºC3High temp and high humidity storage
test144 hours at + 65 ºC and 85 ± 5% RH4Thermal shock testParallel
3.9k Ω resistor at both ends of the probe, keep the temp at -
40 ± 5 ºC for 0.5h, and increase the temp to 85 ± 5 ºC within
5 minutes and keep for 0.5h.100 cycles.After the test and
place in + 25 ºC (room temp) for 24 hours, the sensitivity and
residual vibration change shall not exceed 30% compared with the
initial value 5Vibration testProducts bear the vibration with
frequency 10-55hz, amplitude 1.5mm,and sweep rate 1oct / min, from
X, Y and Z directions for each 2 hours respectivelyAfter the test
and place in + 25 ºC (room temp) for 4 hours, the sensitivity
and residual vibration change shall not exceed 30% compared with
the initial value 6Monomer drop test15 free fall tests carried out
from 100 ± 10cm height to 50mm thick wooden floorAfter the test and
place in + 25 ºC (room temp) for 4 hours, the sensitivity and
residual vibration change shall not exceed 30% compared with the
initial value7Strength test of outletApply 9.8N pulling force
between shell and wire for 30 secondsThe wire is not
loose or falling off, the product function is normal, and the wire
is not damaged8Protection levelPlace the probe in 15cm deep water
and soak for 24 hoursTake out the probe from the water and install
it on the test board to measure the distance. The probe works
normally without long sound.9High and low temp characteristic
testKeep the temp at -40ºC for 2h,increase to 25ºC and keep for
2h,increase to 85ºC and keep for 2h. After the test and
place in + 25 ºC (room temp) for 2 hours, the sensitivity and
residual vibration change shall not exceed 30% compared with the
initial value10High and low temp working testUnder high temp
85 ºC, low temp - 40 ºC, working voltage 140 Vp-p, pulse number 20,
continuous working 48 hoursProbe works normally (sensitivity and
residual vibration are within normal range)4.Test conditions and
instrumentsNo.Test itemTest instruments/methodTest
condition1resonant frequencyImpedance analyzerambient temperature
25 ± 5 ºC2static capacitanceLCR bridge measuring instrumentambient
temperature 25 ± 5 ºC3residual oscillationKT test equipmentambient
temperature 25 ± 5 ºC4sensitivityKT test equipment0.8m at room
temperature, target Φ 75mm PVC pipe5Angle (X & Y axis)KT test
board, as per Fig.1Under normal room temperature, the probe is
500mm from the ground, 500mm from the object to be detected, and
the object to be detected is Φ 75mm PVC pipe, 1000mm high. The test
environment: 2 meters in front and 1.5m in the left and right
without obstacles6Maximum allowable input voltageKT test board and
Oscilloscope140vp-p, pulse width 0.5ms,interval 10ms7Mean time
between failuresaging test rackTest temp 25±5ºC5.Detection angle
test diagram 6.Precautions 1. The product can only be used in the
air, not in liquid2. In order to prevent the sensor from failure,
working failure or performance degradation, the anti failure
function shall be added to the product design, and the product
shall not be used under the following or similar conditions. (a)
strong shock or vibration (b) prolonged exposure to high
temperature and humidity;(c)In corrosive gas or sea
breeze(d)Exposure to dissolved organic matter(e)Dusty environment;
(f)Over allowable input voltage7.Quality assuranceThe sensor
defects due to the manufacturer during the warranty period of the
product can be replaced free of charge.The following situations are
not covered by the warranty.improper use or handling by users.
changed or repaired by the users. any other situation
that does not belong to the responsibility of the manufacturer,
such as natural disasters, accidents, etc. /* January 22,
2024 19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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