詳細信息
■ 電氣性能Performance Parameter
1. 標稱電阻值Resistance(R25)
要求requirement:TH1:R25=10KΩ±1%。
測量方法test method:在25℃±0.05℃的高精度恒溫油槽中測量,采用六位半歐姆表測試。(25℃±0.05℃ in the oil.)
2. B值B-value
要求requirement:TH1:B25/85=3950K±2%。
測量方法test method:在高精度恒溫油槽中分別測量25±0.05℃、85±0.05℃電阻值,然后按以下公式計算。
The resistance at25±0.05℃、85±0.05℃in the oil Then calculate it in the following formula:
Bt1/t2=ln(Rt1/Rt2)/(1/(t1+273.15)-1/(t2+273.15))
B(25/85)=4098.6× lg(R25/R85)
■ 熱時間常數(shù)Thermal time Constant(τ)
要求requirement:τ=10~18s
測量方法test method:以空氣為介質(zhì),產(chǎn)品從50℃空氣中放入到25℃空氣中電阻值達到34.2℃對應(yīng)值時的時間。In the air, When the products be put into the air at25℃ from the air at50℃ ,Thermal time constant is the time
that cost by the resistance becoming to be the value at34.2℃.
■ 耗散常數(shù)Dissipation Constant(δ)
要求requirement:δ=1.9~3.0mw/℃
試驗方法test method:(被測產(chǎn)品在25±0.5℃靜止空氣中接入以下電路。)
(The product will be join with the following circuit at 25±0.5℃in still air. )
■ 最大額定功率Max. rated power
要求requirement:P≈500mw
■ 絕緣電阻Insulation resistance
要求requirement:
試驗條件test condition:500v直流電壓下所測50MΩ以上(在玻管與引線間測量)。At DC 500v.(Between glass and lead wire)
■ 工作溫度范圍:-50℃~+300℃。
Operating temperature range:-50℃~+300℃。
■最大允許電流Max. Permissible Current
要求requirement:0.72mA
試驗條件test condition:在25℃靜止空氣中,溫度超過傳感器正常工作溫度范圍,能容許的最大電流。The current which can be applied to the sensor for rised upper limit of operating temp. range at25℃in still air.