FINETEK, RF-DIY-21 Float Switch

First , use and characteristic

The resistance of armor platinum is a kind of temperature sensor , it is more small in diameter than the assembling type resistance of platinum, flexible, suitable for installing the occasion that can't be installed in the assembling type resistance of platinum, have fast , such advantages as quality stabilizes , having long performance life of accurate sensitive , hot response time.

Protect and is in charge of adopting stainless steel outside the resistance of armor platinum , is full of high density and oxidize the material insulator inside, so, its mechanical intensity with very strong resist pollution and fining, is suitable for installing the occasion with abominable environment.

The resistance of armor platinum can be used for measuring- the temperature in 200 - +420 degrees Centigrade of ranges, can join and use with the copper conductor and instrument two times directly . It has good electricity to output the characteristic , can offer the accurate introduction &#118alue for the fact that show appearance , recording instrument , regulator , scanner , data recording instrument and computer .

Second, operation principle

The operation principle of the resistance of armor platinum is the same as ordinary thermal resistance.

Third, main technical parameter

1.Ratio of temperature sensing component resistance &#118alue (R0 ) and its resistance R (R100 ) of the thermal resistance in 100 degrees Centigrade: (R100/R0)

Graduation number Pt100: A grade R0 =100± 0.06Ω

B grade R0 =100± 0.12Ω

W100 =R (100 degrees Centigrade ) / R (0 degrees Centigrade ) =1.3850

2.Measure the range and permit difference

3.Hot response time

While jumping and changing the steps in temperature, the output change of the thermal resistance jumps 50% changed to equivalent to this stepsing , necessary time, is called the hot response time, express with τ 0.5.

4.Insulating resistance

The desirable direct current 10-100V wanton &#118alue of experimental voltage of the insulating resistance of the normal atmospheric temperature, the environment temperature is within the range of 12-35 degrees Centigrade, the relative humidity should not be greater than 80%; The &#118alue of insulating resistance of the normal atmospheric temperature should not be smaller than 100MΩ .

5.Since hot influence

It is 5mA that it is the heaviest that the thermal resistance allows to pass to measure the electric current, therefore Wen Sheng producing it is not greater than 0.3 degrees Centigrade.

Fourth, classification of resistance of armor platinum

1.Classification of the terminal box

Armor simple and easy type , waterproof type , socket type at present of terminal box , joining the many kinds of structure pattern of wire.

2.Install the regular form

The armor thermal resistance fixture is as follows, regular card is one set of types, can move the card in one set of types , regular flange type, can move flange type four kinds of structure patterns . 

Certified by:  CE and ROHS.

Delivery time: 10-12 days after payment.

Payment by: L/C, T/T, Western Union, PAYPAL

We are professional manufacturer in the meters, we would like to offer you service on this field. we could make meters according your requests and your accuracy.