Bimetal Thermometer with PT100 RTD Sensor Temperature Transmitter |

Bimetal Thermometer with PT100 RTD Sensor Temperature Transmitter |

Bimetal Thermometer with PT100 RTD Sensor Temperature Transmitter

Summarize 

Bimetallic thermometers are made up of bimetallic strips formed by joining two different metals having different thermal expansion coefficients. Basically, bimetallic strip is a mechanical element which can sense temperature and transform it into a mechanical displacement. This mechanical action from the bimetallic strip can be used to activate a switching mechanism for getting electronic output. Also it can be attached to the pointer of a measuring instrument or a position indicator. Various techniques such as riveting, bolting, fastening can be used to bond two layers of diverse metals in a bimetallic strip. However the most commonly used method is welding. Since two metals are employed to construct a bimetallic strip, hence they are named so.

Bimetallic thermometer is used for field testing of low or middle temperature ( from -80°C to 500°C), Can directly measure the temperature of all kinds of liquid, steam and gas medium.

 Feature 

 1.Local Display , robust and inexpensive.

2.Accuracy is between +or- 2% to 5% of the scale.

3. Stand 50% over range in temperaures.

4.All-Stainless Construction

5.Hermetically sealed 

6.Standard NPT connections 

7.OEM Logos Dials/Custom Dial

8.Dials sizes DN60,DN80,DN100,DN120,DN150

  Measurement range and applicable range

Measure range

Application range

-80 to 40℃

Industrial and commercial

laboratory

-40 to 80℃

√

√

0 to 50℃

√

√

0 to 100℃

√

√

0 to 150℃

√

√

0 to 200℃

√

√

0 to 300℃

√

√

0 to 400℃

√

√

0 to 500℃

√

√

  Ambient condition

Working space

Ambient Temp.

Relative humidity %

sheltered location

-25 to 25℃

5-100

Outdoor

-40 to 85℃

5-100

  Principle 

The bimetallic thermometer consists of a bimetallic strip. A bimetallic strip is made of two thin strips of metals which have different coeffcients of expansion. The two metal strips are joined together by brazing, welding or reveting so that the relative motion between them is arrested.

The bimetallic strip is in the form of a cantilever beam. An increase in temperature will result in the deflection of the free end of the strip as shown i diagram. This deflection is linear and can be related to temperature changes.

The radius of the curvature of the bimetallic strip which was initially flat is determined using the following relationship.

R= t{3(1+m)² + (1+mn)[m²+1/mn]}/6(ah-al)(T2-T1)(1+m) ²

where,
R= radius of the curvature at the temperature T2.
T = total thickness of the bimetallic strip = (t1+t2)
m=t1/t2 = Thickness of lower – expansion metal/thickness of higher – expansion metal.
l= coefficient of expansion of lower expansion metal.
h= coefficient of expansion of higher expansion metal.
T1 = Initial temperature.
T2 = temperature.

Q:How long will you get our reply?

A: We will contact you as soon as possible but within 12 hours once getting your inquiry.Whatsapp:+86-15052699328; Website: www.bcstgroup.com
Q:Could I get samples?
A:Yes, samples are available. 
Q: What certificates do we have ?
A:We have the certification of ISO,CE, SIL2, SGS etc.,we could send them to you by email.
Q:How is the price?
A:As we believe the quality is the most important,we will provide the best quality  with moderate price.
Q:Could you provide me the shortest lead time?
A:We have inventory for standard models. Pls tell me your detailed requirements, we will send to you as early as we can. 
Q:Could I visit your factory?
A:Welcome! our factory is located in Jinhu, Jiangsu province, China.
Q: How soon can you arrange the production?
A: Once getting your product confirmation and receiving your payment, we will arrange the production immediately. 

Q: What are your brand names for international market?
A: BCST is the brand for our international marketing. 

Mobile/Whatsapp:008615052699328 

Skype:emilyxyd     Wechat:emily_bcst

Email:info#bcstgroup.com   sales#bcstgroup.com

www.bcstgroup.com    www.bcstgroup.net