Stainless steel bimetal thermometer with electric contact
Description
Stainless steel electric contact bimetal thermometer dial made of stainless steel, mainly used in the production site environment is corrosive or the site for food grade material medium and the temperature needs automatic control and alarm control output occasions. Stainless steel electric contact bimetal thermometer can directly measure the temperature of liquid, steam and gas medium in the range of -80 ~ 500℃ in various production processes. · The shell material is made of stainless steel, which can resist environmental corrosion. · The temperature is displayed on site, which is intuitive and convenient; · With automatic power cut and alarm function; · Safe and reliable, long service life; · A variety of structural forms to meet different requirements. Stainless steel electric contact bimetal thermometer is the use of temperature change to drive the contact change, when it and the lower limit contact or disconnect at the same time, so that the relay action in the circuit, so as to automatically control and alarm. Product execution standard: JB/T8803-1998 GB3836-83 · Nominal diameter of the dial: 100 · Accuracy grade: 1.5 (1.0) · Thermal response time: ≤40S · Protection grade: IP55 · Normal operating atmospheric conditions: Temperature -25 ~ +55℃, relative humidity ≤85% · Set point error: Set point error should not exceed 1.5 times the basic error limit. · Switching error: The switching error should not exceed 1.5 times of the basic error limit. · Switching repeatability: the limit range of switching repeatability is no more than 1/2 of the basic error limit J.D. Iv. Electrical parameters
| Rated power VA | High operating voltage V | z.u large allowable current |
10 | 220 a.c | 0.7 A |
24 d.c |
V. Product selection
| WSS | Bimetal thermometer | ||||||
X | Electrical contact structure | ||||||
Nominal diameter of dial | 4 - | Φ 100 | |||||
Dial form | 0 | Axial (straight type) | |||||
1 | Radial (angular) | ||||||
8 | Universal (adjustable Angle type) | ||||||
Mounting and fixing form | 0 | Unfixed device | |||||
1 | Movable external thread | ||||||
2 | Internal thread can be moved | ||||||
3 | Fixed thread | ||||||
4 | Fixed flange | ||||||
5 | Jacketed thread | ||||||
6 | Sleeve flange | ||||||
Form of protection | M | Upper and lower limits | |||||
N | Double upper limit | ||||||
P | Double lower limit | ||||||
Six, selection instructions: please provide the model, dial diameter, precision grade, installation and fixed form, temperature range, protective tube material, length or insertion depth. Sample selection: With the diameter of 219*8.5, measuring gas, temperature range 0 ~ 100℃, 1.5 grade, universal thread connection, material requirements of 1Cr18Ni9Ti thermometer dial with 100, with alarm control, high humidity, outdoor installation according to the above requirements selection is as follows: Bimetallic thermometer WSSX-481, electric contact, 0 ~ 100℃, L=150, M27×2, Class 1.5
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