WSSX seriesElectrical contact bimetal thermometerIt is an on-site detection instrument for measuring low to medium temperatures. It can directly measure the temperature of liquid, steam, gas media and environment within the range of -80 ℃ to+500 ℃ in various production processes. Electric contact bimetallic thermometers are widely used in industries and scientific research departments such as petroleum, chemical, machinery, shipbuilding, power generation, textile, printing and dyeing due to their waterproof, corrosion-resistant, intuitive, easy to read, mercury free, and durable design principles and structures.
1main features
On site temperature display, intuitive and convenient; Safe and reliable, with a long service life;
Multiple structural forms can meet different requirements. Mercury free, easy to read, sturdy and shock resistant.
The protective pipe material is made of 0Cr18Ni9 1Cr18Ni9Ti stainless steel and molybdenum titanium, with strong pressure bearing and anti-corrosion capabilities.
The core pulling thermometer can be maintained or replaced for a short period of time without stopping the machine.
The dial forms include axial type, radial type, universal type and other types, which are suitable for various on-site installation needs.
IIWorking principle
Electric contact bimetallic thermometer is composed of bimetallic sheets wound in a circular bending shape. When one end expands due to heat, it drives the pointer to rotate, and the working instrument displays the corresponding temperature value,
3、 Execution standards
JB/T8803-1998 GB3836-83
4、 Other parameters
Scale dial nominal diameter: 100
Accuracy level: (1.0), 1.5
Thermal response time: ≤ 40S
Protection level: IP55
Environmental temperature: -40~85 ℃
Angle adjustment error: The angle adjustment error should not exceed 1.0% of its range
Return difference: The return difference should not exceed the absolute value of the basic error limit
Repeatability: The limit range of repeatability should not exceed 1/2 of the absolute value of the basic error limit
5、 Electrical parameters

Rated power VA	High working voltage V	Maximum allowable current
10	220V AC	0.7A
	24V DC

6、 Selection of temperature range and reference temperature range
The selection of temperature range requires that the large scale range of the dial should be 1.5~2 times the working pressure, and the sum of the large and small range should be greater than 50 ℃
reference temperature range：℃
-80~40 -40~80 -20~60 -20~100 0~50 0~100 0~150 0~200 0~250 0~300 0~350 0~400 0~450 0~500 0~600
7、 Product selection

WSS Bimetal thermometer N earthquake-resistant structures X Electrical contact structure Nominal diameter of dial -4 Φ100 Dial form 0 Axial (straight) 1 Radial (angular) 8 Wanxiang (adjustable angle type) Installation fixed form 0 No fixed device 1 Movable external thread 2 Movable internal thread 3 Fixed thread 4 Flange 5 Ferrule thread 6 Card sleeve flange Electrical contact form M Upper and lower limits N Double upper limit P Double lower limit

8、 Selection Notice
Please provide the model, dial diameter, accuracy level, installation and fixing form, temperature measurement range, protective tube material, length or insertion depth.
Selection example: The on-site pipeline is made of Ø 159 * 4.5, measuring hot water with a temperature range of 0-100 ℃, 1.5 levels, radial threaded connection, material requirement 1Cr18Ni9Ti thermometer dial with a diameter of Ø 100, equipped with alarm control, high humidity on-site environment, outdoor installation, pipeline vibration, and good anti vibration performance
According to the above requirements, the selection is as follows: Seismic resistant electric contact bimetallic thermometer WSSNX-411, 0-100 ℃, L=120, M27 × 2 movable external thread connection, 1.5 level
9、 Wiring diagram