WZP-3312A movable flange waterproof imported thermistor adopts imported temperature measuring elements, which can directly measure the surface temperature of liquid, steam, gas media and solids in the range of -200 ℃ to 500 ℃ in various production processes. Due to its excellent electrical output performance, it can provide accurate temperature change input signals for displays, recorders, regulators, scanners, data loggers, and computers.

Main technical parameters of WZP-3312A movable flange waterproof imported thermistor

Measurement range: -200~500 ℃

◆ Division number: Pt100

Accuracy level: ± (0.15 ℃+0.002 | t |), B level ± (0.30 ℃+0.005 | t |)

◆ Diameter of protective tube: 12mm at the upper end and 8mm at the lower end

◆ Material of protective tube: stainless steel 304321316, other materials must be specified

Thermal resistance wiring: three wire wiring, four wire wiring.

◆ Thermal response time: T0.5 ≤ 25S (the time required for the output of the thermal resistor to change to 50% of the change when there is a step change in temperature is called the thermal response time, represented by T0.5).

Thermal resistance nominal pressure: atmospheric pressure (generally refers to the static external pressure that the protective tube can withstand at room temperature without breaking. In fact, the allowable working pressure is not only related to the material, diameter, and wall thickness of the protective tube, but also to its structural form, installation method, insertion depth, and the flow rate and type of the measured medium).

Depth of insertion of thermal resistor: L=100-1600mm

◆ Thermal resistance self heating effect: When measuring a current of 5mA through a thermal resistance, the measured resistance increment converted to temperature value should not exceed 0.30 ℃.

Thermal resistance insulation resistance: The test voltage for insulation resistance at room temperature can be any value between 10-100V DC, with an ambient temperature range of 15-35 ℃ and a relative humidity not exceeding 80%. The insulation resistance value at room temperature should not be less than 100M Ω.

Execution standard: JB/T8622-1997 standard.

Principle of imported thermistor structure

Platinum resistance is a temperature sensor that measures temperature by utilizing the characteristic that the resistance of platinum wire also changes with temperature changes. Platinum resistance is composed of temperature sensing elements, stainless steel outer protective tubes, junction boxes, and various fixed devices for various purposes. There are two specifications of double and single element components. Double platinum resistance can output two sets of the same resistance signal for use at the same time. Stainless steel protective tubes not only have corrosion resistance, but also have sufficient mechanical strength to ensure that platinum resistance can be safely used in various occasions.

Installation picture of imported thermistor

◆WZP-3312 movable flange waterproof imported thermistor

L=100-1600mm waterproof junction box

Outer diameter of movable flange 70mm, center distance 54mm or as needed