product overview
The WZRK series armored platinum thermistor is a temperature sensor with strong anti pollution and excellent mechanical strength, suitable for installation in harsh environments.
Product Features
The WZRK series armored platinum thermistor has the advantages of precise sensitivity, fast thermal response time, stable quality, and long service life. Armored platinum resistance thermometers can be used to measure temperatures within the range of -200~+500 ℃, and can be directly connected to secondary instruments using copper wires. Due to its excellent electrical output characteristics, it can provide accurate input values for displays, recorders, regulators, scanners, data loggers, and computers.
Parameter Options
1. Range specifications
Model | Measurement range | Accuracy | Allowable deviation △ t (℃) | Diameter of protective tube | τ0.5 |
WZPPt100 | -200~+500 | A-level |
-Allowable deviation at 200~+650 ℃ ± (0.30+0.002 ∣ t ∣) | 3 | ≤3 |
4 | ≤5 | ||||
Grade B | -Allowable deviation at 200~+800 ℃ ± (0.30+0.005 ∣ t ∣) | 5 | ≤8 | ||
6 | ≤12 |
Note: In the formula, "t" represents the absolute value of the measured temperature of the temperature sensing element
2. Nominal pressure:
Generally refers to the static external pressure that the protective tube can withstand at room temperature without breaking, and the test pressure is generally 1.5 times the nominal pressure. The allowable nominal 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 type of flow velocity of the measured medium.
3. Thermal resistance insulation resistance:
The test voltage for insulation resistance at room temperature can take any value from 10 to 100V DC. The ambient temperature should be within the range of 15-35 ℃, and the relative humidity should not exceed 80%. The insulation resistance at room temperature should not be less than 100M Ω.

YDM-1 Intelligent Pressure Gauge Manual
The YDM-1 intelligent pressure gauge adopts imported solid electronic measuring components and high-precision amplifiers, which can be used to measure 0