Kaidi KD-CWDZ31 Lightning Protection Waterproof Temperature Transmitter 0.5%FS Protection Grade is Up To IP68

CWDZ31 series temperature transmitter products use PT100 as the signal measuring element, and after automatic testing by computer, the zero point and sensitivity temperature compensation in a wide temperature range is carried out by the laser resistance trimming process. The amplifying circuit is located in the stainless steel shell, and the sensor signal is used as the standard output signal, which gives full play to the technical advantages of the sensor and makes the CWDZ31 series temperature transmitter have excellent performance. It is anti-interference, overload, small temperature drift and high stability. With high measurement accuracy, it is an ideal temperature measurement instrument in the field of industrial automation.

▲Widely used in various industrial fields 

a)Wide voltage power supply, nonlinear correction, high precision

b)Small size, light weight, easy installation

c)Lightning protection, cut-off frequency interference design, strong anti-interference ability

d)Wiring reverse and over-voltage protection, current limiting protection 

Measuring medium: liquid, gas

Overall material:304 stainless steel

Protective tube material:304 stainless steel(contact)  

Shell:304 stainless steel(contact)

Overall weight:≈600g

Casing weight: 120g(L=35mm)      130g(L=85mm)

                           140g(L=135mm)     150g(L=185mm)

                            170g(L=285mm)     

Measuring range:-50℃~100℃

Supply voltage:12~36VDC Regular

Output signal:4~20mA/RS485(Standard Modbus-RTU protocol)

Measuring accuracy:0.5%FS

Ambient temperature:-40~85℃(If the whole is immersed in liquid, the temperature of the measured medium should be within -20℃~60℃, otherwise it will damage the internal sealing structure of the transmitter)

Stable performance:±0.1%FS/year

Protection grade : IP68

Working conditions: ambient temperature(-40~85℃)

Pressure resistance:The pressure on the thermal protection tube varies with the length (see figure below) 

Response time:18S(without casing)    55S(with casing)

                      (If you need to improve the response speed, you can add a thermal medium into the case)

  (Comply with IEC6075, 0.4/S water flow, 10℃ step)

Medium flow rate: The maximum medium flow rate that the protection tube is subjected to decreases with the increase of the  insertion depth(as shown in the figure below)

Maximum power: current type(≤0.02Us (W))

  digital type(≤0.015Us (W))

  Note: Us=supply voltage  

Load characteristics:current load≤{(Us-9)/0.02(Us=Supply voltage)}Ω