WZPK thermocouple technical parameters of product standards: iec751; jb / t8623 - 1997; jb / t8622 - 1997; The normal temperature insulation resistance; Thermocouple in the ambient temperature for 15 - 35 ° c, relative humidity is not more than 80%, the test voltage for 10 - 100v( Dc) Electrode and the outer casing of the insulation resistance between > 100 m Ω. WZPK thermocouple measuring range: thermocouple temperature sensing element resistance at 100 ℃ ( r100中) And it is in 0 ℃ when the resistance ratio (r0 r100中/ r0) A grade dividing pt100: r0 = 100 + 0. 06 Ω b r0 = 100 + 0. 12Ωr0 / r100中= 1。 3850 WZPK thermocouple: thermal response time step change in temperature, thermocouple output changes to the equivalent of 50% of the step change, the time required, known as the thermal response time. The normal temperature insulation resistance experiment voltage dc 10 - desirable 100 v arbitrary value, environmental temperature in 15 Relative temperature 35 ℃ range, should be no greater than 80%, larger measurement by thermocouple current was less than 5 ma.