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J-type thermocouple, J-type armored thermocouple, J-type anti-corrosion thermocouple, assembled J-type thermocouple
Product name: J-type thermocouple, J-type armored thermocouple, J-type anti-corrosion thermocouple, assembled J-type thermocouple Product No .: 10333-193
Thermocouple time constant
(96 bytes) Minimum insertion depth of thermocouple: should be no less than 8-10 times the outer diameter of its protective sleeve (except special products)
(96 bytes) Insulation resistance: When the ambient air temperature is 15-35 ° C and the relative humidity is <80%, the insulation resistance is ≥5 Megohm (voltage 100V). Thermocouple with splash-proof junction box, when the relative temperature is 93 ± 3 ℃, the insulation resistance is ≥0.5 megohm (voltage 100V)
anniu.gif (96 bytes) Insulation resistance at high temperature: The insulation resistance (per meter) of the thermocouple (including double-branch) and the protection tube and the double-branch hot electrode at the high temperature should be greater than The values specified in the table below.
Installation and use of thermocouple
The installation location of the thermocouple should be convenient for construction and maintenance. Avoid near the furnace door, or too close to the heating body and strong magnetic field, the temperature at the junction box does not exceed 100 ℃. The installation position should be as vertical as possible, but it must be installed obliquely when there is a flow rate. The outlet of the terminal box should face downward.
Thermocouples with porcelain protection tubes must be protected from rapid cooling and explosion, and should be explosion-proof. When installing, choose a place that does not prevent the heated object from moving. Porcelain jackets cannot measure liquid temperature.
The thermocouple should be wired in accordance with regulations, the lead should avoid the heat source, and the polarity of the compensation wire should not be reversed when wiring. The condition of the protective tube should be checked frequently, and measures should be taken immediately if oxidation or deformation is found. Check regularly.
When ordering, user's note: (1) product name, (2) product model, (3) index number, (4) protection tube material and diameter, (5) length L and insertion depth, 1 (6) quantity (7) fixed thread M (8) Special technical requirements.