Performance requirements of cartridge heater

Performance requirements of cartridge heater

1 heating time

Under the test voltage, the time for the component to rise from the ambient temperature to the test temperature should not exceed 15 minutes

2 Rated power deviation

Under the condition of sufficient heat, the deviation of the rated power of the component should not exceed the range specified below;

For components with rated power less than or equal to 100W: ±10%.

For components with rated power greater than 100W, it is +5%～-10% or 10W, whichever is greater.

3 Leakage current</DIV>

The cold leakage current and the leakage current after the water pressure and sealing test should not exceed 0.5mA

The thermal leakage current at working temperature should not exceed the calculated value in the formula, but the maximum should not exceed 5mA

I=1/6 (tT×0.00001)

I—hot leakage current mA

t—heating length mm

T-working temperature℃

When multiple components are connected in series to the power supply, the leakage current test should be performed on this group of components as a whole.