What Is The Standard Range Of Power Hot Coil Heater Power Deviation?

1. Can the coil heater be biased?

In fact, understand the production process of coil heaters (the heating element inside the electric heating tube is the heating wire, the heating wire will be biased during the process of automatic winding, shrinking, annealing, etc.) You will know that the power of the coil heater hot runner is There will be a range of deviations, all of which are qualified products, which can be used with confidence.

Second, the standard range of power hot runner coil heater power deviation?

The implementation standard for the production of industrial micro coil heater is metal tubular electric heating element JB 2379-2016. There is a clear definition of the deviation range between the rated power and the actual power of the coil heaters: under the condition of sufficient heat, the rated power and actual power of the hot runner coil heater The deviation shall not exceed the range specified below:

1. For electric coil heater with rated power ≤100W, the power tolerance range is ±10%;

2. For coil heater with rated power >100W, the power tolerance range is +5% to -10% or 10W, whichever is greater.

It is recommended that customers choose regular manufacturers to purchase hot runner coil heater. Many coil heaters on the market now have a large range of rated power deviations. The power is larger than the environmental requirements. The filling materials and the material of the tube shells allow the working temperature to easily cause safety hazards, resulting in cracking and bursting. phenomenon.

How do electric coil heater calculate power and current?

According to Ohm's law:

1, U / I = R, that is, voltage (volts) / current (A) = resistance (Europe)

2, P = UI, that is, power (Watt) = voltage (volts) * current (A)

3, P = U * U / R, that is, power (watts) = voltage (volts) * voltage (volts) / resistance (Europe)

Second, which ones can be measured?

It is generally known that any two of these items can be calculated by formulas. The resistance and current can be measured by a multimeter. Generally, the rated resistance is measured in a cold state, that is, when the power is not used. The thermal resistance is about 5% higher than the cold state.