Watlow Series L Temperature Limiting Controller

Configuration: LF series fixed set point of 200 ° C, K-type thermocouple (range 0-300 ° C), potting module installation, output connected in series to the heating tube contactor coil circuit, triggering to cut off the coil power supply.

Advantages: No user interface, preventing unauthorized modifications; The sealing structure is suitable for high temperature environments near the oven and has IP65 protection against dust.

2. Food baking oven protection (LV series)

Requirement: The baking oven needs to adjust the temperature frequently (such as baking bread at 180 ° C and cake at 160 ° C), and the maximum temperature should be limited to 220 ° C to prevent the batter from burning.

Configuration: LV series adjustable set point (range 100-220 ° C), J-type thermocouple, 1/8 DIN panel installation (IP65 protection), rotary encoder to adjust set point, output triggers alarm light and contactor trip.

Advantages: Quick on-site adjustment of set points, with anti misoperation design; IP65 protection is suitable for cleaning and spraying in food processing environments.

3. Heating protection for coating production line (LS series)

Requirement: If the heating tube in the coating and drying section loses control, it may cause a fire and requires high safety level protection. The set point is 120 ° C, dual sensor redundancy, and only power-off reset.

Configuration: LS series double K-type thermocouple, set point 120 ° C, hysteresis loop 5 ° C, DIN rail installation, output directly cuts off the power supply of the heating tube, triggering protection when the temperature difference between the two sensors is greater than 20 ° C.

Advantages: Dual sensor redundancy+power-off reset, in compliance with safety standards; Form A output is only used to cut off high-risk loads and has high reliability.