Thermocouple

I. Safety Preparations Before Testing Completely disconnect the 220V high-voltage power supply circuit to the hot runner heater, leaving only the low-voltage temperature measurement circuit of the sen

I. Minor Leakage (Insulation dampness only, no structural damage) Total Repair Time: 6-8 hours Core Time Components: Heater disassembly + 4-6 hours of drying in an oven to remove moisture + cooling an

I. Total Production Resumption Time Minor Leakage Repair: 2.5~3 hours Moderate Leakage Repair: 3~3.5 hours Severe Leakage (Replacing the Heater): 3.5~4 hours This timeframe includes the complete proce

I. Preliminary Appearance and Phenomenon Assessment Abnormal Phenomenon Check: Upon heater startup, the thermostat frequently reports overcurrent, and the leakage protection circuit breaker trips rand

I. Preparatory Work (Complete 10 minutes in advance, without downtime) Prepare a spare original high-temperature resistant heating coil that perfectly matches the power, size, and interface of the fau

I. Immediate Emergency Risk Control (0-5 minutes) Immediately press the emergency stop button for the hot runner system to cut off the 220V main power supply to the heaters, preventing the leakage fro

I. Initial Assessment (Quick Troubleshooting Without Disassembly) Electrical Abnormalities: Upon heater startup, the leakage protection circuit breaker trips randomly; the thermostat frequently report

A leaking hot runner heater poses a fatal risk of electric shock. Under certain conditions, it can absolutely lead to death and is by no means a harmless malfunction. I. Core Risk Assessment Basis Hot

I. Emergency Power Cut Off Pre-operation Safety Procedures Operators must wear thickened heat-insulating gloves resistant to 350℃ at all times. Direct contact with the hot runner metal casing or live

I. Core Reasons for Necessary Recalibration Leakage causes sensor signal drift: The high-voltage common-mode voltage during heater leakage may impact the thermocouple signal link, causing a shift in t

I. Total Calibration Time for a Single-Channel Sensor Total Time: 30-45 minutes Core Time Components: 10 minutes for standard thermometer docking and debugging + 15-25 minutes for point-by-point compa

I. Preparation Before Calibration Tool Confirmation: Prepare a contact-type standard thermometer with an accuracy of ±0.1℃, a 0.01-grade digital multimeter, a digital vernier caliper, high-temp