Knowledge base

Wiring guides, application cases and product news

35 technical articles on temperature controller wiring, SSR sizing, SCR regulator setup, sensor selection and real machine applications.

Technical Guides · 2026-08-27

How to Wire CH102, CH402, CH702 and CH902 PID Temperature Controllers

A practical wiring guide for CH102, CH402, CH702 and CH902 PID temperature controllers, covering power, AC contactor and SSR control, thermocouple and Pt100 sensors, alarms and commissioning.

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Technical Guides · 2026-08-25

TEL96-9001 Temperature Controller Wiring Guide: Direct Heater and AC Contactor Methods

Terminal-by-terminal wiring for the TEL96-9001 ON/OFF temperature controller: K-type thermocouple connection, direct heater switching up to 1500 W, AC contactor control, 220 VAC to 380 VAC supply change, commissioning checklist and troubleshooting.

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Technical Guides · 2026-08-24

How to Choose a Threaded Temperature Sensor: K, E Thermocouple or Pt100 RTD

A selection and installation guide for M6 / M8 threaded temperature sensor probes: how thermocouples and RTDs differ, which element to specify, how thread size and mounting affect the reading, lead length and shielding, terminal polarity and the controller settings to check at commissioning.

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Technical Guides · 2026-08-23

How to Wire REX-C100, REX-C700 and REX-C400/C900 Temperature Controllers

English wiring diagrams for REX-series temperature controllers, including relay, AC contactor, SSR, K-type thermocouple and 3-wire PT100 connections.

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Technical Guides · 2026-08-23

How to Wire TCN4S and TCN4H/L/M Temperature Controllers: Contactor and SSR Methods

Terminal-by-terminal wiring instructions for the TCN4S-14RV and TCN4H/L/M-14RV PID temperature controllers, covering AC contactor (relay output) wiring, BSSR-25DA solid-state relay wiring, K type and PT100/Cu50 sensor connections, SSR heat sink sizing and a commissioning checklist.

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Product Updates · 2026-03-24

TC5-S PID Temperature Controller: Model Code, Terminals, Outputs and Commissioning

A working reference for the TC5-S 1/16 DIN digital PID temperature controller: how to read the model code, the electrical specification, terminal-by-terminal wiring, how to choose between relay, SSR drive and 4-20mA output, and the checks to run before the first heat-up.

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Technical Guides · 2026-03-02

TC3-401T Celsius and Fahrenheit Setup Guide

Step-by-step guide to switching the Strong Electric TC3-401T temperature and time controller between Celsius and Fahrenheit: unlock the LCK parameter, set the CF unit code, confirm the change and re-check setpoint and alarm values. Includes a setup video and troubleshooting FAQ.

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Technical Guides · 2025-08-28

BSTY Three-Phase SCR AC Power Regulator: Signal Options, Sizing and Commissioning

Electrical data, control signal selection, current sizing for three-phase resistive loads, soft-start and thermal protection settings, wiring practice and commissioning steps for the BSTY three-phase SCR power regulator.

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Technical Guides · 2025-07-17

TCR-M Potentiometer Calibration and Output Test Guide

Step-by-step guide to calibrating the TCR-M temperature controller with a potentiometer — simulate the sensor input, set PV and SV, and verify the relay output switches at the setpoint.

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Technical Guides · 2025-07-03

Top 9 Industrial Temperature Controllers from Beijing Strong Electric

A selection guide to the nine current Strong Electric industrial temperature controllers, covering panel size, input type, output options and typical heating applications.

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FAQ · 2025-06-17

TCN4 PT100 Decimal Display and Hysteresis Setting Guide

Step-by-step guide to enabling PT100 1-digit decimal display and setting hysteresis (HYS) on the TCN4 temperature controller for stable ON/OFF control.

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Technical Guides · 2025-06-07

How to Change Deviation Alarm to Absolute Value Alarm on TC5 Temperature Controller

Learn how to switch the TC5 temperature controller from deviation alarm to absolute high alarm mode. This guide includes step-by-step instructions and a video demo.

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Technical Guides · 2025-05-31

TC5 Setup Guide: PT100 Input, Decimal Display and 45–50°C Range Control

Setup guide for the TC5 series temperature controller, covering PT100 input selection, decimal display resolution and 45–50°C hysteresis range control.

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Technical Guides · 2025-05-27

How to Switch TK6D Temperature Controller to SSR Output Mode

This blog explains how to set the TK6D temperature controller to SSR output mode. Includes video demo, step-by-step guide, and highlights of this DIN rail-mounted PID unit.

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Application Cases · 2025-05-26

TCN4 Temperature Controller Customer Review from Russia

A customer video from Russia featuring the Strong Electric TCN4 temperature controller in a real heating application, with notes on model selection, sensor input and OEM export support.

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FAQ · 2025-05-22

What's the Difference Between Zero-Crossing and Random Turn-On Solid State Relays?

This blog explains the core differences between zero-crossing and random turn-on SSRs, including switching behavior, EMI, and application suitability.

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FAQ · 2025-05-21

TCN4 Controller: How to Set Input Type to PT100 (Video Tutorial)

This blog shows how to configure a TCN4 temperature controller to accept PT100 RTD input. Includes a video tutorial and step-by-step instructions.

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FAQ · 2025-04-24

How to Use the TC3-401T Front Panel for Temperature and Time Control

This blog walks you through the TC3-401T temperature timer controller’s front panel, explaining each function key, dual display mode, and how to adjust temperature and time settings.

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Technical Guides · 2025-04-15

How to Wire REX-C100/C400/C700 Temperature Controllers with Relay and SSR Output

This blog provides a comprehensive guide on wiring REX series temperature controllers, including the C100, C400, and C700 models. It explains both relay and solid-state relay (SSR) output methods, sensor wiring (K-type and PT100), and alarm connections. Diagrams are provided for practical understanding and installation reference.

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Technical Guides · 2025-04-12

SCR Voltage Regulator Circuit Diagram and Wiring Guide

How to read and apply SCR voltage regulator circuit diagrams for single-phase and three-phase four-wire resistive heating, using the current SCR-100 controller and M1DK pulse-triggered power module, including terminal identification, control wiring, fusing and commissioning.

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Technical Guides · 2025-04-11

PID vs ON/OFF Control: Which Temperature Control Method is Right for You?

This article compares PID and ON/OFF temperature control methods for industrial automation. Learn the pros, cons, and application scenarios for selecting the right controller.

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Technical Guides · 2025-04-11

Solid State Relay (SSR) vs. Mechanical Relay: What’s the Difference and When to Use Each

This article compares SSR and mechanical relays by switching speed, lifespan, load compatibility, and usage scenarios—helping you decide which is best for your power control application.

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Product Updates · 2025-04-11

TCN4 Series PID Temperature Controller: Model Codes, Inputs, Outputs and Commissioning

A working reference for engineers specifying or commissioning a TCN4 series digital PID temperature controller: how the four panel sizes differ, which sensor inputs are accepted, when to use the relay output with a contactor versus the SSR drive output, and the checks to run before first heat-up.

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Application Cases · 2025-04-11

TCR Series Controller Applied in Heating Tunnel Dryer for Food Packaging

TCR Series temperature controller was applied in a food packaging tunnel dryer, providing consistent ON/OFF heating control. The result: better sealing and fewer overheating defects.

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Technical Guides · 2025-04-06

SCR vs TRIAC: Differences, Circuit Topology and How to Choose

An engineering reference comparing SCRs and TRIACs for AC power control: conduction direction, circuit topology, triggering and commutation behavior, control methods, load compatibility, thermal and protection design, and a practical selection checklist.

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Product Updates · 2025-04-04

How to Choose a Solid State Relay: Input Type, Current Sizing, Switching Mode and Cooling

A practical selection reference for solid state relays: which input and output combination to specify, how to size load current and voltage including cold inrush, when to use zero-crossing versus random turn-on, and how to calculate the heat sink so the relay does not fail short-circuit.

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Product Updates · 2025-03-28

BDTY Single-Phase SCR Voltage Regulator: Signal Options, Sizing and Installation

Control signal options, current sizing from 10A to 400A, wiring and isolation practice, thermal design and commissioning steps for the BDTY single-phase SCR power regulator used on resistive heating loads.

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Product Updates · 2024-03-18

M1DK-80A Pulse-Triggered SCR Power Module: Trigger Wiring, Sizing and Commissioning

How the M1DK / SSR-DV pulse-triggered SCR module differs from a standard DC-input SSR, how the G and T1 trigger terminals are wired to a ZKG, ZKC or ZKD controller, and how to size, cool and fault-find the module.

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Product Updates · 2024-03-18

SSR-25DA Solid State Relay: Electrical Data, Sizing, Heat Sink and Wiring

Electrical data, current sizing rules, heat sink and derating guidance, wiring practice and a fault-finding table for the SSR-25DA DC-controlled solid state relay used on industrial heating loads.

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Product Updates · 2024-03-18

TC4-W PID Temperature Controller: Panel Data, Outputs and Retrofit Notes

Panel and cutout dimensions, electrical specification, output selection and retrofit checks for the TC4-W horizontal PID temperature controller within the TC4 family.

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Product Updates · 2024-02-06

SCR-100 / ZKG-2000 Heating Power Controller: Wiring, Setup and Fault Finding

What the SCR-100 / ZKG-2000 actually controls, how the T1, G, N and L terminals connect to an external pulse-triggered SCR module, panel and cutout data, and how to commission and fault-find the pair.

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Product Updates · 2024-02-05

REX-C Series PID Temperature Controller: Input Codes, Output Codes and Panel Data

A specification and commissioning reference for the REX-C family: how the input and output code letters work, panel and cutout dimensions for each model, PID setting ranges and the checks to run before first heat-up.

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Product Updates · 2024-02-04

CH Series PID Temperature Controller: Sizes, Input and Output Codes, Alarm Modes

Panel dimensions, cutouts, input and output option codes, alarm mode selection and commissioning notes for the CH (REX-CH) short-body PID temperature controller family.

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Product Updates · 2024-02-03

TC4 Series PID Temperature Controller: Model Code Breakdown, Outputs and RS485 Setup

How to read a TC4 model code, which sensor inputs and control outputs are available across TC4S/H/W/M/L, what the RS485 Modbus option adds, and the checks to run at commissioning.

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Product Updates · 2024-02-02

SCR3L Three-Phase SCR Voltage Regulator: Signal Wiring, Sizing and Installation

Electrical data, control signal options, four-wire 380VAC connection rules, current sizing, mounting dimensions and commissioning steps for the SCR3L three-phase intelligent SCR voltage regulator.

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