Temperature Controllers
SCR-100 / ZKG-2000 Blow Molding Machine Heating Controller
The SCR-100 / ZKG-2000 is a panel-mount heating controller for blow molding and thermoforming machines — not a standard PID temperature controller. It does not measure temperature: the operator sets the heating power directly, the controller regulates that power and outputs the thyristor trigger signal, and an external M1DK or SSR-DV SCR power module carries the actual 220VAC load current. A microprocessor-based phase-angle control circuit with deep voltage negative feedback reduces the influence of supply-voltage fluctuations and provides stable, linear 0–220VAC adjustment. The dual LED display gives clear remote visibility of the measured and set voltages. Touch-button operation, compact 48 × 48 mm panel construction and strong interference resistance make it suitable for blow molding, vacuum forming, mold heating, packaging machinery and other resistance-heating equipment.
- Microprocessor-based phase-angle control
- Continuous 0–220 VAC voltage adjustment
- Deep voltage-negative-feedback stabilization
- Clear digital display without parallax
- Compact and lightweight panel-mount design
- High accuracy and strong vibration resistance
- Reliable touch-button operation
- Strong resistance to electrical interference
- Stock / sample dispatch
- 3–5 working days
- Warranty
- 12 months
- OEM
- Supported
- Shipping
- Worldwide export
Technical specifications
| Model | SCR-100 / ZKG-2000 |
|---|---|
| Product Type | Digital SCR Voltage Regulator |
| External Dimensions | 48 × 48 mm |
| Panel Cutout | 45 × 45 mm |
| Installation | Panel Mount |
| Working Voltage | 220 VAC ±15%, 50/60 Hz |
| Power Consumption | Approx. 3 VA |
| Display Resolution | 1 V |
| Display Range | 0–250 V |
| Voltage Setting Range | 0–220 VAC |
| Main Output Type | Stabilized Voltage Output |
| Trigger Method | Phase-Angle Control |
| Output Pulse Amplitude | ≥3 V |
| Output Pulse Width | ≥50 μs at 20 Ω load |
| Maximum Conduction Angle | ≥150° |
| Operating Temperature | 0°C to 50°C |
| Relative Humidity | ≤85% RH, non-corrosive atmosphere |
| Gross Weight | 150 g |
| Suitable Loads | Constant-resistance electric heating elements |
| Unsuitable Loads | IR lamps, UV lamps and inductive loads |
Terminal Connections & Wiring Diagram
Operation
- Press the P button to enter standby mode. The thyristor output stops while the controller remains powered and displays OFF or P.
- During normal operation, press ▲ or ▼ to adjust the voltage setpoint.
- The displayed voltage represents the voltage applied to the load.
Installation and Safety Notes
- Connect the output, feedback, power supply, ground and heater according to the wiring diagram.
- The load phase must match the regulator power-supply phase.
- Select a thyristor voltage rating at least 2.5 times the supply voltage and a current rating at least 1.5 times the actual load current.
- Install a suitably sized heat sink and provide adequate ventilation so the thyristor temperature remains below 80°C.
- Install the series fuse on the live-line input.
- Keep trigger-signal wires short and separated from other wiring.
- If an ammeter is used, connect it in series with the thyristor anode.
- Do not use half-wave power control.
- Do not drive induction furnaces, step-down transformers or other inductive loads.
- If the thyristor cannot conduct fully or the output fluctuates severely, interchange the two trigger-signal wires.
- If the heat sink is electrically live, provide adequate protection against electric shock and short circuits.
Applications
- Blow molding machines
- Vacuum forming machines
- Mold heating
- Packaging machinery
- Resistance-heating equipment
Related guides
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.
Read guide Technical Guides · 2025-04-12SCR 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.
Read guide Product Updates · 2024-03-18M1DK-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.
Read guideMatched Power Module
M1DK / SSR-DV Pulse-Triggered SCR Power Module
M1DK / SSR-DV Pulse-Triggered SCR Power Module is a single-phase solid state power module driven by the pulse trigger signal of an SCR heating controller. It uses G and T1 trigger terminals, supports 250VAC single-phase resistive loads and is available from 25A to 100A for ovens, packaging machines, blow molding machines, plastic machinery and industrial heating control systems. Also known in some markets as BSSR-DV.
View detailsHow the pair works together
SCR-100 / ZKG-2000 Controller → Trigger Signal → M1DK / SSR-DV Power Module → Blow Molding Machine Heater
The controller sets and displays the heating power and outputs the trigger signal; the external power module carries the heating load. Confirm terminal marking and wiring for your exact units before installation.
Related models
All Temperature Controllers
REX-C100/C400/C700/C900 Digital PID Temperature Controller
REX Series Digital PID Temperature Controller is a classic and reliable industrial temperature control instrument designed for heating, cooling, and automatic temperature regulation applications. It supports PID control, relay or SSR output, multiple sensor inputs such as PT100, Cu50, K, S, E and J, and dual LED display for PV and SV values.
View details
TC4 Series PID Temperature Controller
TC4 Series PID Temperature Controller is a digital temperature control instrument designed for accurate temperature measurement and stable process control. It supports multiple panel sizes, thermocouple input, RTD input, relay output, SSR drive output, 4–20mA control output, optional 4–20mA transmission output and RS485 Modbus communication.
View details
TC5 Series White LED Display PID Temperature Controller
TC5 Series PID Temperature Controller is a high-performance digital temperature controller with a clear white LED display, 100ms high-speed sampling period and ±0.5% display accuracy. It supports multiple input types, including thermocouple, RTD, linear current and linear voltage signals, making it suitable for a wide range of industrial temperature control applications.
View details
TEL96-9001 Oven Temperature Controller
TEL96-9001 Digital Temperature Controller is designed for oven, baking equipment, sealing machines, vacuum packaging machines, heating tubes, and general industrial temperature control applications. It features digital temperature display, rotary knob setting, relay output, K-type thermocouple input, and position control with hysteresis. With simple operation and reliable performance, it is suitable for AC220V and AC380V heating equipment control systems.
View detailsNeed help selecting the right model?
Send us the load, voltage, sensor type and output signal. We reply with the matching model, wiring notes and an OEM quotation.