TEMPERATURE CONTROLLER
Denki Seigyo Temperature Controller
The Denki Seigyo Temperature Controller offers precision thermal regulation for industrial processes, enabling accurate monitoring and control of heating and cooling systems. With robust hardware, intuitive interface and reliable performance in demanding environments, it ensures optimal temperature management across automation, manufacturing and process‑control applications.
Product Overview
The Denki Seigyo Temperature Controller is a high‑precision industrial controller engineered for accurate thermal management in manufacturing, process automation and HVAC systems. It supports a wide range of sensor inputs (thermocouples, RTDs, voltage/current) and offers advanced control modes (PID, ON/OFF, multi‑setpoint) for integrating in plant‑level temperature control loops.

Electrical & Sensor Specifications
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Power Supply / Rated Voltage: e.g., 100 – 240 V AC, 50/60 Hz (or variant 24 V AC/DC)
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Operating Voltage Range: ~85 % to 110 % of rated voltage
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Power Consumption: e.g., 7 VA (for AC model)
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Sensor Input Types Supported:
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Thermocouples: K, J, T, E, R, S, B, N, etc.
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Platinum Resistance Thermometers: Pt100, JPt100
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Low‐voltage DC inputs: 0–50 mV, 0–1 V
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DC current inputs: 0–20 mA, 4–20 mA
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Input Break Detection: e.g., for thermocouples/RTDs, up‑scale or down‑scale options when input is open or shorted
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Control Outputs:
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Relay Output: SPST (NO) rated 250 V AC, 2 A (resistive)
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Voltage Output: 12 V DC (PNP) for external devices, max load ~21 mA
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Alarm Outputs: Additional SPST (NO) contact rated 250 V AC, 1 A
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Control Modes:
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ON/OFF control
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PID control (auto‑tune)
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Heat / Cool dual mode optionally
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Display / Setting: Digital front‑panel display of process value (PV) and set‑point (SV); keys for configuring parameters
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Communication / Analog Outputs: (If applicable) e.g., 0–5 V or 4–20 mA output representing PV, deviation or manipulated variable
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Sampling Rate / Loop Speed: Example ~0.5 second or faster
Mechanical & Environmental Specifications
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Panel Cut‑out / Mounting: e.g., 48×48 mm DIN panel, depth ~90 mm behind panel, clamp mounting
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Ambient Operating Temperature: –10 °C to +55 °C (no condensation or icing)
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Storage Temperature: –25 °C to +65 °C
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Ambient Humidity: 25% to 85% RH (non‑condensing)
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Altitude: Up to 2,000 m above sea level without derating
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Insulation Resistance: >20 MΩ at 500 V DC between input/power/ground
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Dielectric Strength: e.g., 1,000 V AC for 1 minute between input and ground; 1,500 V AC between power terminals and ground
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Pollution / Installation Category: Category II, Pollution Class 2 (IEC 61010‑1)
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Weight: Approx. e.g., 180 g (depending on variant)
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Housing / Front Panel Protection: e.g., IP65 front (when properly sealed)
Functional Features
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Set‑point Range: e.g., –50.0 °C to +999.9 °C (depending on sensor type)
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Alarm Functions: Up to 2 alarms, each programmable for process/ deviation/ sensor fail
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Control Output Types: On‑off, PID with auto‑tune, dither control, SSR drive output (if applicable)
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Input Break Alarm: Sensor open/short detection and corresponding alarm action
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Self‑diagnostics: Internal fault detection, sensor error, communication error (if applicable)
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Optional Communication: RS‑485 (2‑wire), RS‑422A, with selectable baud‑rates (e.g., 1200–19200 bps) (if model supports it)
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Analogue Output: 0‑10 V or 4‑20 mA representing process value or manipulated output (if selected)
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Memory Backup: Parameter retention in non‑volatile memory, ensures configuration persists after power‑loss
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LED Indicators: Power ON indicator; status indicator (Control, Alarm)
Installation & Maintenance Notes
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Mount the controller in an environment free of excessive vibration, corrosive gases, and large temperature fluctuations.
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Ensure adequate ventilation behind panel cut‑out to avoid heat build‑up.
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Use shielded cables for sensor wiring to minimize electrical noise; keep sensor leads separated from high‑power cables.
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For RTD inputs, maintain recommended lead resistance and wiring methodology (2‑wire, 3‑wire or 4‑wire).
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Tighten terminal screws to manufacturer‑specified torque to assure good contact and avoid heating.
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Periodically inspect: check front filters if present, verify indicator LEDs, inspect wiring for signs of loosening or corrosion, calibrate sensor points if needed.
Typical Applications
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Industrial ovens, kilns, furnaces and heating systems requiring tight temperature control.
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Process manufacturing (plastics, pharmaceuticals, food & beverage) for temperature regulation in production lines.
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HVAC systems where precision thermal regulation is needed, and integration with automation systems is required.
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Any control panel where a reliable and configurable temperature controller is required for instrumentation and control.
