Selec PID500 PID Temperature Controller
Selec PID500 Temperature Controller – Universal Input, PID/ON-OFF, Dual Display (48×48 mm)
Advanced universal PID controller with TC/RTD/analog inputs, 4+4 digit dual LED display, PID/ON-OFF control, heat–cool mode, ramp–soak function, soft start, alarm outputs, RS485 Modbus (optional), and retransmission analog output.
The Selec PID500 is a universal industrial PID controller designed for precise temperature and process control. It supports TC, RTD, mA and voltage analog inputs, offers dual LED display, selectable PID/ON-OFF control, heat–cool operation, ramp–soak programming, soft start, RS485 Modbus connectivity; and analog retransmission options—making it suitable for furnaces, heaters, packaging machinery, ovens, plastics, and industrial automation.
Key Features
4+4-digit dual LED display (Upper: 10 mm, Lower: 7 mm)
Universal inputs:
Thermocouples (J, K, T, R, S, C, E, B, N, L, U, W, Platinel II)
RTD PT100
Analog: –5 to 56 mV, 0–10 V, 0–20 mA
PID / ON-OFF control selectable
Heat–cool PID output with independent settings
Ramp–soak programming:
Ramp rate: 1–9999°/hr
Soak time: 0–1440 min
Soft start: 0–999 min
Alarm modes: Deviation high/low, Absolute high/low, Band, Sensor break
RS485 Modbus RTU (optional)
Retransmission analog output: 0–10V or 4–20 mA
Output options: Relay, SSR, Analog mA/V
Input filter (FTC): 1–99 sec
Sampling time: 200 ms
Decimal point selectable for analog inputs: 1 / 0.1 / 0.01 / 0.001
Technical Specifications
Display Specifications
| Parameter | Value |
|---|---|
| Display Type | 4+4 digit 7-segment dual LED |
| Upper Display Height | 10 mm |
| Lower Display Height | 7 mm |
| Indications | Main Output, Alarm outputs, Manual Mode, Tune |
Input Specifications
| Parameter | Value |
|---|---|
| TC Inputs | J, K, T, R, S, C, E, B, N, L, U, W, Platinel II |
| RTD Input | PT100 |
| Analog Inputs | –5 to 56 mV, 0–10V, 0–20 mA |
| Resolution | 1° or 0.1° (TC/RTD); up to 0.001 for analog inputs |
| Accuracy | |
| • TC J/K/T: 0.25% FS ±1°C | |
| • TC R/S: 0.5% FS ±2°C | |
| • RTD: 0.1% FS ±1°C | |
| • Analog: ±0.5%, ±1 digit | |
| Input Filter (FTC) | 1–99 sec |
| Sampling Time | 200 ms |
| Unit | °C / °F selectable |
Control Specifications
| Function | Range |
|---|---|
| Control Action | PID / ON-OFF |
| Proportional Band (P) | 0.0–400.0°C |
| Integral Time (I) | 0–3600 sec |
| Derivative Time (D) | 0–200 sec |
| Cycle Time | 0.1–100 sec |
| Hysteresis | 0.1–99.9°C |
| Manual Reset | –19.9 to +19.9°C |
Heat–Cool Mode
| Function | Range |
|---|---|
| Heat–Cool Action | PID / ON-OFF |
| Proportional Band – Cool | 0–400°C |
| Cycle Time – Cool | 0.1–100 sec |
| Dead Band | Adjustable from SP Low to SP High |
Outputs
| Output Type | Specification |
|---|---|
| Relay | SPST 5A @ 230VAC/30VDC |
| SSR Drive | 12 VDC, 20 mA |
| Analog | 0–10 VDC (10 kΩ load), 4–20 mA (500 Ω max) |
Retransmission Output
| Parameter | Value |
|---|---|
| Analog Output | 4–20 mA / 0–10 V |
| Update Rate | 100 ms |
Communication
| Parameter | Value |
|---|---|
| Interface | RS485 |
| Protocol | Modbus RTU |
| Baud Rates | 300–9600 bps |
| Max Nodes | 32 |
| Distance | 500 m |
Environmental Specifications
| Parameter | Value |
|---|---|
| Operating Temp | 0–50°C |
| Storage Temp | –20 to 75°C |
| Humidity | 85% RH non-condensing |
| Power Supply | 90–270V AC/DC |
| Power Consumption | 5 VA max |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Panel Size | 48×48 mm |
| Panel Cutout | 46×46 mm |
| Depth | 100 mm |
| Weight | 105 g |
Applications
Furnaces, ovens, kilns
Packaging & sealing machines
Extruders, injection moulding, plastics
Heat treatment
Industrial heating/cooling loops
Food & beverage temperature control
Process automation
What’s in the Box?
PID500 Controller
Mounting clamps
User manual
Warranty card
FAQs
Q1. Does PID500 support analog inputs (0–10V or 4–20mA)?
Yes—fully universal input, including voltage/mA signals.
Q2. Can it work as both a PID and an ON-OFF controller?
Yes—control mode is selectable.
Q3. Is RS485 Modbus available?
Yes—available in model variants (PID500-x-x-04).
Q4. What output options are available?
Relay, SSR, 0–10V, or 4–20mA depending on the model.
Q5. Is ramp–soak programming supported?
Yes—full ramp rate, soak timer, and soft start.
Q6. Does it support heat–cool control?
Yes—with independent P-band and cycle settings.