The Selec PID330-U is a high-performance universal PID controller designed for advanced temperature and process control applications. With universal input/output capability, adaptive–auto–self tune PID, heat–cool control, 128-step profile programming, retransmission output, and optional RS485 Modbus communication, it is suitable for demanding industrial environments requiring accuracy, repeatability, and reliability.

Key Features 

• 4+4-digit dual LED display (Upper: 15.3 mm White, Lower: 8 mm Green)

• Universal Input / Universal Output

• Adaptive, Auto, Self-Tune PID / ON-OFF control

• Heat–Cool PID with separate bands & cycle times

• 128-Step Profile Controller (8 profiles × 16 steps)

• Retransmission analog output: 0–5/10 V or 0/4–20 mA

• SSR pulse output (15 VDC)

• 3 Relay outputs (7A, 7A, 10A)

• 24V DC sensor supply built-in

• Capacitive touch keypad, IP65 front

• RS485 MODBUS RTU (optional)

• Short depth housing (only 74.5 mm)

• EMI/EMC Compliant to IEC 61326-1, CISPR-11/22
  

Applications

• Plastic processing (extruders, injection moulding)

• Industrial furnaces, ovens, kilns

• Packaging machines (sealing, shrink tunnels)

• HVAC & heating loops

• Scientific chambers & incubators

• Process control for temperature/pressure with analog scaling

• Food & chemical processing lines

What’s in the Box?

• Selec PID330-U controller

• Mounting clamps

• User manual

• Warranty card

FAQs

Q1. Is PID330-U a universal input controller?
Yes—it supports TC, RTD, mV, V, and mA inputs.

Q2. Does it have RS485 Modbus?
Yes—model PID330-U-C-1 includes RS485 MODBUS RTU.

Q3. How many relay outputs are available?
Up to 3 relays (7A + 7A + 10A).

Q4. Does it support profile programming?
Yes—128 steps (8 profiles × 16 steps).

Q5. Is IP65 front protection available?
Yes—IP65 front bezel with capacitive touch keypad.

Q6. Does it support heat–cool PID?
Yes—with separate P-bands and cycle times.