Series 4B 1/4 DIN Temperature/Process Controller

1/4 DIN Temperature/Process Controller
Dual Control Output, RS-485 Communication, Auto-Tuning

Dual Control Output, RS-485 Communication, Auto-Tuning

The Series 4B 1/4 DIN Temperature/Process Controller is designed to accept thermocouple, RTD, current or voltage input and provide dual outputs for control. Available outputs include relay/relay, voltage pulse/relay, current/relay, or linear voltage/relay.

The units can be programmed for ON/OFF, PID, auto-tuning, or manual tuning control methods. The PID control is supported by 64 ramp/soak actions. The Series 4B also includes two additional alarm outputs. The second relay output can be reconfigured as a third alarm output. The alarm type can be selected from 13 different preprogrammed alarm functions. The controller features dual LED displays for local indication of process and setpoint values.

Product Applications

  • Control temperature for boilers, damper control based on temperature or pressure.
  • Hot plates/melt pots.
  • Packaging equipment.
  • Environmental chambers.
  • Medical equipment.
  • Food service equipment.
More Information
Inputs: Thermocouple, RTD, DC voltages or DC current.
Display: Two 4-digit, 7 segment. PV: 3/4" H (19 mm) red; SV: 1/2" H (12.7 mm) green.
Accuracy: ±0.25% span, ±1 least significant digit.
Supply Voltage: 100 to 240 VAC, 50/60 Hz.
Power Consumption: 5 VA max.
Operating Temperature: 32 to 122°F (0 to 50°C).
Memory Backup: Nonvolatile memory.
Control Output Ratings: Relay: SPDT, 5 A @ 250 VAC resistive; Voltage Pulse: 14 V, 10% to -20% (max 40 mA); Current: 4 to 20 mA; Linear Voltage: 0-10 V.
Communication: RS-485 Modbus® A-5-11/RTU communication protocol.
Weight: 15 oz (425 g).
Agency Approvals: CE, RoHS, cUL, UL.
Front Panel Rating: IP56.
  • Universal input accepts process transmitters, RTD’s or thermocouple signals
  • On/off, PID, or manual output control
  • RS-485 standard on all models
  • Stage control program for up to 64 ramp/soak actions