Description
Dwyer SERIES 4B 1/4 DIN TEMPERATURE/PROCESS CONTROLLER
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.
Features:
- 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
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
Specifications:
- 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 or 24 VDC (depending on model)
- 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
Models:
- 4B-23 1/4 DIN temperature/process controller, (1) voltage pulse output and (1) relay output.
- 4B-23-LV 1/4 DIN temperature/process controller, (1) voltage pulse output and (1) relay output, low voltage
- 4B-33 1/4 DIN temperature/process controller, (1) relay output and (1) relay output.
- 4B-33-LV 1/4 DIN temperature/process controller, (2) relay outputs, low voltage
- 4B-53 1/4 DIN temperature/process controller, (1) current output and (1) relay output.
- 4B-53-LV 1/4 DIN temperature/process controller, (1) current output and (1) relay output, low voltage
- 4B-63 1/4 DIN temperature/process controller, (1) linear voltage output and (1) relay output.
- 4B-63-LV 1/4 DIN temperature/process controller, (1) linear voltage output and (1) relay output, low voltage
