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Documents: 4B-23-LV

4B (Chinese)4B Quick Start Snubber Application Note 4B (English)Series 4B Catalog Page More Info

4B-23-LV | 1/4 DIN temperature/process controller | (1) voltage pulse output and (1) relay output | low voltage | Dwyer

1/4 DIN temperature/process controller, (1) voltage pulse output and (1) relay output, low voltage

Brand: DwyerSKU: 4B-23-LV

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1/4 DIN temperature/process controller | (1) voltage pulse output and (1) relay output | low voltage

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.

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

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

Specifications

Series: 4B 1/4 DIN Temperature/Process Controller
Category/Type: Process Control
Type: Process Controllers
Series: 4B 1/4 DIN Temperature/Process Controller
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.