The Honeywell DR4300 is a microprocessor-based circular chart recorder engineered for continuous process variable monitoring and control. It accepts universal inputs across thermocouple, RTD, and analog signal ranges, delivering measurement accuracy from ±0.10% to ±0.50% of span depending on configuration. The 10-inch (250 mm) circular chart platform supports single or dual-pen operation with field-adjustable speed and range settings, backed by over 200 preprinted chart options and disposable fiber-tip ink cartridges.
## Technical Specifications
• Chart diameter: 10 inches (260 mm)
• Panel cutout: 322.5 × 322.5 mm
• Input types: 10 thermocouple types (J, K, T, R, S, B, E, W5W26, Ni Ni Moly), 100 ohm DIN RTD, linear inputs 4–20 mA / 0–20 mA / 0–20 mV / 0–50 mV / 0–100 mV / 0–200 mV / 0–1 VDC / 0–5 VDC / 1–5 VDC / 0–10 VDC
• Accuracy: ±0.10% to ±0.50% of span (varies by model configuration)
• Pen configuration: Single or dual
• Power supply: 100–240 Vac or 20–27 Vdc universal input
• Optional transmitter power output: 24 Vdc (supports up to two transmitters)
## Key Features
• Vacuum Fluorescent Display (VFD) for process variable or setpoint indication
• Dedicated configuration keypad with English language prompts
• Control algorithms: on-off, time proportioning, duplex time proportioning, PID, PD with manual reset, fuzzy logic, and manual reset high limit
• FM-approved limit alarm capability (high/low, manual reset)
• Output options: SPDT relays, solid state relay outputs, open collector outputs, 4–20 mA retransmission
• Alarm outputs: up to two per pen
• Optional six-digit totalizer per input for flow measurement applications
• Optional timer function
• RS485 Modbus RTU communication interface
• 2 digital inputs per pen for setpoint or output switching control
• NEMA 3 or NEMA 4 front face protection
## Typical Applications
Data logging, process monitoring, temperature control, pressure recording, and flow totalization in industrial environments requiring continuous chart documentation and field-configurable control response.
## Compatibility & Integration
Accepts standard thermocouple and RTD probes. Supports up to two optional external controllers. Retransmission of 4–20 mA input signals available. Modbus RTU enables integration with supervisory systems and industrial networks.
