The Honeywell DR45AT-1100-00-000-0-500000-0 is a 12-inch digital circular chart recorder from the DR4500A Truline series that captures and prints multi-channel process data on thermal paper. This microprocessor-based instrument generates its own chart grid, scales, timestamps, and trend lines without requiring pre-printed media, delivering ±0.05% full scale accuracy across industrial monitoring applications.
## Technical Specifications
**Recording & Display**
• Chart size: 12 inches
• Accuracy: ±0.05% full scale
• One-pen stylus printhead for analog traces and alphanumeric data
• Real-time clock with date/time printing (hour, minutes, date, year)
• Automatic compensation for chart width variations due to ambient humidity changes
**Input Channels**
• Up to four input channels
• Supported types: thermocouple (B, E, J, K, R, S, T, G, C, M, N), RTD (Pt100, Pt500), mV, 0–5 VDC, 4–20 mA, Radimatic/Radiamatic
• User-configurable input types and ranges
• Sensor break protection (upscale or downscale) available for many configurations
• Sampling rates: 3 times per second (1–2 inputs) or 3 times in 2 seconds (3–4 inputs)
**Control & Output**
• Up to two versatile PID digital controllers
• Control modes: On-Off, PID-A, PID-B, PD with Manual Reset, or 3 Position Step
• Current proportional output: 4–20 mA (0–1000 ohm load)
• Two optional SPST electromechanical relays: 1 A @ 120 VAC, 0.5 A @ 240 VAC (resistive load)
**Digital I/O & Totalization**
• Two digital inputs accepting dry contact closures or isolated solid-state contacts
• Remote control capability: automatic/manual switching, controller action reversal, autotune initiation
• One or two totalizers (DR45AT model); eight-digit display with multiplier; 14-digit chart printout
• Grand total printing at each major timeline
**Math & Power**
• Eight math algorithms available, including summation (A + B + C)
• Power supply: 102–264 VAC (110/120/220/230/240 VAC nominal)
## Key Features
• Eliminates pre-printed chart requirements
• Logs operator changes in real-time
• Prints configurable alphanumeric data, time, and trend lines
• Versatile sensor input compatibility with user-selectable ranges
• Dual PID control with multiple action modes
## Typical Applications
Food processing, pharmaceuticals, heat treatment, environmental testing, manufactured goods, water and wastewater treatment.
## Compatibility & Integration
Supports thermocouple and RTD sensors across industrial temperature ranges. Remote digital inputs enable integration with facility automation and control systems.
