Key facts
- Brand
- Honeywell
- Model
- UDC2300
- Category
- Automation control Equipment
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2026-10-03
Start here

Honeywell UDC2300 Universal Digital Controller User Manual
This manual describes the features, options, and physical description of the Honeywell UDC2300 Universal Digital Controller, a 1/4 DIN sized controller for temperature and variable monitoring in applications such as environmental chambers, furnaces, and packaging machinery. It covers standard functions like Accutune II™ tuning, fuzzy‑logic overshoot suppression, dual setpoints, and optional modules such as auxiliary output, digital input, and RS‑485/Modbus communications.
The document also details configuration procedures, operator interface keys, alarm settings, output types (current, relay, solid‑state, open‑collector), and technical specifications including input accuracy, resolution, sampling rate, and power requirements. Safety and compliance information such as CE marking, IP65 front panel rating, and EMC classifications are provided for installation and maintenance.
Honeywell UDC2300 specifications
| Input Accuracy | ±0.25% of full scale typical |
|---|---|
| Resolution | 15‑bit typical |
| Sampling Rate | Six times per second |
| Temperature Stability | ±0.025% of full scale span per °C typical |
| Output Current Range | 0 to 21 mA |
| Output Resolution | 11 bits for 0‑21 mA |
| Power Supply Voltage | 90‑264 Vac, 50/60 Hz |
| Front Panel IP Rating | IP65 |
Source: Honeywell UDC2300 Universal Digital Controller User Manual
All Honeywell UDC2300 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What communication options are available for the UDC2300?
The controller can be equipped with an optional RS‑422/485 ASCII or Modbus RTU communications interface for linking to a host computer or PLC.
From: Honeywell UDC2300 Universal Digital Controller User Manual
What is the input accuracy of the controller?
The typical input accuracy is ±0.25 % of full scale.
From: Honeywell UDC2300 Universal Digital Controller User Manual
