Description

Yokogawa UM330‑00 Digital Temperature / Process Controller

Technical Specifications

• Part Number: UM330‑00
• Brand: Yokogawa (Japan)
• Warranty: One Year
• Type: 1/8‑DIN panel‑mount multi‑loop digital process controller
• Input: Universal analog input; thermocouple (B, E, J, K, R, S, T, N etc), RTD Pt100, DC voltage / DC current (4‑20 mA, 0‑10 V)
• Control Output: Relay contact output; optional voltage pulse for SSR drive; 4‑20 mA analog output
• Control Mode: PID, ON/OFF, manual mode; auto‑tuning PID function built‑in
• Alarm: 2 sets independent alarm functions (high / low / deviation); relay alarm contacts
• Communication: RS485 Modbus‑RTU for host PLC / DCS connection
• Power Supply: 100‑240 VAC universal AC power 50/60 Hz
• Operating Temperature: 0 °C ~ +50 °C panel‑mount; storage ‑20 °C ~ +60 °C
• Panel Cut‑out: 92 × 45 mm (1/8‑DIN)
• Display: Dual 4‑digit LED display; process‑value / set‑value simultaneous view; front‑panel operation keys
• Accuracy: Thermocouple ±0.2 % FS; RTD ±0.15 % FS; analog input ±0.15 % FS
• Protection Class: IP65 front panel; rear terminal area IP20
• Dimensions / Weight: 96 mm × 48 mm × 100 mm; approx 0.32 kg

Product Overview

The UM330‑00 is Yokogawa UM330 series compact panel‑mount PID controller. It is widely used for temperature, pressure and flow closed‑loop regulation for furnaces, ovens, test‑equipment and small‑scale process loops. Universal input supports multiple thermocouple, RTD and standard industry analog signals. Auto‑tuning function simplifies PID parameter setup. RS485 Modbus‑RTU allows remote set‑point modification and process‑value reading from upper‑level DCS or PLC system. Two alarm relays provide hardware limit‑alarm interlock signals.

This controller addresses compact local‑regulation challenges: multi‑signal universal input, auto‑PID tuning, front‑panel IP65 for dust‑resistant panel installation, drop‑in spare‑part compatibility for legacy UM330‑series retrofit‑maintenance projects. Process‑automation engineers, plant‑maintenance technicians and retrofit integrators benefit most. Typical applications: heat‑treatment furnaces, packaging machinery, laboratory test‑stands and small‑scale industrial thermal‑control loops.

Key Application Notes

‑Panel‑mount PID controller; cannot operate standalone; requires process sensor input and control actuator (heater, SSR, valve) ‑‑00 suffix defines base hardware version; replacement spare must match full part‑number to match I/O configuration ‑‑Not hot‑swap; AC power supply must disconnect before unit removal ‑‑Original OEM production obsolete; aftermarket surplus/refurbished spare available ‑‑Conformal‑coated PCB variant available for high‑humidity / corrosive cabinet environments ‑‑Commissioning and PID auto‑tuning follow Yokogawa UM330 user manual for sensor‑type selection and alarm‑threshold configuration