Yokogawa UT2800-1/HB Digital Indicating Controller

Technical Specifications

Model:UT2800-1/HB

Brand:Yokogawa

Input type:Universal input;Thermocouple,RTD,DC voltage,4~20mA DC current

Control algorithm:PID,ON/OFF control,auto-tuning PID,fuzzy control,ladder sequence control

Control output:Relay contact,voltage pulse,4~20mA analog output

Option /HB:Heater burnout detection function

CT input:External current transformer input for heater current monitoring

Auxiliary I/O:Digital input,digital alarm relay output,retransmission analog output

Display:14-segment large dual PV/SV display

Front panel protection:IP65

Communication:Ethernet Modbus TCP,RS485 Modbus RTU,optional PROFIBUS-DP,CC-Link,DeviceNet

Power supply:100~240V AC or 24V AC/DC optional

Power consumption:Max 12VA

Panel cutout:96mm*96mm

Depth:65mm

Operating temperature:0~+50℃

Relative humidity:20~80% non-condensing

Weight:0.42kg

Certification:CE,UL,CSA

System compatibility

Designed for independent single loop process control,can communicate with PLC,HMI and DCS system,widely used in electric furnace,heat treatment oven,environmental test chamber,chemical reactor and thermal process applications where heater burnout monitoring is required.

Function

UT2800-1/HB belongs to Yokogawa UTAdvanced high-performance digital indicating controller.Universal input supports multiple temperature and process sensors,executes high-precision auto-tuning PID control.The /HB suffix adds heater burnout detection function,works with external CT current transformer to monitor heater current,detect heater wire breakage and trigger alarm.Built-in ladder logic realizes simple sequence control without separate PLC.Supports cascade control,feedforward and fuzzy compensation for complex thermal process.Alarm functions for input failure,deviation and heater abnormal status.Data can be uploaded to upper system via communication interface.

Installation

Panel cutout mounting,secured by mounting clips.Connect process sensor,heater CT signal and control output wiring to terminals.Configure sensor type,control range,alarm and heater burnout threshold via front panel keys or PC configuration software.

Interface

‑Universal analog input terminals

‑CT current input terminals for heater burnout detection

‑Control output terminals,alarm relay terminals

‑Digital input terminals

‑Ethernet / RS485 communication port

‑LED indicators for PV,SV,alarm and status

Circuit feature

High precision A/D conversion,hardware watchdog,input break detection,special current sampling circuit for heater monitoring,anti-electromagnetic interference,stable continuous long-time operation.

Feature

UT2800-1/HB is UTAdvanced series controller with heater burnout detection option.Common faults:front panel button wear,input circuit drift,CT signal circuit damage,display aging.Confirm power supply and option code before replacement.

Diagnostic

Sensor open/short,overrange,heater burnout detected,control output abnormal or hardware fault triggers alarm and error code on display.

Built‑in function

Precise PID temperature control,heater burnout monitoring,sequence logic,alarm processing and data communication for thermal process loops,used for industrial spare replacement.

Product Brief

UT2800-1/HB is Yokogawa UTAdvanced 96×96 panel PID controller with /HB heater burnout detection option.Check power supply,input signal and option compatibility before ordering.ESD anti-static protection required during installation.