YOKOGAWA UT350L-00 – Digital PID Temperature Controller | UTAdvanced Series
Engineering Background: The YOKOGAWA UT350L-00 is a compact, high-precision digital PID temperature controller from the industry-proven UTAdvanced Series. Designed for demanding industrial process environments, it delivers reliable closed-loop temperature regulation with advanced self-tuning algorithms, making it the preferred choice for OEM machine builders, process engineers, and system integrators worldwide.
Product Positioning: The UT350L-00 occupies the mid-range segment of YOKOGAWA’s UTAdvanced lineup — offering full PID functionality, universal input compatibility, and robust communication options in a compact 48×96mm DIN panel-mount form factor. It is engineered for applications where accuracy, repeatability, and long-term stability are non-negotiable.
Complete Technical Specifications
- Model: UT350L-00
- Series: UTAdvanced
- Manufacturer: YOKOGAWA Electric Corporation
- Form Factor: 48mm (W) × 96mm (H) panel-mount, DIN standard
- Control Mode: PID / ON-OFF / Manual
- Self-Tuning: Yes — auto-tuning (AT) supported
- Input Types: Universal — Thermocouple (K, J, T, E, R, S, B, N, W), RTD (Pt100, JPt100), DC voltage/current (0–5V, 1–5V, 0–10V, 4–20mA)
- Input Accuracy: ±0.1% of span ±1 digit (thermocouple/RTD)
- Sampling Period: 250ms
- Output: Relay contact output (standard); optional SSR drive / current output
- Alarm Outputs: Up to 2 alarm outputs
- Display: Dual 4-digit LED display (PV / SV)
- Communication: RS-485 (MODBUS RTU) — optional
- Power Supply: 100–240V AC, 50/60Hz
- Power Consumption: Max 8VA
- Operating Temperature: 0°C to 50°C
- Storage Temperature: -20°C to 60°C
- Humidity: 20% to 90% RH (non-condensing)
- Protection Rating: IP66 (front panel)
- Weight: Approx. 320g
- Certifications: CE, UL, CSA
- RoHS Compliant: Yes
Proven Application Environments
- Plastic injection molding and extrusion machines
- Industrial ovens, kilns, and furnaces
- Pharmaceutical and biotech process lines
- Food processing and packaging equipment
- Chemical reactor temperature management
- HVAC and building automation systems
- Semiconductor fabrication support equipment
- Laboratory and R&D test chambers
Engineering Advantages
- Universal Input: Single unit accepts TC, RTD, and DC analog signals — reduces spare parts inventory
- Advanced PID with AT: Auto-tuning eliminates manual loop tuning; stabilizes process faster
- IP66 Front Panel: Splash-proof and dust-tight — suitable for wash-down environments
- Compact DIN Format: 48×96mm footprint minimizes panel space; easy retrofit into existing enclosures
- Dual LED Display: Simultaneous PV/SV readout for instant process status at a glance
- MODBUS RTU Ready: Seamless integration with SCADA, DCS, and PLC supervisory systems
- Long Service Life: YOKOGAWA’s proven hardware platform with 10+ year field track record
System Architecture & Signal Flow
The UT350L-00 operates as a standalone closed-loop controller within a broader process control architecture:
- Sensor Layer: Thermocouple or RTD transmits process temperature (PV) to the UT350L-00 universal input
- Control Layer: Internal PID algorithm computes output based on deviation between PV and setpoint (SV)
- Output Layer: Relay or SSR drive signal actuates heater, valve, or cooling element
- Supervisory Layer: RS-485 MODBUS RTU port connects to PLC/SCADA for remote monitoring and setpoint adjustment
- Alarm Layer: Dual alarm outputs trigger external annunciators or safety interlocks on deviation or process fault
Compatible upstream devices: YOKOGAWA YTA series temperature transmitters, Pt100 RTD sensors, Type-K/J thermocouples. Compatible downstream: YOKOGAWA CENTUM VP DCS, FA-M3 PLC, third-party SCADA via MODBUS.
Sourcing & Quality Verification
Konmask.com sources the YOKOGAWA UT350L-00 through verified industrial supply channels. Every unit undergoes our 4-step verification protocol before dispatch:
- Documentation Check: Serial number, CE/UL markings, and factory label verification against YOKOGAWA’s published specifications
- Physical Inspection: Housing integrity, connector condition, display function, and label authenticity
- Functional Power-On Test: Unit powered and display/input response confirmed
- Packaging Audit: Anti-static packaging, moisture barrier, and shock-absorbing foam verified before shipment
All units ship with original YOKOGAWA documentation where available. Traceability records retained for 3 years.
Procurement Process
- Inquiry: Contact us at support@konmask.com with your required quantity, delivery timeline, and destination
- Quotation: We respond within 1 business day with pricing, lead time, and shipping options
- Order Confirmation: Purchase order or online checkout; proforma invoice issued for wire transfer orders
- Quality Check & Dispatch: Units verified per 4-step protocol; shipped with tracking within 2–5 business days
- After-Sales Support: Technical assistance available post-delivery; warranty claims handled directly
Technical FAQ
Q: What is the difference between UT350L-00 and UT350-00?
A: The “L” suffix denotes the loop control variant with enhanced alarm functionality. The UT350-00 is the base model; UT350L-00 adds a second alarm output and extended communication readiness.
Q: Can the UT350L-00 accept a 4–20mA input directly?
A: Yes. The universal input supports DC current signals (4–20mA) via an external shunt resistor (250Ω), converting to 1–5V for the input circuit.
Q: Is MODBUS RTU communication included in the -00 suffix model?
A: The -00 suffix indicates the base hardware configuration. RS-485 MODBUS RTU is an optional add-on; confirm with your order if communication is required.
Q: What is the control output type for UT350L-00?
A: Standard output is relay contact (SPDT, 3A/250VAC). SSR drive (12VDC pulse) and 4–20mA retransmission output are available as factory options.
Q: Is this unit suitable for CE-marked machinery?
A: Yes. The UT350L-00 carries CE marking and complies with EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU.
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