PLK Infrared Pyrometer
Capture temperature changes promptly.
Provide feedback for cooling control.
The PLK series is designed for water cooling, using high-speed infrared measurement to acquire workpiece temperatures. A Cortex-M4 32-bit processor, stainless-steel housing and heat-resistant seals support industrial use. OLED display, RS485, analog and relay outputs deliver readings to operators and control systems.
Timely temperature readings
give cooling control a reliable input.
Track workpiece temperature changes
High-speed measurement provides continuous temperature feedback for cooling regulation and monitoring at critical locations.
Support non-contact temperature monitoring
Measure the surface temperature of steel or castings to identify overheating and uneven cooling as part of process control.
Connect readings to your production line
RS485, analog and relay outputs support integration with existing control systems and display devices.
Clear readings for industrial use
The OLED supports local readings, while the stainless-steel housing and heat-resistant seals suit metallurgical and foundry environments.
Key Performance Data
Response time
600–1200 °C rangeMeasurements per second
Continuously track workpiece temperatureDigital communication interface
With analog and relay outputsFor the documented PLK-S1 configuration, response time is 0.85 ms (600–1200 °C), 12 ms (300–600 °C), or 41 ms (300–1200 °C), according to the selected range. Response time and sampling rate are separate specifications; confirm range and accuracy for the supplied model.
Provide temperature feedback for closed-loop control.
Send actual temperatures to the closed-loop system. The servo valve station then adjusts cooling water flow against process targets.
Infrared pyrometer questions
How is the PLK pyrometer used in cooling control?
The pyrometer provides non-contact workpiece surface-temperature readings to the control system. These readings supply feedback for cooling-water regulation. Learn how an electric servo valve station regulates and switches cooling water.
Is the 0.85 ms response time available for every temperature range?
For the documented PLK-S1 configuration, response time is 0.85 ms at 600–1200°C, 12 ms at 300–600°C, or 41 ms at 300–1200°C. Confirm the model, selected range and accuracy for your application. Response time and sampling rate are separate specifications.
Which outputs are available for system integration?
The PLK series provides RS485, analog and relay outputs for connecting temperature readings to control and display systems. Confirm the required interface for the supplied configuration before selecting the instrument.
What information is needed to select a PLK pyrometer?
Provide the target temperature range, measuring distance, workpiece size, installation conditions and system interfaces. These inputs help match the instrument configuration to the measurement location.
Choose the right configuration for your measurement location.
Share target temperature range, measuring distance, installation conditions, workpiece size and system interfaces.