Impac ISR 320 – Compact Two-Color Pyrometer for High-Temperature Measurement

The Impac ISR 320 is a fast, digital, non-contact two-color pyrometer designed for precise temperature measurement from 700°C to 2500°C. Using the ratio (two-color) method, it delivers reliable readings even with varying emissivity, dust, or partial obstruction, making it ideal for demanding industrial processes.

Key Features

• Compact stainless-steel housing for easy installation in tight spaces

• Two-color ratio measurement for high accuracy regardless of emissivity changes

• Fast 10 ms response time for dynamic industrial processes

• RS485 interface for long-distance communication with PLC or PC

• Adjustable 0–20 mA / 4–20 mA analog output

• Internal digital signal processing ensures stable, accurate results

• Built-in LED targeting light for precise alignment

• Intensity indicator LEDs for thermal alignment

• Integrated Dirty Window warning for maintenance alerts

• Supports both two-color and one-color measurement modes

Benefits

• Reliable measurement through dust or partially dirty viewing windows

• Measures objects smaller than the nominal spot size

• Easy parameter setup and data storage capabilities

• High measurement accuracy with low uncertainty

• Flexible installation with any operating position

Technical Specifications

• Temperature Range: 700–2500°C

• Spectral Range: 0.9–1.05 μm

• Uncertainty: 0.5% oR + 1°C

• Optics: Fixed optics, 100:1 minimum spot ratio

• Response Time: 10 ms (t90)

• Interface: RS485; 0/4–20 mA output

• Resolution: 0.1°C

• Ambient Temp: 0–70°C

• Protection: IP65

• Power Supply: 24 VDC

• Emissivity: 0.100–1.000 (one-color)

• Emissivity Slope: 0.800–1.250 (two-color)

• Weight: 0.3 kg

• Housing: Stainless steel