Two-Color Non-Contact Infrared Pyrometers - PSC-SR54NL/PSC-SR54NV

• Temperature Range: 500 to 3000°C
• Spectral Range: 0.8µm to 1.1µm
• Accuracy: 0.5% of Measured Value in °C
• Reproducibility: 0.1% of Measured Value in °C
• Transmissivity: 50% to 100%
• Power Consumption: Max. 1.5W
• Power Supply: 24 V DC ± 25%, Residual Ripple 500 mV
• Operating Temperature: 0° to 70°C (32° to 158°F)

  • Model Number: PSC-SR54NL/PSC-SR54NV
  • Data Sheet: Date Sheet File
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  • Two-Color Non-Contact Infrared Pyrometers
  • Two-Color Non-Contact Infrared Pyrometers
  • Two-Color Non-Contact Infrared Pyrometers
  • Two-Color Non-Contact Infrared Pyrometers
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Product Specification

2-Color Pyrometer Series For Industrial and R&D Applications

PSC-SR54NL/PSC-SR54NV Non-Contact Infrared Pyrometers Description
Two-Color or Ratio Pyrometers measure temperatures from the ratio of radiation signals of two adjacent wavelengths as opposed to measuring the absolute intensity within one wavelength, as with one-color pyrometers. The advantages and benefi ts of using two-color sensors are the following:
• Automatic compensation for viewing though dirty windows, dust and partial smoke between sensor and target.
• Compensation for changes in target emissivity i.e. gray bodies — targets with the same emissivity on both wavelengths.
• Measures smaller target than sensor’s fi eld of view (FOV/Spot Size) i.e. measures weighted peak temperature within FOV.
• Unaffected by moving targets within FOV.

PSC-SR54NL/PSC-SR54NV Non-Contact Infrared Pyrometers Features
• High Accuracy/Repeatability with Self-Contained Stand Alone Operation
• Wide Temperature Ranges from 500° to 3000°C (932° to 5432°F)
• Integrated Red Laser or Video Camera Sighting
• High Resolution Optics Up to FOV 200:1
• Fixed Focus Optics
• Fast Response Time – 5 milliseconds, adjustable
• Simultaneous Analog and Digital Outputs
• 4-20mA and Digital RS-485 Communications
• Durable, Compact Stainless-Steel Housing
• Innovative, Rugged Design Accessories

PSC-SR54NL/PSC-SR54NV Non-Contact Infrared Pyrometers Applications
• Induction Heating
• Steel Industry
• Heat Treating of Metals
• Kilns
• Vacuum Furnaces
• Welding
• Composites
• Sintering
• Nuclear
• Research and Development

Specifications PSC-SR54NL and PSC-SR54NV Non-Contact Infrared Pyrometers

Temperature Range
500° to 1200°C
600° to 1400°C
700° to 1800°C
800° to 2500°C
900° to 3000°C
932° to 2192°F
1112° to 2552°F
1292° to 3272°F
1472° to 4532°F
1652° to 5432°F
Sub Temperature Range
Adjustable Within Overall Temperature Range, Minimum Span 50°C (122°F)
Field of View Ratio
0.5% of Measured Value in °C
0.1% of Measured Value in °C
PSC-SR54N: Laser, 630…680 nm, Class II, <1 mW
PSC-SR54NV: Video Camera, Composite Video Signal NTSC (M), 60Hz or PAL (B), 50Hz
Choice of Optics Types
650mm, 2000mm, 4000mm
Spectral Range
0.8µm to 1.1µm
Ratio Correction K
0.800 to 1.200
0.050 to 1.000
Response Time (t95)
5 ms (min.) Adjustable up to 100 seconds
50% to 100%
0/4 mA to 20 mA, Linear, Max. Load 500 Ω (Galvanically Isolated)
Interface RS-485 (Galvanically Isolated), Half Duplex, Max. 115 kBd, Modbus RTU
Switching Output/Threshold
1 Opto Relay, R Load Min. 48Ω (Galvanically Isolated) Adjustable Within Temperature Range
Adjustable Via Interface and Software, or at Device using handheld programmer: 
Ratio Correction, Emissivity, Transmissivity, Response Time, Data Storage Settings, 
Sub Range of Measurement Output, Switching Thresholds of Switching Output

Power Supply
24 V DC ± 25%, Residual Ripple 500 mV
Power Consumption
Max. 1.5W (Without Load at Switching Output)
Operating Temperature
0° to 70°C (32° to 158°F)
Storage Temperature
-20° to 70°C (-4° to 158°F)
600 grams (1 lb. 5.16 oz.)
Stainless Steel Cylindrical Housing with Plug Connector 4.1” (105 mm)L x 2” (50mm) OD
Safety Class
IP65 According to DIN EN 60529 and DIN 40050
Test Regulation
EN 55 011: 1998, Limit Class A
CE Symbol
According to EU Regulations
Standard Equipment
PSC-SR54N/PSC-SR54NV, Operation Manual, Inspection Sheet. No-cost PSCSpot Software 
is included with the purchase of an optional RS485 to USB adapter and connection cable 
that must be ordered separately

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