Infrared Temperature Sensors - Micro IRt/c.4

• Sensing Range: -49 to 1157°F (-45 to 625°C)
• Field of View: approximately 4:1 (14°)
• Repeatability 0.02°F (0.01°C)
• Interchangeability ±1%
• Resolution approx. 0.0003°C
• Minimum Spot Size: .1" (3mm)
• Spectral Response​: 3 to 20µm​
• Output Impedance​: 40 Kohm​s
• Response Time​: 60 Milliseconds​

  • Model Number: Micro IRt/c.4
  • Data Sheet: Date Sheet File
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  • Infrared Temperature Sensors
  • Infrared Temperature Sensors
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Product Specification

Micro IRt/c.4 Infrared Temperature Sensors Features:
• Infrared Thermocouple IRt/c
• Non-contact
• Self-powered
• Intrinsically Safe
• Repeatability 0.02°F (0.01°C)
• Interchangeability ±1%
• Resolution approx. 0.0003°C
• Small Size

Micro IRt/c.4 Infrared Temperature Sensors Technical Data

Sensing Range
-49 to 1157°F (-45 to 625°C)
Ambient Temperature Range
-4 to 212°F (-20 to 100°C).
Air purge jacket available for cooling to 347°F (175°C)
Optimum Range Selection
One model: 2% linear to match a Kt/c from
212-240°C (see Temperature Selection Chart).
For other temperature ranges please contact Exergen Global
Field of View
approximately 4:1 (14°)
Minimum Spot Size
.1" (3mm)
Spectral Response
3 to 20µm
Output Impedance
40 Kohms
Response Time
60 Milliseconds
0.25" (6.3mm) Dia. x 1.0" (25.4mm)
Stainless Steel, Hermetically sealed, exceeds NEMA 4X, IP67
3 feet of unsheilded, duplex insulated, type K, 24
AWG, PFA jacket rated to 500°F (260°C) (Shielded
cable available upon request)
Approximately 1oz. (30 grams) with cable
Input Device Compatibility
It is recommended to use input devices with less than 1 nA 
of leakage current to minimize offsets, and sensor break 
detection should be set to 40 Kohm maximum.

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