NIR Borescope 3XR

An infrared thermal imaging solution offering continuous, short-wavelength, 24/7 temperature monitoring for steam reformer and Ethylene cracker tube furnaces.


NIR Borescope (NIR-B) 3XR is a radiometric infrared imaging camera optimised for continuous temperature measurements in steam reformer and cracker tube furnaces.

Using the proven technology of AMETEK Land’s advanced NIR thermal imager, NIR-B 3XR offers highly accurate measurements of high temperatures, enabling process control optimisation, energy efficiency savings and prolonging the lifetime of the reformer tubes. Producing real-time thermal data from 307,200 points across the high-resolution visual image, the imager connects to a PC running dedicated IMAGEPro processing software for accurate data analysis and long-term trending.

By providing a wide temperature measurement range of 600 – 1800 °C (1112 – 3272 oF), NIR-B 3XR provides the hydrocarbon processing industry a highly flexible imaging solution for the unique process conditions of reformer and cracker tube furnaces.

By using a short wavelength to minimise emissivity errors, accurate, continuous temperature profiling is assured, for maximum furnace control. Uneven heating can be visualised and, during start-up phases, any burners not operating correctly can be clearly identified.

The single temperature range and wide dynamic range imaging technology are ideal for applications with high-differential temperatures in the field-of-view.  High-resolution imaging and a 90° field-of-view allows multiple reformer or cracker tubes to be monitored simultaneously.

The NIR-B 3XR is ATEX and IECEx approved to Ex nA IIC T4 Gc for use in Zone 2 gas atmospheres, and CSA Certified for US and Canada to Class I, Division 2, Groups A, B, C, D T4. A three-year warranty guarantees reliability.

The NIR-B 3XR is AMETEK Land’s optimised solution for thermal imaging in reformer and cracker tube furnaces.

Extra Informatie


Datasheet AMETEK Land NIR Borescope 3XR
Case Study NIR Borescope 3XR Air Liquide


Website AMETEK Land NIR Borescope 3XR ATEX thermal imager





Measurement Range
600 to 1800 °C / 1112 to 3272 °F
Spectral Response 0.85 to 1.05 µm
Frame Rate 7.5 fps (100M Ethernet)
Image Pixels 640 x 480
Accuracy 1.0 % Celsius
Sealing IP 65 (when connections mated/fitted with caps)
Repeatability 1 °C
Data Out Digital data over 100M Ethernet (M12, 8 pin)
Software Complete Land Image Processing Software (LIPS) package for Windows
Standard Accessories Field Connection Box (ExHazloc) and cables (10 m, 25 m or 50 m),
software, water cooled/purged mounting and tube
Field of View (Horizontal) 90°
Focus Range 1000 mm to infinity
Probe Length 305, 609 or 914 mm (12”, 24” or 36”)
Probe Diameter 57 mm (2.24 in.) max.
Mountings Choice of 3” ANSI 150 RF Flange & Gasket or PN16 DN80 Flange & Gasket
with a 12” standpipe
Dimensions 254 x 560 x 717 mm (or 1021 mm or 1326 mm)
10” x 22” x 32” (or 44” or 56”)
Power Rating 21.6 – 26.4 V dc, 0.6 A
Weight < 25 kg (for 609 mm / 24” version)
Hazardous Area Certification
EX Borescopes
ATEX Logo EX NIR-B WG1: Ex nA IIC T4 Gc Tamb=-20 °C to +55 °C
(ATEX certificate: CML 15ATEX4086X / IECEx certificate: IECEx CML 15.0042X)
EX NIR-B WG2: Class I, Division 2, Groups A, B, C, D; T4 Tamb=-20 °C to +60 °C
(CSA certificate for US and Canada: 70080206)
Field Connection Boxes ATEX Logo EX FCB 31: Ex nA nC [op-is Ga] IIC T4 Gc Tamb=-25 °C to +54 °C
(ATEX certificate: CML 15ATEX4085X)
EX FCB 32: Class I, Division 2, Groups A, B, C, D; T4 Tamb=-25 °C to +50 °C
(CSA certificate for US and Canada: 70052791)