Quartz-Mini-Tube-IR-E-Mitters_Series-Size_Series-KTE2---KTG2
| KTE2 Series – 4.88" × 2.46" Housing |
| Watts/Square Inch vs. Temperature Data |
Heater Wattage |
Heater FaceWatt Density* |
Heater Body
Temp @ 72°F** |
Peak Emitted
Wavelength***(microns) |
| |
Style S |
Style C |
Style S |
Style C |
Style S |
Style C |
| 100 |
12.29 |
10.53 |
753 |
695 |
4.3 |
4.52 |
| 125 |
15.36 |
13.16 |
838 |
779 |
4.02 |
4.21 |
| 150 |
18.43 |
15.79 |
907 |
848 |
3.82 |
3.99 |
| 163 |
20.02 |
17.16 |
939 |
880 |
3.73 |
3.89 |
| 200 |
24.57 |
21.05 |
1020 |
959 |
3.52 |
3.68 |
| 250 |
30.71 |
26.32 |
1117 |
1049 |
3.31 |
3.46 |
| 300 |
36.86 |
31.58 |
1206 |
1130 |
3.13 |
3.28 |
| 325 |
39.93 |
34.21 |
1248 |
1169 |
3.05 |
3.2 |
| 350 |
43 |
36.84 |
1287 |
1206 |
2.99 |
3.13 |
| 400 |
49.14 |
42.11 |
1356 |
1276 |
2.87 |
3 |
| 500 |
61.43 |
52.63 |
1451 |
1389 |
2.73 |
2.82 |
| 540 |
66.34 |
56.84 |
1476 |
1422 |
2.69 |
2.77 |
| 600 |
— |
63.16 |
— |
1460 |
— |
2.72 |
*Heater Face Watt Density
Watt density calculation is based on heater face surface area, which is a relative constant value used to relate different sizes of heaters. The 6 tube KTE (Style S) has a surface area 85.7% of a 7 tube unit and will operate at a temperature 16.6% higher than the 7 tube (Style C) unit. This relationship has been confirmed through laboratory testing on various sizes of KTE heaters.
**Heater Body Temp @ 72°F
Heater face temperature as measured with a type K thermocouple mounted directly on the heater face. Temperatures are for a single heater facing down with target re-radiation from an oxidized SS surface 3" from heater face. Operating temperatures (and emitted wavelength) will vary with application conditions such as higher ambient, target absorption properties, moving/stationary systems, and distance to target. The tabulated temperatures are averages compiled from standardized lab tests on different ratings and sizes of KTE heaters. Translucent tube testing showed that various reflector materials and surface conditions (bright, oxidized, etc.) had little or no effect on test results. Lower heater temperatures will occur if radiation is allowed to dissipate freely from the surface without target re-radiation (about 20-25% lower when facing up in open air).
***Peak Emitted Wavelength
Peak infrared radiation wavelength as calculated from Wien's Displacement Law, for the operating temperature shown, expressed in microns (µm). The emissivity of KTE quartz heaters is close to the ideal blackbody value of 1.0 (range is from .88 to .92). This has been confirmed by testing using a thermal infrared camera.