Fluke 66 FE 63-66-68 Users Manual - Page 27

63/66/68 Specifications Distance to Spot Ratio 63: 12:1 66: 30:1 68: 50:1 Emissivity (Adjustment for surface measured) 63: Pre-set at 0.95 66/68: Digitally adjustable from 0.10 to 1.0 Response Time 500 mSec Repeatability ±0.5 % of reading or ±1 °C (±2 °F), whichever is greater Spectral Response 8 µm to 14 µm Laser Sighting Laser turns off above ambient temperature of 40 °C (104 °F) Relative Humidity 10 % to 90 % RH non-condensing, at < 30 °C (86 °F) Tripod Mount ¼ in. 20 UNC threading Operating Temperature 0 °C to 50 °C (32 °F to 120 °F) Storage Temperature 0 °C to 50 °C (32 °F to 120 °F) Weight 320 g (.7 lbs) Dimensions 200 mm x 160 mm x 55 mm (7.8 in x 6.30 in x 2.17 in) Battery Type 9 V Alkaline or NiCd Battery Life 63: 10 hours with laser and backlight on 40 hours with laser and backlight off 66/68: 20 hours with laser and backlight on 40 hours with laser and backlight off 23