For internal use only!! SF6-LeakPointer vs. SF6-LeakSpy Comparison of major data For internal use only!!

For internal use only!! Contents: Dimensions and weight Technical data Cross-sensitivity For internal use only!! Page 2 2

For internal use only!! Dimensions and weight SF6-LeakPointer SF6-LeakSpy 3-033-R200 3-033-R201 Dimensions W 300 mm, H 75 mm, D 230 mm (with carrier case) W 125 mm, H 142 mm, L 280/555 mm (without/with gooseneck) L 280/805 mm (without/with gooseneck) Weight 1,160 g (with carrier case and accessories) 1,580 g Approx. 1,700 g Length gooseneck 385 mm 300 mm 550 mm SF6-LeakSpy For internal use only!! SF6-LeakPointer Page 3 3

For internal use only !! Technical data 1/3 SF6-LeakPointer 3-033-R002 SF6-LeakSpy 3-033-R200/201 Measuring principle High voltage ionisation Non-dispersive infrared sensor (NDIR) Measuring range No indication (optical and acoustical indication only; no quantification) 0 – 1,000 ppmv SF6 Resolution 1 ppmv SF6 Detection limit 3 ppmv SF6 Sensitivity 5 g SF6 / year 3 g SF6 / year Accuracy < 50 ppmv ± 2 ppmv 50 - 100 ppmv ± 5 ppmv 100 – 1,000 ppmv ± 2 % For internal use only !! SF6-LeakSpy SF6-LeakPointer Page 4 4

For internal use only !! Technical data 2/3 SF6-LeakPointer 3-033-R002 SF6-LeakSpy 3-033-R200/201 Response time: T90 Approx. 1 second / < 1 second Indication 8 segment bar display + 7 LED measuring range indication + acoustic signal Graphic display + audible signal (mute function possible) Indication units No indication (optical and acoustical indication only; no quantification) ppmv, g/y, cc/s Power supply 3x1.5 V alkali batteries C LR14 Lithium ion batteries for operation > 12 h; exchangeable accumulator (parallel loading of a second accumulator in separate charging unit possible) Operating temperature -20oC up to +50oC 0oC up to +50oC For internal use only !! SF6-LeakSpy SF6-LeakPointer Page 5 5

For internal use only!! Technical data 3/3 SF6-LeakPointer 3-033-R002 SF6-LeakSpy 3-033-R200/201 Compensation Temperature-compensated Pressure and temperature compensated Sensor stability Low High Life time No indication ≥ 10 years Calibration None (optical and acoustical indication only; no quantification) Calibration recommended in a 2-year‘s interval For internal use only!! SF6-LeakSpy SF6-LeakPointer Page 6 6

For internal use only !! Cross sensitivity SF6-LeakPointer 3-033-R002 SF6-LeakSpy 3-033-R200/201 Moisture Sensitive to moisture; reacts to humid breathing air (= air moisture) and in head space of liquids No cross-sensitivity to moisture (0 – 100 % rM not conden-sating) VOCs and other gases Reacts to all substances that impair ionisation. Virtually no cross-sensitivity to other gases by using a narrow-band optical filter. Background contamination Sensitive to environmental influences and other gases No sensitivity to background contamination (can be adjusted to the SF6 value encountered). Impact of large leakages Uneffected by large leakages and 100 % SF6 For internal use only !! SF6-LeakSpy SF6-LeakPointer Page 7 7

DILO Armaturen und Anlagen GmbH Frundsbergstrasse 36 D-87727 Babenhausen Tel.: +49 (0) 83 33 - 302-0 Fax: +49 (0) 83 33 - 302-52 E-Mail: info@dilo-gmbh.com