B2 - Schoonover, Inc.

ULTRATEST UL 500 dry Stationary Helium Leak Detector
Leak Detectors
Technical Data
ULTRATEST UL 500 dry
Smallest detectable helium leak rate mbar x l x s -1 5 x 10 -11
Largest quantitatively detectable helium leak rate mbar x l x s -1 10
Max. inlet pressure for quantitative measurements mbar (Torr) 100 / (75)
Time until ready for operation min ² 5
Detectable masses amu 2, 3 and 4
Pumping speed during the evacuation process m 3 x h -1 25
Pumping speed for helium at test port l x s -1 ³ 12
Time constant of the leak signal (blanked off, 63% of final value) s < 1
Pumpdown time until ready for leak detection
Without additional volume s 6
At a test volume of 1 l s 6
At a test volume of 50 l s 150
Response times
Up to a test volume of 10 l s ² 1
Up to a test volume of 50 l s ² 5
Display capacity for leak rates
1. Quasi-analog display 360¡ circular display, 45 segments logarithmic divisions,
1 decade per turn
Bar scale for leak rate exponent
2. Digital display 2 digits, two-digit exponent, sign
Units of measurement (selectable) ppm, mbar x l x s -1 , Pa x m 3 x s -1
Atm x cc x sec -1
Vacuum pumps
High vacuum pump
TURBOVAC 150 LS
Backing vacuum pump Tri Scroll 600
Auxiliary pump TURBOVAC 35 LS / diaphragm MD 4
B5
Mains connection V 115 / 200 / 220 / 380
Mains frequency Hz 50/60
Chart recorder output
2 channels 0 - 10 V
Noise level during operation, max. dB (A) 58
Dimensions (W x H x D) mm (in.) 1105 x 627 x 775 (43.5 x 24.7 x 30.5 in.)
Weight kg (lbs.) 205 (453)
Ordering Information
ULTRATEST UL 500 dry
Part Number
ULTRATEST UL 500 dry with calibrated leak TL 7, TURBOVAC 35 LS and 150 LS
115 / 220 V, 1 phase 140 50
200 / 380 V, 3 phase 140 51
For accessories see Section ÒAccessories for UL 500 and 500 dryÓ - Page B5.35
B5.21