Detector connections Left side Right side Neutral gas purge (ASM 142 D and ASM GRAPH D only) Main power RS232 interface Quick connector switch “I” (option) exhaust Main power cord Printer interface / I/O interface Long distance headphone/ (option) sniffer quick...
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Operator interface ASM 142/142 D Inlet port pressure analog display 17 Alphanumeric display (4 lines x 20 characters) Control and menu selection indicators (ON when 18 Parameter function keys (1 key per display line) activated) 19 Modification access keys (4 keys)
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Operator interface ASM GRAPH/GRAPH D Inlet port pressure analog display 19 Modification access keys (4 keys) Control and menu selection indicators (ON when activated) 20 RESET: next display/parameter circular function Auto-calibration START/ABORT control key 21/22 Plus or minus value adjustment, parameter Sniffing mode ON/OFF control key selection, audio volume adjustment keys Auto-zero ON/OFF control key...
Start-up User interface level CAUTION The detector offers 4 user interface ASM 142/GRAPH levels for this section to accomodate any application requirements. After unpacking the unit, please fill up the roughing pump with oil, as indicated in the Operating manual .
Test cycles SNIFFING TEST MODE READY FOR CYCLE Leak detector in stand-by mode; connect the long STDBY STDBY distance sniffer probe to the quick connector. INLET VENT : off HARD VACUUM TEST MODE READY FOR CYCLE Leak detector in stand-by mode; connect the part or SNIFFER SNIFFER Starting Sniffing test...
He signal analog scale display Audio alarm How to read the He signal analog scale? The audio alarm offers 2 modes of operation. They are both linked to the zero function. Leak detector in hard vacuum or sniffing test mode and zero function reject point is visualized by a blinking led.
Zero function Deactivation of zero function: ZERO The digital display shows the standard He signal. Purpose: the zero function offers the operator the possibility to detect small leaks that are Use Helium signal analog scale. smaller than the helium background. Analog display: ...
Air inlet vent Opening / closing air inlet valve Purpose: the air inlet valve vents the inlet of the detector back to atmosphere at the end (user level 2 , 3 or 4 ) of the test. The indicator “inlet valve = off” indicates that the venting valve is not activated ...
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Calibration AUTOCAL IN PROGRESS Internal: The internal autocalibration is automatically activated External: The external autocalibration allows direct readout in cases of operation with ELECTR. ZERO ADJUST. during the start-up process. It doesn’t require any an auxiliary pumping system. operator action.
Assistance to the test The leak detector offers to the user 4 interesting Memo function To active/deactive this function and adjust display time of the functions in order to improve test. leak value C 550 MEMO FUNCTION Memorization of the latest He signal measured after ...
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