Pfeiffer Vacuum Standard Sniffer Probe for ASM Leak Detectors
Contents
1. Example gt target value 60 sccm gt value displayed on the flowmeter 48 sccm 80 of the target value Remove the needle from the nozzle and cut 4 mm from the straight end Use of the old needle as a reference A N With this method the uncertainty about the maximum flow taken by the sniffer probe is more important e Maximum flow taken 60 10 SCCM e Leak flow Q 4 10 mbar l s lt Q lt 6 10 mbar l s Take out the filter see Filter exchange 14 16 Alcatel Vacuum Technology France Ref 110112 Edition 2 January 04 Ref 110112 Edition 2 January 04 Instruction en fran ais p 1 8 G 200 USE AND CARE OF THE LONG DISTANCE SNIFFER PROBE Instructions in English p 9 16 With needlenose pliers take out the original needle Put the new needle ref and cut to the same length as the original needle Note for the flexible sniffer probe SNCxE3Tx and SNCxE4Tx the needle length should be 2 5 cm ref Bend the needle as shown in the picture Put the needle in the nipple the crooked end to outside ref and push it in with a 2 5 allen key to stop Put back the filter Needle O RING INSTALLATION When you unscrew the nipple from the probe it is possible for the o ring to come out with the nipple you should put it back ref Place the o ring on the nipple of the aspiration tube in the sniffer body ref Push the o ring with the nipple of the snif2. 2 needle types 0 30 mm ou 0 35 mm This choice is done in factory and it is permanent How to identity the needle set in your snifffer probe gt The needle shape is different e 0 30 mm needle e 0 35 mm needle gt The sniffer probe nozzle is marked Ls Midd a WU i hott e Sniffer probe equipped with a e Sniffer probe equipped with a 0 30 mm needle has no mark or is 0 35 mm needle is marked 5 marked 0 Alcatel Vacuum Technology France 11 16 Instruction en fran ais p 1 8 G 200 nstructions in English 99 eee eee eee USE AND CARE OF THE LONG DISTANCE SNIFFER PROBE AVAILABLE SPARE PARTS ee a AS Oe Ee ee ee Si eg aS o rae Te 0 30 mm needle 072606 0 35 mm needle A461716 Rigid nozzle of 9 cm 10824258 Rigid nozzle of 30 cm 1042438 Flexible nozzle of 15 cm 10888358 Flexible nozzle of 45 cm 1088845 delivered with the suitable needle not cut Screw alone A459725 1 2 3 it for sniffer probe with 5 filters 2 O rings and 2 screws A459858 FILTER EXCHANGE With the 2 5 Allen key remove the screw at the end of the sniffer probe ref Take out the old filter Put the new filter in the port ref Hold this assembly straight up and screw on the nipple of the sniffer probe ref and torque lt 1 N m Install the screw so that it is totally inside the nipple you should see a few threads ref and 12 16 Alcat
3. Ref 110112 Edition 2 January 04 Instruction en fran ais p 18 d vacuum products www idealvac com G 2 0 0 Instructions in English p 9 16 USE AND CARE OF THE LONG DISTANCE SNIFFER PROBE This document concerns the SNCxExTx long distance sniffer probes A For all service operations the long distance sniffer probe should be disconnected from the helium leak detector A The parts involved are small be careful not to loose them DIMENSIONS D 6 mm 0 2 33imeh Dimensions of the sniffer probe end for all sniffer probe models 20 mm 0 8 inch To calcultate the complete size of the sniffer C probe add A and C depending on the lt sniffer probe model Example sniffer probe p n SNC1E1T1 gun A 19 cm tubing C 5 m gun A 7 5 inch tubing C 197 inch 9 cm 3 5 inch SNCxE1Tx 19 cm 7 5 inch pe 80en 11Binch Nez a0 em 15 7 inch P aS an 17 7inch SNOT 55 e218 inch Sniffer probe part number Tubing C PVC flexible external SNCTExTx 5 m 197 inch O OA E SNC2ExTx 10 m 394 inch Alcatel Vacuum Technology France 9 16 Instruction en fran ais p 1 8 G 200 USE AND CARE OF THE LONG DISTANCE SNIFFER PROBE Instructions in English p 9 16 TECHNICAL CHARACTERISTICS Sniffer probe with rigid Sniffer probe with flexible nipple nipple part number SNCxE1Tx part number SNCxE3Tx and SNCxE2Tx and SNCxE4Tx Maximum flow taken by the 60 2 sccm 1 mbar l s
4. el Vacuum Technology France Ref 110112 Edition 2 January 04 Ref 110112 Edition 2 January 04 Instruction en fran ais p 1 8 G 200 nstructions in English 9 2 _ Pos USE AND CARE OF THE LONG DISTANCE SNIFFER PROBE Screw inside the Eog the i ipl _ the nipple nipple pr d 7 O gt a Good position Bad position When you change the filter we recommend cleaning the needle and the nipple sniffer probe with rigid nipple only Take out the needle with needlenose pliers Clean delicately the needle with alcohol and a lint free cloth Clean the rigid nipple with alcohol and compressed dry air Put back the needle Put back the filter with its screw torque lt 1 N m NEEDLE REPLACEMENT With this kind of sniffer probe it is normally not necessary to change the needle N For every needle replacement in a sniffer probe put a new needle with the same diameter as the old needle 3 methods can be used for the new needle adjustment flowmeter use standard snitter probe use old needle use Recommended methods Flowmeter use in order to measure standard sniffer probe use as the flow in the sniffer probe reference Assembly to do This method requires keeping a new sniffer probe as a standard probe Do an auto calibration in sniffing mode with the standard sniffer probe emer piers Do a measure of the He in the air with the connected to the assembl
5. fer probe ref The o ring is correctly placed on the nipple ref Screw on the nipple of the sniffer probe Alcatel Vacuum Technology France 15 16 Instruction en fran ais p 1 8 G 200 USE AND CARE OF THE LONG DISTANCE SNIFFER PROBE Instructions in English p 9 16 SNIFFER PROBE CLOGGED MESSAGE A Snitfer probe clogged message could appear on the control panel LCD display or be announced by the voice synthesis the leak detector compares the helium signal read on the detector to the sniffer probe clogged reject threshold Sniffer probe clogged message No message 107 mbar s A P ug 9 9 oe mbar l s Sniffer probe clogged Value of the helium signal reject threshold value read on the detector During the needle adjustment this message could appear without the sniffer probe necessarily being clogged this is why the needle length is so important For more details please consult the user s manual delivered with your leak detector Advice Block the sniffer probe end from time to time with a finger to check that the helium signal goes down If not the sniffer probe may be clogged ADAPTOR FOR CALIBRATED LEAK Description Part number Adaptor for DN 16 calibrated leak 110715 Adaptor for DN 25 calibrated leak 110716 Special adaptors for calibrated leaks have been designed Adaptor to ensure a good connection and repetitive and reliable calibration with a sniffer probe Sniffe
6. probe Note A flow variation in the sniffer probe does not modify the sensitivity but ony the response time A Flow N Response time Q 5 10 mbar I s 5 10 mbar s lt Q lt 10 mbar s Leak flow Q read on the leak detector during a measure ment of the He in the air without correction factor Correction factor Cor to 0 5 lt Cor lt apply in order to read a leak flow in the leak detector of 5 10 mbar l s A Sniffer probe not designed for precise measurements USE PRECAUTIONS WITH THE FLEXIBLE SNIFFER PROBE Do not step on the probe or flatten it The nipple should not be curved ref without respect the instructions below The nipples should not be bent as shown below ref and lt The sniffer probe nipple can be bent if necessary but you should respect a minimum radius of curvature ref and 10 16 Alcatel Vacuum Technology France Ref 110112 Edition 2 January 04 Ref 110112 Edition 2 January 04 Instruction en fran ais p 1 8 G 200 nstructions in English 9916 meena e t USE AND CARE OF THE LONG DISTANCE SNIFFER PROBE Sniffer probe with a flexible nipple of 15 cm Sniffer probe with a flexible nipple of 45 cm part number SNCxE3Tx part number SNCxE4Tx R gt 5 cm 2 inch E gt 2 cm 1 inch do not twist bend the E section FLOW ADJUSTMENT In order to adjust the flow inside the sniffer probe it comes equipped with
7. r probe Calibrated leak AN With the adaptor for calibrated leaks use Value read on the leak detector Calibrated leak value value of the helium in the air 16 16 Alcatel Vacuum Technology France Ref 110112 Edition 2 January 04
8. y standard sniffer probe Cut the new needle to 85 mm 3 35 inch Prepare it see below Use of the old needle as a reference picture and put it correctly in the nozzle see Needle exhange 8 Alcatel Vacuum Technology France 13 16 Instruction en fran ais p 1 8 G 200 nstructions in English 92 16 _ Pos USE AND CARE OF THE LONG DISTANCE SNIFFER PROBE Flowmeter use cont standard sniffer probe use cont In a no helium polluted environment do a measure of the helium in the air with the sniffer probe to adjust Depending on the measure result cut the neddle according to the precautions indicated below Put back correctly the needle in the nozzle Repeat these operations until the flowmeter Repeat these operations until the display displays the value of the maximum flow corresponds to the display with the standard taken by the sniffer probe 60 2 sccm sniffer probe in the helium of the air If the message sniffer probe clogged appears in the control panel display during these adjustments please refer to Sniffer probe clogged message 8 Precautions to cut the needle It is necessary to cut small amounts of the needle especially when we are near the target value refer to the figure below Needle length cut at one time 10 mm 0 39 inch 5 mm 0 19 inch Example 4 mm for 80 A Be careful in his zone 1mm 0 04 inch Target value seeked 70 80
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