Operation194.6 Verify using dry standard CVM1. Open the MAIN MENU.2. Choose SENSOR SETUP and accept.3. Choose the related sensor and accept.4. Choose VERIFY and accept.5. Choose STANDARD and accept.6. Shut-off the feed and accept TURN OFF SAMPLE INLET.7. Drain the measuring chamber via the lower feed union and accept DRAINMEAS. CHAMBER.8. Open the screw top and remove the sealing plug and wiper holder.9. Carefully dry the measuring chamber.10. Clean the CVM module with a cloth ( included in the accessory setof the CVMmodul).11. Guide the CVM module into the measuring chamber.The arrow mark must point downwards!Ensure that the spring-loaded ball engages by turning slightly in the samplefeed opening on the measuring chamber, see Figure).Accept INSERT CVM DRY STANDARD.12. Accept x.xxx TRBFNU.13. Remove the CVM module and accept REMOVE CVM MODULE .14. Re-fit the sealing plug and wiper holder and accept REPLACE WIPERHOLDER AND CAP.15. Screw back on the screw top and accept TIGHTEN CAP.16. Re-connect the feed and accept CONNECT SAMPLE INLET.17. Open the feed and accept VER. READY OPEN INLET.18. Accept OUTPUT ACTIVE.4.7 Zero point setting1. Open the MAIN MENU.2. Choose SENSOR SETUP and accept.3. Choose the related sensor and accept.4. Choose CALIBRATE and accept.5. Choose OFFSET and accept.6. Shut off the feed and drain the measuring chamber. Connect a membranefilter (LZV325) to the measuring chamber feed. Open the feed and acceptPOUR 0 STD INTO MEAS. CHAMBER.7. Accept PRESS ENTER WHEN STABLE x.xxx TRBFNU.8. Set the zero point and accept CALIBRATE (x.xxx TRBFNU).9. Accept CAL READY OUTPUT ACTIVE.