Service And Troubleshooting Procedures; Procedure #1 Om Signal Testing - Veris U3 Operating Instructions Manual

Section 6: Service and Troubleshooting Procedures

Procedure #1 OM Signal Testing

Perform this test weekly or every 50 hours of data collection to ensure you are obtaining reliable data,
and whenever OM data is questionable. The purpose of this test is to insure the instrument is performing
properly.
The V.Sense Controller is shipped with an Instrument Test Load (Part No. 46403) that will enable you to
quickly check the instrument to ensure that it is functioning properly. To perform this test:
1) Disconnect the optical power cable from the OpticMapper/EC Controller.
2) Connect the test load to the Optical Power port.
3) Switch on the OpticMapper and view display on SoilViewer.
4) The display should show:
Red: 833 +/-10
IR:
5) If the readings vary significantly contact Veris service department.
6) Once the test is complete, remove the test load and reinstall the optical power cable.
Figure 1.1 OM Signal Test Load installed
289+/-10
OM Signal Test Load
6-1
Pub# OM20-U3-pH