IRIS Pre V1.00 vs Post V1.00
when upgrading DL1 software to Version 1, you may see an iris error in the display. this is due to the fact that iris drive gears have been modified for better homing. If you do not wish to replace the iris gear at the time of upload, simply go to 'SET PARAMETERS' 'IRIS VERSION' and select 'PRE V1.00'. The easiest way to determine iris gear vintage is to look through the front bezel window at the iris drive gear sensor, if there is a silver shim under the sensor the iris gear is pre V.1.0, no shim would be post V 1.0.