86120C Error 4 and 86120B Error 4 Motor index pulse not found is shown on the wavelength meters when it cannot control the motor to run properly.

Send your unit to our PhotonCom Lab for a motor repair or a motor replacement and a full evaluation of the condition of your Agilent 86120C. After repair, your wavelength meter will return back to you fully calibrated with calibration data.You can be confident that our testing will

Other Agilent 86120C error messages for which a repair or a calibration is needed

• 86120 Error 1 Bad checksum from motor
• 86120 Error 2 Motor communication problem
• 86120 Error 3 Motor not moving
• 86120 Error 4 Motor index pulse not found
• 86120 Error 5 Motor chip set init failed
• 86120 Error 6 Motor communication failure
• 86120 Error 7 Motor not settled
• 86120 Error 8 Motor did not stop
• 86120 Error 9 Motor motion error
• 86120 Error 10 Motor position limit failed
• 86120 Error 11 Motor position wrap failed
• 86120 Error 12 Power level too high
• 86120 Error 13 Data download problem