Thermo Scientific 49i Instruction Manual page 186

Servicing
7-2 Model 49i Instruction Manual
"Analog Input Calibration"
"I/O Expansion Board Replacement (Optional)"
"Digital Output Board Replacement"
"Motherboard Replacement"
"Measurement Interface Board Replacement"
"Front Panel Board Replacement"
"LCD Module Replacement"
"Optical Bench Replacement"
"Optical Bench Temperature Calibration"
"Photometer Lamp Replacement"
"Photometer Lamp Voltage Adjustment"
"Photometer Board Replacement"
"Detector Replacement"
"Ozone Scrubber Replacement"
"Sample/Reference Solenoid Replacement"
"Zero/Span Solenoid Replacement (Optional)"
"Pressure Transducer Replacement"
"Pressure Transducer Calibration "
"Flow Transducer Replacement"
"Flow Transducer Calibration"
"Ozonator Lamp Replacement (Optional)"
"Ozonator Lamp Heater Replacement (Optional)"
"Ozonator Replacement (Optional)"
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Thermo Fisher Scientific