MBW 973 ICE TEST FAIL
When a chilled mirror analyzer continuously fails its ice test, professional servicing involves sending the unit back to the original equipment manufacturer (OEM) or an accredited calibration laboratory. Technicians perform an in-depth diagnosis, hardware repair, and specialized calibration that cannot be completed in the field
Advanced Diagnostic & Hardware Repair
• PRT Sensor Realignment: The platinum resistance thermometer (PRT) measures the precise temperature at which ice melts (0.0°C). Technicians test, realign, or replace this sensor if it has drifted out of tolerance.
• Peltier Element Testing: The system's internal thermoelectric cooling pump (Peltier element) is tested to ensure it can reach the low temperatures required to freeze the mirror correctly.
• Optical Core Replacement: If the mirror surface is permanently scratched, pitted, corrupted by chemical corrosion, or suffers from optical misalignment, the entire optical mirror block is replaced
2. ISO/IEC 17025 Accredited Calibration
• Traceable Re-Certification: The instrument undergoes rigorous multi-point testing using professional humidity generators and high-precision transfer standards.
• National Standards Alignment: Testing is verified to be fully traceable to national standard bodies such as NIST. You will receive an officially signed Calibration Certificate establishing renewed measurement accuracy and validity.
3. Preventive Maintenance & System Checks
• Gas Path & Seal Integrity: Technicians perform internal leak tests on the gas pathways and couplings to guarantee sample pureness.
• Firmware Updates: The internal computing system is flashed with the latest operating software to resolve hidden algorithmic errors during automated tests
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