The Dräger Jaundice Meter JM-105 is a critical medical device used for the non-invasive screening of neonatal jaundice. A comprehensive service manual for this device is essential for biomedical engineers and healthcare technicians to ensure accurate bilirubin measurements and device longevity. 1. Device Overview and Technical Principles
is a transcutaneous bilirubinometer that measures the "yellowness" of subcutaneous tissue in infants as young as 24 weeks.
Measurement Method: It uses a light-scattering technique to provide a digital measurement correlating with serum bilirubin (TSB) levels.
Target Population: Newborns >24 weeks gestation, generally up to 14 days of age.
Key Benefit: Reduces the need for painful blood draws and lowers the risk of infection. 2. Maintenance and Calibration Proper maintenance as outlined in the
service manual ensures the device remains within clinical specifications. jm105 service manual full
Probe Cleaning: The reusable probe tip must be cleaned with an alcohol swab before every use to maintain hygiene and measurement accuracy.
Battery Maintenance: The manual provides step-by-step instructions for checking and replacing the internal battery.
Calibration Check: Technicians must regularly verify the device's accuracy using the built-in checker or external calibration tools as specified by Dräger. 3. Troubleshooting Common Issues
The service documentation identifies several common operational errors and hardware faults:
Measurement Errors: Often caused by improper probe placement (not perpendicular to the skin) or low battery voltage. The Dräger Jaundice Meter JM-105 is a critical
Data Transfer Issues: For devices connected to hospital information systems (HIS), troubleshooting includes checking the docking station connections and barcode scanner functionality.
Error Codes: Specific codes on the display indicate sensor failures or internal electronic faults requiring professional repair. 4. Parts Catalog and Accessories
A full service manual includes an exhaustive list of orderable parts to minimize device downtime.
Docking Station: Necessary for both charging and data transmission to electronic medical records.
Battery Packs: Specialized rechargeable units designed for medical-grade performance. PLC input/output list (e
Barcode Scanner: An optional but frequent component used for scanning baby and nurse IDs to reduce manual transcription errors. 5. Accessing Official Documentation
Technical staff can find official manuals through the following authorized channels: JM-105 Jaundice Meter Service Manual | PDF - Scribd
This section explains how the hardware functions electronically and mechanically.
Before diving into the manual itself, it's crucial to understand the machine. The JM105 typically refers to a line of medium-duty industrial machinery—common in plastics manufacturing, textile processing, or metal forming. Depending on the brand variant (often associated with older Japanese or licensed Chinese industrial presses and injection molding machines), the JM105 is known for its robust hydraulic system, complex electrical control panel, and precision screw/barrel assembly.
Key specifications often covered in the manual:
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