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General| Type | Refractometer |
|---|---|
| Model | NDI 450 |
| Manufacturer | NORMALAB |
| Display | LCD |
| Interfaces | RS232 |
| Refractive Index Range | 1.3000 to 1.7000 |
| Resolution | 0.0001 |
| Accuracy | ±0.0002 |
| Temperature Control | Yes |
| Wavelength | 589 nm |
| Sample Volume | 0.3 ml |
Details the mechanical components and layout of the NDI 450 instrument.
Specifies installation and environmental requirements for proper operation and longevity.
Explains the electronic architecture, boards, and external connections of the NDI 450.
Procedures for opening panels and accessing internal components of the NDI 450.
Maintenance and replacement procedures for the level follower system.
Maintenance and replacement procedures for the heating block.
Procedures for maintaining the cooling condenser system.
Maintenance tasks related to the instrument chassis.
Procedures for components within the electronic drawer.
Maintenance and replacement of front panel components.
Overview of calibration options and procedures available for the instrument.
Detailed procedures for calibrating sample temperature measurements.
Steps for calibrating the barometric sensor.
Recommended calibration procedures for test tubes.
Role of the Process CPU in managing acquisitions, regulations, and processes.
Function of the MMI CPU for managing orders and peripherals.
Function of the CL1 board in managing sensors.
Function of the CL2 board as an interconnection board.
Role of the CL3 board, functioning as a relay board.
Diagram illustrating the interconnection scheme of the instrument's components.
List of available spare parts for the instrument.
Diagrams showing the schematics of the instrument's electronic boards.
Covers issues like circuit breaker problems, blown fuses, and power supply faults.
Addresses problems with divergent temperatures, incorrect boiling points, and flow rate regulation.
Troubleshooting for level follower errors, detection failures, and final volume inaccuracies.
Instructions and guidance for updating the NDI 450 instrument.
Important safety rules to follow when operating the NDI 450.
Procedure for installing a new MMI software version via the update option.
Procedure for installing a new firmware version using the update option.
Information and troubleshooting for common error messages encountered.
Section containing logbook entries and self-diagnostic information.
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