Official and community-hosted documents are available for technical reference:
User Manual: Detailed operational instructions can be found on Scribd or the Internet Archive.
Service Manual: Comprehensive hardware schematics and adjustment procedures are available at Studocu or Elektrotanya.
Quick Support: Check the BioSystems Global site for general maintenance guides and videos. ⚙️ Core Technical Specifications BTS User Manual | PDF | Absorbance | Calibration - Scribd
BioSystems BTS-350 is a semi-automatic chemistry analyzer that uses advanced LED optical technology for clinical diagnostics. The user manual provides instructions for operating the instrument, including maintenance of its flow cell and programming of various analytical techniques. Medical EXPO Core Manual Content & Operations Startup & Main Menu
: The analyzer features a menu-driven interface accessible via a tactile membrane keyboard or touch screen, depending on the specific model version. Key menu options typically include Concentration, Absorbance, Utilities, Configuration, and Programming. Aspiration & Fluidics
: It uses a continuous flow system with an integrated peristaltic pump. Sipping volumes can be programmed from Reading Modes
: The analyzer supports several measurement methods, including: Fixed Time Differential Mode Quality Control (QC)
: The system can store the last 31 results for each test and generate Levey-Jennings charts Westgard rules for monitoring precision. Medical EXPO Essential Maintenance Tips Cleaning the Flow Cell
: It is critical to wash the flow cell with distilled water before use and after every individual test to prevent carry-over. Shutdown Procedure
: To safely shut down, first clean the aspiration system with distilled water, then navigate to the menu's "shutdown" button before physically turning off the machine. LED Advantage
: The LED light source is designed to be maintenance-free with a virtually unlimited lifetime, reducing frequent bulb replacements common in older photometers. Lab Supply Group SEMI-AUTOMATIC ANALYZER BTS-350 - BioSystems S.A.
BioSystems BTS-350 User Manual an essential technical resource for operating one of the few semi-automatic analyzers on the market powered entirely by LED optics Manual Overview & Structure
The manual is structured to guide laboratory technicians through the complete lifecycle of the device, from installation to advanced maintenance. Key sections include: System Components: Detailed descriptions of the peristaltic pump-based suction system thermostation system (25–40°C), and the patented LED optical system Operating Methods:
Step-by-step instructions for utilizing the 150 pre-programmed techniques, which cover end-point, kinetics, differential, and turbidimetric assays Quality Control Management: Guidance on setting up Levey-Jennings charts and applying Westgard rules for the last 31 stored results per test. Maintenance & Troubleshooting: biosystems bts 350 user manual
Critical procedures for cleaning optical components (filters, lenses, photodiodes) and managing common issues like battery pack failures peristaltic pump step losses Technical Capabilities Highlighted
The BioSystems BTS-350 is a high-performance semi-automatic analyzer designed for clinical chemistry and enzymatic analysis. The user manual serves as the essential roadmap for laboratory technicians to ensure precision, safety, and longevity of the device. Key Sections of the Manual
The manual is structured to take a user from initial unboxing to advanced diagnostic troubleshooting.
Installation & Setup: Guidance on voltage requirements, environmental conditions, and initial calibration.
Optical System: Details on the high-quality interference filters and the halogen lamp specifications.
Programming: Step-by-step instructions for entering new techniques and managing the 150 programmable channels.
Operational Modes: Explanations for flow-cell usage versus cuvette readings.
Maintenance: Daily and weekly cleaning protocols to prevent protein buildup and ensure optical clarity. Technical Features to Know
Understanding the hardware capabilities described in the manual helps maximize the unit's efficiency.
Thermal Control: The Peltier system maintains temperatures at 25°C, 30°C, and 37°C.
Data Management: The manual explains how to utilize the internal printer and RS-232 port for LIS integration.
Quality Control: Instructions on using the built-in QC software, including Levey-Jennings charts. 💡 Pro Tip for Longevity
Always follow the "Shut Down" procedure in the manual. This initiates a specialized washing cycle that protects the flow cell from staining, which is the most common cause of reading errors. Safety and Troubleshooting
The manual categorizes alerts to help users distinguish between minor user errors and hardware failures. 🔧 Biosystems BTS 350 – Quick Reference &
Error Codes: A lookup table for common codes like "Lamp Low" or "Pump Error."
Fluidics: Detailed diagrams for replacing the peristaltic pump tubing.
Biological Safety: Best practices for handling waste and disinfecting the aspiration needle. If you are looking for a digital copy of the manual,
A quick-start guide for a specific test (like Glucose or Cholesterol)? A maintenance checklist for daily lab logs?
Guide to the BioSystems BTS-350: Operation and Maintenance The BioSystems BTS-350 is a staple in clinical laboratories worldwide. Known for its durability and "workhorse" reputation, this semi-automatic analyzer is designed to handle a wide range of clinical chemistry and turbulence assays.
Whether you are a laboratory technician setting up a new unit or a manager ensuring compliance, understanding the core components of the user manual is essential for accurate diagnostics. 1. System Overview and Technical Specifications
The BTS-350 features a high-performance optical system. Unlike many entry-level analyzers that use standard filters, the BTS-350 utilizes a LED configuration that covers the entire range of routine clinical chemistry. Light Source: LEDs (long-lasting, low heat generation). Wavelengths: 340, 405, 505, 535, 560, 600, 635, and 670 nm.
Thermostatic System: A Peltier effect controller maintains the flow cell at 25°C, 30°C, or 37°C.
Memory: Capable of storing up to 150 techniques and 2,000 results. 2. Initial Setup and Installation
Before running your first test, ensure the unit is placed on a level, vibration-free surface away from direct sunlight.
Powering On: Connect the unit to a stabilized power source. The BTS-350 performs an automatic self-check of the optical and mechanical systems.
Priming the System: Use distilled water to prime the aspiration system. This ensures no air bubbles are trapped in the flow cell, which is the most common cause of "noisy" readings.
Thermal Equilibrium: Allow the unit 10–15 minutes to reach the programmed temperature (usually 37°C for most enzymes). 3. Programming and Running Assays
The user interface is menu-driven. To program a new technique: The alphanumeric keys (0-9, A-Z): Used for programming
Select Calculation Mode: Choose from End Point, Kinetic, Fixed Time, or Differential.
Input Parameters: Enter the wavelength, aspiration volume, and factor (or standard concentration).
Calibration: Always run a fresh standard or calibrator when switching reagent lots. 4. Routine Maintenance (The "Golden Rules")
To keep your BTS-350 running for a decade or more, follow these maintenance steps:
Daily: Wash the flow cell with distilled water after every work session. Never leave reagents or serum sitting in the tubing overnight.
Weekly: Perform a deep clean using a specialized laboratory detergent (like BioSystems Bio-Set) to remove protein buildup.
Monthly: Check the aspiration volume. If the volume is inconsistent, inspect the peristaltic pump tubing for wear or "memory" flat spots. 5. Troubleshooting Common Error Codes
"Low Signal": Usually indicates a dirty flow cell or a failing LED. Try an intensive cleaning cycle first.
"Temperature Out of Range": The Peltier element may be struggling. Ensure the back of the machine has at least 10cm of clearance for airflow.
"Aspiration Error": Check for a blockage in the intake needle or a leak in the peristaltic pump tubing. Conclusion
The BioSystems BTS-350 remains a gold standard for semi-automatic analysis because of its reliability. By following the manual’s guidelines on flow cell hygiene and temperature stability, laboratories can ensure precision in every patient result.
Here’s a useful, concise addendum or quick-reference insert related to the Biosystems BTS 350 user manual. This piece addresses a common gap in many lab manuals: daily troubleshooting & maintenance log combined with a sample-to-result checklist.
The user manual dedicates a full visualization to the BTS 350’s membrane keypad. Understanding these keys is crucial:
A frequently overlooked detail in the manual is the "Printer" function. The integrated thermal printer requires specific paper rolls. Using standard paper can damage the print head.
| Display | Meaning | Action |
|---------|---------|--------|
| FAULT | Sensor failure or missing | Remove/replace sensor |
| CAL ERR | Calibration failed | Repeat cal with fresh gas |
| BATT LOW | Battery voltage low | Replace batteries immediately |