Biosystems Bts 350 User Manual May 2026

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 analyzer designed for clinical chemistry and turbidimetry. It is known for its durable LED-based optical system and low maintenance requirements. Bions Medical Systems Key Features & Capabilities Innovative LED Optical System biosystems bts 350 user manual

: Utilizes 8 high-intensity LEDs (340, 405, 505, 535, 560, 600, 635, and 670 nm) plus one free position for optional filters. These LEDs provide a practically unlimited lifetime and low energy consumption. Flexible Measurement Modes : Supports multiple analysis methods, including: End-point (monochromatic/bichromatic) Kinetics and Fixed Time Absorbance and Differential Mode Precise Fluidic & Temperature Control Sipping Volume

: Programmable aspiration from 100 µL to 5 mL using a stepper motor-driven peristaltic pump. Thermostat System

: A Peltier-controlled system maintains temperatures between 25°C and 40°C in 1°C increments. Extensive Data Management

: Stores up to 2,000 patient results and allows for 150 pre-programmed techniques. Quality Control The Calibration Process (Step-by-Step)

: Includes internal QC with Levey-Jennings charts and Westgard rules for tracking accuracy over time. User-Centric Design Display & Interface

: Features a backlit graphic LCD screen (320x240 pixels) and a tactile membrane keyboard. Built-in Printer

: An internal thermal printer allows for immediate hard-copy results. Portability & Power

: Compact 4 kg frame with an optional battery pack providing up to 2 hours of backup in case of power failure. Technical Specifications Specification Wavelength Range 340–670 nm Photometric Range 0 to 3.5 Absorbance Flow Cell Volume Connectivity USB and RS-232 serial ports for PC/LIMS data transfer Dimensions 420 x 350 x 216 mm programming a new technique on the BTS-350? BTS-350 Semi-Automatic Analyzer Specs | PDF - Scribd Find Fresh Air: Turn the unit on in

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 Calibration Process (Step-by-Step)

  1. Find Fresh Air: Turn the unit on in a clean, fresh air environment. Let it run for 2 minutes.
  2. Enter Calibration Mode:
    • Locate the "Cal" or "Mode" button.
    • Press and hold the button for roughly 5 seconds until the unit beeps or the display prompts "Calibration?" or shows a countdown.
    • Some older units require pressing the 'Zero' button while in fresh air.
  3. Zeroing:
    • The unit will ask to "Zero" or "Fresh Air Cal."
    • Select Yes (usually by pressing the power or mode button).
    • The O2 reading should lock to 20.9, and others to 0.
  4. Span Calibration (Applying Gas):
    • Screw the regulator onto the gas cylinder.
    • Attach the calibration cup to the sensors.
    • Wait for the unit to prompt "Apply Gas" (or initiate the flow if the unit auto-detects pressure).
    • Open the regulator valve. Gas will flow over the sensors.
  5. Wait:
    • The numbers will rise. Do not move the unit.
    • When the readings match the concentration listed on the gas cylinder bottle (e.g., 25 ppm CO), the screen will flash or beep.
  6. Complete:
    • Turn off the gas. Remove the cup.
    • The unit will save the settings and return to normal monitoring mode.

Chapter 1: Unpacking and Installation (As per the Manual)

The first section of the official Biosystems BTS 350 user manual details the installation environment. According to the specifications:

Tip from the manual: Before powering on, ensure the drain bottle (for waste) is empty and the aspiration probe is clean. A common mistake is forgetting to remove the transport lock from the peristaltic pump.

What You Need