Microbial enumeration system MD500 Online

Product overview
The MD500 Online Microbial Detection Analyzer combines laser-induced fluorescence and Mie scattering with a 405 nm laser source to deliver continuous, non-destructive monitoring of microorganisms in water. It detects particles down to 0.1 μm and reports counts in AFU/mL for real-time contamination assessment.

Key features

• Real-time monitoring: continuous measurement with response time ≤2 min for rapid trend detection.
• High-precision detection: individual microorganism counting (AFU/mL) and live contamination readout.
• Sensitive detection: minimum particle size 0.1 μm; detection limit 1 AFU.
• Non-destructive measurement: preserves microorganisms for tandem analysis with other systems.
• Flexible integration: multiple outputs including 4–20 mA (configurable), analog channels, Ethernet (RJ45)/Wi‑Fi, Modbus TCP, USB.
• Alarm management: audible/visual interface alerts, configurable thresholds and remote alarm outputs.
• Process compatibility: flow rate 1.5–30 mL/min, sample temperature 5–90 °C, inlet/outlet 1/8" (3.2 mm) OD.

Applications
Designed for continuous microbial monitoring of purified water (PW), ultrapure water (UPW) and water for injection (WFI) in pharmaceutical production. Also suitable for semiconductor fabs, food & beverage production lines, research institutions and chemical quality-control labs where strict microbial control is required.

Technical specifications

• Measurement range: 0–10,000 AFU/mL
• Minimum detection size: 0.1 μm
• Detection limit: 1 AFU
• Response time: real-time (≤2 min)
• Flow rate: 1.5–30 mL/min
• Sample temperature range: 5–90 °C
• Sample connections: 1/8" (3.2 mm) OD inlet/outlet
• Ambient operating range: 0–50 °C, ≤80% RH
• Continuous operation capable
• Weight: 35 kg; Dimensions: 50 × 32 × 60 cm
• Power: 100–240 VAC, 50/60 Hz, 5 A
• Data outputs: 4–20 mA (configurable), analog channels, Ethernet (RJ45)/Wi‑Fi, Modbus TCP, USB