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Measuring Principle
The QCM-I unit is a high sensitivity mass sensor which measures the change in frequency of a quartz crystal resonator
Measurement Channels: 1-4
Frequency Range: 1-80 MHz
Working Temperature: 4° C to 80° C, stability ± 0.02° C
Flow Cell Volume: ~ 40 µl (typical with Ø14 mm crystals)
Typical Flow Rates: 0.01µl/min - 35ml/min with external syringe pump
Syringe size: 1-60 ml
Sample Volume: 1 to 2000 µl (depends on installed loop volume)
Wetted parts: PTFE, PEEK, SS, VITON or Kalrez
MEASUREMENT SENSITIVITY
Standard Resonance Frequency sensitivity: ~2 x 10-1 Hz
Standard Dissipation Sensitivity in Liquid: ~ 1 x 10-7
Mass Sensitivity in Liquid: ≤ 1 ng/cm2
SENSORS
Sensor Crystal: 5 MHz, AT-cut, modular sensor holder accommodates
either 14 mm or 1” inch diameter crystals
ELECTRICAL
Supply Voltage: DC power supply with universal input voltage from
100V to 240V AC & 50 to 60 Hz
