Optical dissolved oxygen sensor Hamilton
Modelo: VisiFerm DO Arc
The Visi family of sensors have a blue LED on the sensor shaft and an oxygen sensitive dye (phosphor) attached to a glass window in the replaceable sensor cap. The blue light excites the phosphor and then a photodetector on the sensor shaft detects the red light returning from the phosphor. A microprocessor in the sensor correlates the emitted blue light and the measured red light with the partial pressure of oxygen. This measurement can be output as a simulated nA signal, 4-20 mA, or a digital protocol.
VisiFerm is the first 12mm optical dissolved oxygen sensor with integrated optoelectronics, which has the full functionality of a self-diagnostic measuring device. It is steam sterilizable, autoclavable and CIP compliant. VisiFerm DO requires less maintenance than a classic oxygen sensor, as it does not have a mechanically sensitive membrane or corrosive electrolyte.
Product Specifications
a-length 120 mm
Measurement Principle: Oxygen dependent luminescence quenching
Measuring Range: 4 ppb to 25 ppm (DO) 0 to 62.85 %-vol or 0 to 300 %-sat
Accuracy at 25 °C: 1 ± 0.05 %-vol: 21 ± 0.2 %-vol; 50 ± 0.5 %-vol
Membrane / Cap ODO Cap H2
Electrolyte None
Oxygen Consumption None
Required Flow None
Response Time t98% < 60 s at 25 °C
Temperature Sensor NTC 22 kOhm
Drift at Room Temperature < 1 % per week
Configurable Values DO: mbar; %-sat; %-vol; µg/l? mg/l? ppb? ppm? Temperature: °C
ATEX Approval No
Autoclavable Yes, max. Temperature 130 °C
CIP Yes
Steam Sterilizable Yes, max. Temperature 140 °C
Marca: Hamilton
+54 9 11 6713-8305
