All-in-one Solution for Optical Oxygen Measurement - Portavo 907 Multi Oxy

- High-resolution color graphic display
- Transflective and sunlight readable
- Li-ion battery
- Optical oxygen sensor
- Integrated pressure measurement for compensating air pressure fluctuations
- Micro USB port and Paraly SW 112 software

  • Model Number: Portavo 907 Multi Oxy
  • Data Sheet: Date Sheet File
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  • All-in-one Solution for Optical Oxygen Measurement
  • All-in-one Solution for Optical Oxygen Measurement
  • All-in-one Solution for Optical Oxygen Measurement
  • All-in-one Solution for Optical Oxygen Measurement
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Product Specification

Portavo 907 Multi Oxy

The all-in-one solution for optical oxygen measurement. Multiparameter device for digital pH, conductivity and oxygen sensors with Memosens technology


The only portable device for all Memosens parameters. The powerful Li-ion battery can be charged in the device via USB. The clear network diagram provides an at-a-glance view of the sensor condition.

The data logger for up to 10,000 entries r­ecords measuring point, annotation, sensor ID, sensor serial number (Memosens), primary value, temperature, time stamp and device status.


User-friendly software

Portavo 907 proves that a high level of functionality and easy use are not mutually exclusive. It proceeds step by step through the calibration procedure. Technical terms are clearly explained in the context-­ sensitive help.


Portavo 907 Multi Oxy Optical Oxygen Measurement Facts
- High-resolution color graphic display 
- Transflective and sunlight readable
- Li-ion battery
- Optical oxygen sensor
- Integrated pressure measurement for compensating air pressure fluctuations
- Micro USB port and Paraly SW 112 software
- A sensor quiver protects the sensor from damage and drying out
- The high-performance polymer housing ensures low water absorption and high impact resistance
- Intelligent data logger with 10,000 entries and graphical representation
- IP 66/67 protection
- The mineral glass display is perfectly readable even after years


Comprehensive data logger
 The following logging types can be selected:
- Manual logging
- Time-controlled logging at a fixed interval
- Signal-controlled logging of measured value and temperature
- Combined time- and signal-controlled logging
- Threshold-controlled logging with pre-trigger


Portavo 907 Multi Oxy Optical Oxygen Measurement Specifications

Optical oxygen input










M12 socket for SE 340 sensor or Memosens sensors

OXY meas. ranges at 20 °C



Saturation 0.000 ... 200.0 %
Concentration 000 μg/l  20.00 mg/l
Partial pressure 0.0  1000 mbars

Response time


t90 < 30 s
t99 < 60 s
Measurement error Zero signal < 0.1 % full saturation
Measuring cycle Approx. 1 s
Measurement error < 0.1 % meas. val.
Temperature meas. range 0.0  50.0 °C
Measurement error Temperature ± 0.2 K

Sensor standardization





Automatic calibration in air, humidity adjustable
Zero calibration
Max. overpressure 2.5 bars

Immersion depth


min. 60 mm
max. 25 m

Storage Temperature input






Quiver
2 x 4 mm dia. for integrated or separate temperature detector

Measuring ranges


NTC 30  -20  +120 °C
Pt 1000 -40  +250 °C
Measuring cycle Approx. 1 s
Measurement error1,2,3) < 0.2 K (Tamb = 23 °C) TC < 25 ppm/K

Memosens pH input (also ISFET)




M8 socket, 4 pins, for Memosens lab cable and M12 socket, 8 pins

Display ranges



pH -2.000  +16.000
mV -2000  +2000 mV
Temperature -50  +250 °C

Memosens ORP input





M8 socket, 4 pins, for Memosens lab cable and M12 socket, 8 pins

Display ranges


mV -2000  +2000 mV
Temperature -50  +250 °C
Sensor standardization ORP calibration (zero adjustment)
Permissible calibration range ΔmV (offset)
-700  +700 mV

Sensor standardization

Operating modes



Calimatic buffer sets




Permissible calibration range



pH calibration
Calimatic Calibration with automatic buffer recognition
Manual Manual calibration with entry of individual buffer values
Data entry Data entry of zero and slope
Knick CaliMat Ciba (94) User defined
NIST technical HACH Mettler-Toledo
NIST standard Hamilton WTW techn. buffers
DIN 19267 Reagecon
Zero point 6 ... 8 pH
With ISFET: –750  +750 mV operating point (asymmetry)
Slope Approx. 74  104 %

Calibration timer*)

Sensoface


Interval 1  99 days, can be switched off
Provides information on the sensor condition
Evaluation of zero/slope, response, calibration interval

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