Knick Elektronische 
Multi meter Portavo 904 X Multi

Multi meter Portavo 904 X Multi

Multi meter Portavo 904 X Multi

The world's only portable device for liquid analysis with ATEX approval for measurements up to Zone 0/1. Ideal for applications in the process industry. For the first time, Portavo enables direct on-site testing of process measuring points. It is compatible with almost all analog and Memosens process sensors. Memosens sensors with different parameters can be checked without changing the sensor cable.
  • The new MemoLog function allows the user to log calibration data from various Memosens measuring points, which can then be easily transferred to a computer via the standard USB connection. The Paraly SW 112 software enables user-friendly management of all recorded data
  • A sensor quiver protects the sensor from damage and drying out
  • The high-performance polymer housing ensures low water absorption and high impact resistance
  • Over 1000 hours of measurement with a single set of batteries (4 x AA)
  • Data logger with 5000 values
  • The mineral glass display is perfectly readable even after years
  • The world's only portable device for liquid analysis in hazardous locations
pH/mV input (analogue):

-2 to 16 (<0.01)
-1300 to 1300 (<1% meas. val.,<0.3mV/K)
Temperature input:
Temperature with NTC 30 kO:
Temperature with Pt 1000:

-20 to +120°C (<0.2K)
-40 to +250°C (<0.2K)
Memosens input (ISFET):
Temperature range:

-2.000 to +16.000 (<0.01)
-2000 to +2000 (<1% meas. val.,<0.3mV/K)
-50 to +250°C (<0,2K)
Memosens input, Redox:
Temperature range:

-2000 to +2000 (<1% meas. val.,<0.3mV/K)
-50 to +250 °C (<0.2K)
Conductivity measuring range:0.001μS/cm (c<0.05cm-1)
0.01μS/cm (c=0.05 to 0.2cm-1)
0.1μS/cm (c>0.2cm-1)
0 to 1999mg/l
0.0 to 45.0g/kg
00.00 to 99.99MO x cm
0.00 to 9.99 (w/w) %
Conductivity input, Memosens:
Measuring range Sensor SE 215 MS:

10μS/cm to 20mS/cm
Conductivity input:
Temperature compensation:

Linear 0 to 20%/K, ref. temp. adjustable
0 to 120 °C
Memosens input, oxygen (optical):

0.000 to 1000.0%
000μg/l to 100.00mg/l
Partial pressure:
Temperature measuring range:
0.0 to 2000mbar
-20 to+150°C
Power supply:
IP code acc. to DIN EN 60529:
4 x AA
IP66/67 with pressure compensation
 TypePKCat. No.
904 X Multi19.774 716

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