Fax:
+44 (0)115 986 8875
Web:
Tel:
+44 (0)115 9003 600
Filtertechnik
1 Central Park, Lenton Lane, Nottingham, NG7 2NR
Registered in England No: 03969985 VAT No: 760 821 731
Certification No. UK002838
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Density and Viscosity Sensor
The density and viscosity sensor uses a piezo electric device for continuous determination of fluid
density and viscosity.
To ensure accurate density and viscosity readings the fluid should be clean and maintained at a
steady temperature similar to the unit. Contaminant in the form of water or solids may cause higher
than expected readings, while an aerated fluid sample will cause lower than expected readings.
Specifications
Specification
Details
Accuracy
Density
–
2%
Viscosity
–
5%
Measurement Range
Density
–
0.6 g/cm³ - 1.3 g/cm³
Viscosity
–
25 - 400mPa·s
Resolution
Density
–
0.001g/cm³
Viscosity
–
0.1mPa·s
Working Voltage
DC 9V‐32V
Power Consumption
< 30mA @ 24Vdc
Operating temperature
0°C to 70°C (0°C to 50°C for diesel)
Operating pressure
10 bar
Applicable standards
ASTM1657, EN61326-1,
EN61326‐2‐3, ICES‐003 B
Density
The unit displays density as kg/m³, which is the same as g/cm³. To convert this to a units such as kg/l
divide the value by 1000.
Viscosity
The unit displays dynamic viscosity as mPa.s (millipascal-second). This is the same as cP (centipoise)
e.g. 100 mPa.S = 100 cP.
To convert from dynamic to kinematic viscosity such as centistokes, the dynamic viscosity value must
be divided by the fluid density.
Example:
If the unit is showing a viscosity of 150 mPa.s and density of 886 kg/m³ then, 150 / 0.886 = 169.3 cSt
