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 Electronic measuring instrument

 

  conductivity measurement range

10 ... 2x10S/m on four ranges

  resolution of conductivity measurements

10 S/m for conductivities up to 19.99 pS/m
10 S/m for conductivities up to 199.9 pS/m
10 S/m for conductivities up to 1.999.9 nS/m
10 S/m for conductivities up to 19.99 nS/m

  uncertainty of conductivity measurements

±1 digit ±1% of indicated value

  relative permittivity measurement range

0 ... 5

  resolution of permittivity measurements 

0.001 for relative permittivities up to 1.999
0.01 for relative permittivities from 2.00 to 5.00

  uncertainty of permittivity measurements

±1 digit ±2 % of indicated value

  calibration of the test cell 

simple on-site adjustment for test cells from 50 to 70 pF

  frequency of the measurement voltage

0.5 Hz

  amplitude of the measurement voltage

±30 V square wave with no dc part

  optional analogue outputs

one for conductivity, one for relative permittivity

  analogue outputs voltage span

0 ... 2 V for 0 to 100% of chosen range, short circuit proof

  weight

2.6 kg

  size

290 x 255 x 115 (width x depth x height in mm)

  power supply in the field

four batteries type AA alcaline for several hours of operation

  power supply in the lab

universal mains adapter 100 ... 240 Vac 50/60 Hz delivering 6V DC

  temperature (use)

0 ... 35șC

  temperature (stock)

-10 ... 50șC

  pressure

70 ... 106 kPa

  humidity

5 ... 80% non condensing

  acceleration 

< 2 g

 Test Cell

 

  required amount of liquid

210 ml

  vacuum capacitance

60 pF

  capacitance drift with temperature

< 50ppm/șC

  electrode gap

1.5 mm

  material

stainless steel

  electrical connection

two standard 50 BNC plugs

  temperature measurement

glass thermometer or electronic thermometer

  weight

1.2 kg

  size

122 x 82 (height x diameter in mm)

  cables

one BNC-BNC cable, 1m, red, for application of the excitation
one BNC-BNC cable, 1m, black, ultra low noise for current measurement

ALFF ENGINEERING, Gomweg 7, CH- 8915 Hausen am Albis
phone: +41 44 77 66 77 6, fax: +41 44 77 66 77 7, e-mail: info@alff-engineering.ch