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Conductivity meter, bench, 703

Supplier: Knick
This bench top meter can be operated with either 2-electrode or 4-electrode sensors. In conjunction with the Knick ZU 6985 4-electrode sensor, the meter functions reliably over a wide conductivity range from < 1,00 µS/cm to > 1000 mS/cm.

  • Calibrated analog recorder output, galvanically isolated
  • Sensoface® function monitors the conductivity sensor and measuring equipment and provides information on sensor selection and handling
  • Automatic calibration with standard solutions
  • RS-232 interface for computer and printer
  • Simultaneous display of two measurement values; easy to read LED display
  • Leak-proof membrane keyboard, robust housing
  • Automatic switchover to 4-electrode or 2-electrode operation

Records of the parameter setting, calibration, and device diagnostics can be output directly to a printer. This provides users with comprehensive GLP-compatible documentation at the press of a key.

Delivery information: Supplied with power cord and instruction manual.


 

ORDER

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Description Pk VWR Catalog Number Quantity
Laboratory conductivity meter 703, without sensor 1 663-2101

Electrodes
Description Type Conductivity Cell constant Temp. Material Ø×L Connection For Pk VWR Catalog Number Quantity
SE 202, 2-pole sensor, with integrated temperature probe, incl. flow cell SE 202, 2-pole, integrated temperature probe 0,01...199,9 µS/cm 0,100 cm-1 ±2% –5...+100 °C Stainless steel 12×120 mm 8-pin Low conductivity solutions 1 665-0295
SE 204, 4-pole sensor, with integrated temperature probe SE 204, 4-pole, with integrated temperature probe 1 µS/cm...500 mS/cm 0,475 cm-1 ±1,5% –5...+100 °C Epoxy 15,3×120 mm 8-pin Natural waters, aqueous solutions, salinity determination 1 665-0297
ZU 6985, 4-pole sensor, with Pt 1000 temperature probe ZU 6985, 4-pole, with Pt 1000 temperature probe 0,001...1000 mS/cm 1,19 cm-1 ±1,0% –20...+100 °C Glass 16×110 mm Via adapter Laboratory applications 1 663-2111
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SPECIFICATIONS

Conductivity range 0 μS/cm - 2000 mS/cm
Conductivity resolution 0,001 µS/cm
Conductivity accuracy ±0,5% of meas. value. ±2 counts
Conductivity cell constant 0,001 - 199,9 cm⁻ₑ (adjustable)
Temperature range (°C) –50...+150
Temperature accuracy (°C) ±0,3 K
Temperature compensation Automatic (Pt 1000/NTC 30 kOhm) or manual
Reference temperature 20/25 °C
Display Alphanumer. 2 x 4-digit, 14-segment LED, character height 13 mm
Data logging capacity Automatic storage of cell constant and calibration procedure with time and date stamp, self-contained
Connections 2-electrode sensors with banana plug + special diode plug for 4-electrode sensors
Outputs RS 232
Power supply Power cord, 230 V –15 % +10 %, 48 - 62 Hz
W×D×H (mm) 244×255×95
Weight (kg) 2
Compliance IP 54, GLP

ACCESSORIES

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Accessories
Description Pk VWR Catalog Number Quantity
Attachable stand for different sensors (2×12 ±0,5 mm; 1×4 - 14 mm; 1×6 - 16 mm), ZU 6954 1 662-3510
Immersion stirrer ZU 6955, with stainless steel impeller, Ø 12 mm 1 662-3511
Matrix printer ZU0244, with Serial RS 232 port, for standard paper, 197×73×153 mm 1 663-2117
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