TetraCon® 325 Universal Conductivity Measuring Cells

Overview Specifications Industries & Applications ;
Overview

Overview

Product Features
  • Four electrode conductivity cells for universal applications 
  • Conductivity measuring cells with graphite electrodes with four electrodes for standard measurements in aqueous solutions in the field and in the lab 
  • No measuring errors due to cable, polarization effects or changes of the  electrical boundary field 
  • Highest precision and linearity 
  • Long-term stable cell constant thanks to graphite electrodes 

The WTW TetraCon® 4-electrode conductivity cells set a new standard for conductivity measurements. In comparison with conventional measuring cells with 2 electrodes, the TetraCon® 325 offers numerous technical advantages. The electrode was designed to optimize the
cell geometry providing you with the highest accuracy possible. Long-term cell constant stability is a result of high-quality abrasion-resistant graphite construction. The design also allows for a very shallow immersion depth with a virtually unbreakable robust epoxy body. Other design features mean that measurements are not affected by cable influences, polarization effects or contact with any surfaces. All TetraCon® cells come with a built-in temperature sensor to automatically compensate the output to your sample's temperature. The automatic resistance compensation feature provides you with accurate measurements even with a dirty electrode.

Applications

The TetraCon 325 Conductivity Cells are ideal for monitoring ground water, rivers, lakes, streams, swimming pools, and industrial water applications including juices, electroplating, and pharmaceutics.

Available Versions

TetraCon® 325: 1.5 m cable and waterproof plug SKU: 301960
TetraCon® 325-3: 3 m cable and waterproof plug SKU: 301970
TetraCon® 325-6: 6 m cable and waterproof plug SKU: 301971
TetraCon® 325-10: 10 m cable and waterproof plug SKU: 301972
TetraCon® 325-15: 15 m cable and waterproof plug SKU: 301973
TetraCon® 325-20: 20 m cable and waterproof plug SKU: 301974

Specifications

Specifications

 
 
Specifications
LRD 01
LRD 325
LR 325/01
LR 325/001
TetraCon® 325
TetraCon® DU/T
Model
LRD 01
LRD 325
LR 325/01
LR 325/001
TetraCon® 325
Order No.
302220, 302222
302225, 302229
301961
301962
301960, 301970, 301971
Measuring principle
2 electrodes measuring cell
4 electrodes measuring cell
2 electrodes measuring cell
2 electrodes measuring cell
4 electrodes measuring cell
Measuring Range
0.001 µS/cm ... 200 µS/cm
1 µS/cm ... 2 S/cm
0.001 µS/cm ... 200 µS/cm
0.0001 µS/cm ... 30 µS/cm
1 µS/cm ... 2 S/cm
Cell constant
0.1 cm-1, ±2%
0.475 cm-1, ±1.5%
K = 0.1 cm-1
K = 0.01 cm-1
K = 0.475 cm-1
Resolution
Depends on measuring range
Depends on measuring range
Depends on measuring range
Depends on measuring range
Depends on measuring range
Temperature sensor
Integrated NTC
Integrated NTC
Integrated NTC
Integrated NTC
Integrated NTC
Temperature Measeurement
0 °C ... +130 °C
0 °C ... +100 °C
-5 °C ... 80 °C
-5 °C ... 80 °C
-5 °C ... 80 °C
Maximum pressure
14 bar (at 20 °C)
10 bar (at 20 °C)
2 bar
2 bar
2 bar
Electrical Connection
Integrated PU connection cable with 7-pole screw plug (IP 65)
Integrated PU connection cable with 7-pole screw plug (IP 65)
Integrated cable mit 8-pole plug
Integrated cable mit 8-pole plug
Integrated cable mit 8-pole plug
Mechanical Shaft
Stainless steel 1.4571
Stainless steel 1.4571
Stainless steel 1.4571
Stainless steel 1.4571
Epoxy
Mechanical Kable gland
Brass, nickel-plated
Brass, nickel-plated
-
-
-
Mechanical Connection head
-
-
POM
POM
POM
Mechanical Electrodes
Stainless steel 1.4571
Graphite
Stainless steel 1.4571
Stainless steel 1.4571
Graphite
Mechanical Protection Rating
IP65 (when connected)
IP65 (Measuring cell until immersion length)
IP68 (Sensor and cable)
IP68 (Sensor and cable)
IP68 (Sensor and cable)
Weight (without cable)
Approx. 350 g
Approx. 300 g
Approx. 135 g
Approx. 280 g
Approx. 135 g
Warranty
2 years on defects in quality according to § 10 terms of conditions
2 years on defects in quality according to § 10 terms of conditions
2 years on defects in quality according to § 10 terms of conditions
2 years on defects in quality according to § 10 terms of conditions
2 years on defects in quality according to § 10 terms of conditions
Industries & Applications

Industries & Applications

Recommended Industries and Applications

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