WTW: TetraCon 325 – Universal conductivity measuring cells

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WTW: TetraCon 325 – Universal conductivity measuring cells

Conductivity measuring cells with graphite electrodes with four electrodes for standard measurements in aqueous solutions in the field and in the lab

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Conductivity measuring cells with graphite electrodes with four electrodes for standard measurements in aqueous solutions in the field and in the lab

• Conductivity measuring cells with graphite electrodes with four electrodes for standard measurements in aqueous solutions in the field and in the lab
• Highest precision and linearity
• Long-term stable cell constant thanks to graphite electrodes

Four -electrode conductivity cell with built-in temperature sensor, IP 68 (2 bar), cell constant K = 0.475 cm-1

• TetraCon® 325: 1.5 m cable and waterproof plug
• TetraCon® 325-3: 3 m cable and waterproof plug
• TetraCon® 325-6: 6 m cable and waterproof plug
• TetraCon® 325-10: 10 m cable and waterproof plug
• TetraCon® 325-15: 15 m cable and waterproof plug
• TetraCon® 325-20: 20 m cable and waterproof plug

The electrodes do not require any maintenance except occasional cleaning and are therefore especially economical.

Specifications

ModelLRD 01LRD 325LR 325/01LR 325/001TetraCon® 325TetraCon® DU/T
Order No.302220, 302222302225, 302229301961301962301960, 301970, 301971301252
Measuring principle2 electrodes measuring cell4 electrodes measuring cell2 electrodes measuring cell4 electrodes measuring cell
Measuring Range0.001 µS/cm … 200 µS/cm1 µS/cm …
2 S/cm		0.001 µS/cm … 200 µS/cm0.0001 µS/cm … 30 µS/cm1 µS/cm …
2 S/cm
Cell constant0.1 cm-1, ±2%0.475 cm-1, ±1.5%K = 0.1 cm-1K = 0.01 cm-1K = 0.475 cm-1K = 0.778 cm-1
ResolutionDepends on measuring range
Temperature sensorIntegrated NTC
Temperature Measurement0 °C … +130 °C0 °C … +100 °C-5 °C … 80 °C0 °C … 60 °C
Maximum pressure14 bar (at 20 °C)10 bar (at 20 °C)2 bar
Electrical ConnectionIntegrated PU connection cable with 7-pole screw plug (IP 65)Integrated cable mit 8-pole plug8-pole socket for cable KKDU 325
MechanicalShaftStainless steel 1.4571EpoxyPOM
Kable glandBrass, nickel-plated————
Connection head——POM—
ElectrodesStainless steel 1.4571GraphiteStainless steel 1.4571Graphite
Protection RatingIP65IP68
(Sensor and cable)		IP65
(when connected)
(when connected)(Measuring cell until immersion length)
Weight (without cable)Approx. 350 gApprox. 300 gApprox. 135 gApprox. 280 gApprox. 135 gApprox. 170 g
Warranty2 years on defects in quality according to § 10 terms of conditions

 

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