Model | LRD 01 | LRD 325 | LR 325/01 | LR 325/001 | TetraCon325 | TetraConDU/T | |
Ref. No. | 302220, 302222 | 302225, 302229 | 301961 | 301962 | 301960, 301970, 301971 | 301252 | |
Measuring principle | 2 electrodes measuring cell | 4 electrodes measuring cell | 2 electrodes measuring cell | 4 electrodes measuring cell | |||
Measuring Range | 0.001 µS/cm ... 200 µS/cm | 1 µS/cm ... | 0.001 µS/cm ... 200 µS/cm | 0.0001 µS/cm ... 30 µS/cm | 1 µS/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 | K = 0.778 cm-1 | |
Resolution | Depends on measuring range | ||||||
Temperature sensor | Integrated NTC | ||||||
Temperature Measurement | 0 °C ... +130 °C | 0 °C ... +100 °C | -5 °C ... 80 °C | 0 °C ... 60 °C | |||
Maximum pressure | 14 bar (at 20 °C) | 10 bar (at 20 °C) | 2 bar | ||||
Electrical Connection | Integrated PU connection cable with 7-pole screw plug (IP 65) | Integrated cable mit 8-pole plug | 8-pole socket for cable KKDU 325 | ||||
Mechanical | Shaft | Stainless steel 1.4571 | Epoxy | POM | |||
Kable gland | Brass, nickel-plated | €” | €” | €” | €” | ||
Connection head | €” | €” | POM | €” | |||
Electrodes | Stainless steel 1.4571 | Graphite | Stainless steel 1.4571 | Graphite | |||
Protection Rating | IP65 | IP68 | IP65 | ||||
(when connected) | (Measuring cell until immersion length) | ||||||
Weight (without cable) | Approx. 350 g | Approx. 300 g | Approx. 135 g | Approx. 280 g | Approx. 135 g | Approx. 170 g | |
Warranty | 2 years on defects in quality according to § 10 terms of conditions |
Electrode body material | metal |
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Electrode connector | Special |