301970 TetraCon® 325-3
4电极电导池,内置温度传感器,3米(9.8英尺)电缆和防水插头,池常数K=0.475 cm-1。
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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
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 plugModel
LRD 01
LRD 325
LR 325/01
LR 325/001
TetraCon® 325
TetraCon® DU/T
Order 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 ...
2 S/cm0.001 µS/cm ... 200 µS/cm
0.0001 µS/cm ... 30 µS/cm
1 µS/cm ...
2 S/cmCell 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
(Sensor and cable)IP65
(when connected)(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