Operating manual TetraCon 325 TetraCon 325/C Standard conductivity cell ba55301e03 02/2005
TetraCon 325 / TetraCon 325/C Accuracy when going to press Copyright The use of advanced technology and the high quality standard of our instruments are the result of continuous development. This may result in differences between this operating manual and your instrument. Also, we cannot guarantee that there are absolutely no errors in this manual. Therefore, we are sure you will understand that we cannot accept any legal claims resulting from the data, figures or descriptions.
TetraCon 325 / TetraCon 325/C Contents List of contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.1 1.2 Structure and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Recommended fields of application . . . . . . . . . . . . . . . . . . . . . 12 2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview TetraCon 325 / TetraCon 325/C 1 Overview 1.1 Structure and function Structure 1, 2 3 4 5 1 Voltage electrode (inside, 2x) 2 Current electrode (ring, 2x) 3 Temperature sensor in a graphite enclosure 4 Shaft 5 Connection head 1.
TetraCon 325 / TetraCon 325/C 2 Cleaning Cleaning Caution Before cleaning, disconnect the sensor from the instrument. Cleaning A thorough cleaning is particularly recommended for measurements of low conductivities. Contamination Cleaning procedure Lime sediments Immerse in acetic acid for 5 minutes (volume share = 10 %) Fat/oil Clean with warm water that contains washing-up liquid After cleaning, thoroughly rinse with deionized water and recalibrate if necessary.
Technical data TetraCon 325 / TetraCon 325/C 4 General features Technical data Measuring principle Four-electrode measurement Cell constant 0.475 cm-1 ±1.5 % Temperature sensor integrated NTC 30 (30 kW/ 25 °C) Dimensions (in mm) 162.5 120.0 15.3 Weight Materials Connection cable Pressure resistance 21.7 17.5 approx.
TetraCon 325 / TetraCon 325/C Measurement conditions Storage conditions Characteristic data on delivery Technical data Conductivity measuring range 1 mS/cm ... 2 S/cm Temperature range -5 ... 80 °C (100 °C) Max. allowed overpressure 2 x 105 Pa (2 bar) Minumum depth of immersion 36 mm Maximum depth of immersion Entire sensor+cable (up to 80 °C) Sensor shaft only (=120 mm / up to 100 °C) Operating position any Recommended storing method in air Storage temperature 0 ...
Technical data 16 TetraCon 325 / TetraCon 325/C
