Continued on next page 944 ƒxygen Meters Hand-held Meter SD 315 Oxi, Lovibond® The portable hand-held measuring instrument SD 315 Oxi meets the daily requirements for a robust and reliable instrument for the determination of dissolved oxygen in aqueous media. The well-known Clark oxygen sensor with integrated temperature probe enables immediate measurements without time-consuming run-in time (polarization time). The direct and comfortable operator guidance with all relevant configuration options facilitates the use of the measuring instrument in environment and laboratory. The hold function “freezes” stable measuring values on the display which simplifies data reading. The internal memory allows the storage of 1000 (manual logger) to 10000 data sets (auto logger). The data logger allows continuous monitoring of the measured values. In combination with the alarm function data monitoring becomes even more comfortable. The automatic switch-off is individually selectable from 1 to 120 min and increases the operating time of the devices. The waterproof housing according to IP67 and IP 65 with the protective armouring guarantees a safe operation in extreme ambient conditions. The flexible stand at the rear allows the unit to be set up or fastened to a belt. • Auto-hold function • Simple calibration against air or according to DIN EN ISO 5814 • Alarm function with adjustable limits • Automatic pressure and temperature compensation • Sensor status display in % after each calibration • Salinity correction • Battery status indicator • Data transfer and evaluation via software possible Scope of delivery in carrying case: device in protective armouring incl. electrode holder, galvanic oxygen sensor, refill electrolyte, spare membrane, calibration bottle with sponge, 2 × AAA batteries and user manual Technical data: Measuring principle: Galvanic oxygen sensor Measuring range: O2-concentration: 0.0 – 70.0 mg/l O2-saturation: 0.0 – 600.0% Temperature: 0.0 – 50.0°C Display: Backlit LCD display Power supply: 2 × AAA-batteries, Interface cable with USB connection Data logger: Manual logger: 1000 data sets (single value by keystroke) Auto. logger: 10000 data sets (cyclic, time interval: 1 – 3600 s) Auto-Off: yes Auto. temperature compensation: yes Dimensions: 164 × 100 × 37 mm Weight: 302 g (incl. batteries and protective armouring) Protection class: IP 67 Conformity: CE, RoHS, WEEE Article Order No. SD 315 Oxi (set 1) 10 77 13151 Galvanic oxygen sensor, 2 m cable length SD 315 Oxi (set 2) 10 77 13152 Galvanic oxygen sensor, 10 m cable length SD 315 Oxi (set 3) 10 77 13153 Galvanic oxygen sensor, 30 m cable length Portable Hand-held Meter SD 400 Oxi L with Datalogger, Lovibond® The portable SD 400 Oxi L handheld meter enables the determination of dissolved oxygen based on the highly precise optical luminescence technology. As a true all-rounder, the SD 400 Oxi L is capable of determining oxygen in various types of water. This is possible thanks to functions such as automatic temperature and pressure compensation and salinity correction, which allows each measurement to be adjusted to the water sample. The integrated SD card contains the calibration data specific to each sensor as well as software for monitoring, storage and evaluation of measurement data. The advantages of optical oxygen determination compared to conventional methods are manifold and can be summarized at a glance: • Low-wear and low-maintenance due to the long-life membrane cap • Compliant for the BOD dilution method • Long-stability after the first calibration • Low calibration drift • No warm-up or polarization times necessary and therefore immediately ready for use • No electrolyte required, no additional effort and no hidden costs • No stirring required webcode WWSE2017 Measuring Systems Electrochemistry
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