User manual HANNA INSTRUMENTS HI 981409

[. . . ] These instruments are in compliance with the directives EN 50081-1 and EN 50082-1. FUNCTIONAL DESCRIPTION Range Resolution SPECIFICATIONS TDS ­ HI 981409 0 to 1999 mg/L (ppm) 1 mg/L (ppm) ±2% f. s. Automatic 5 to 50°C (41 to 122°F) Automatic at 1500 ppm 2 x AA alkaline type (300 hours approx. continuous use) Auto-shut off after 5 minutes of non-use 86 x 94 x 33 mm (3. 4 x 3. 7 x 1. 3") meter only 150 g (5. 3 oz. ) meter only Accuracy (@ 25°C/77°F) Typical EMC Deviation Temperature Compensation Calibration Batteries PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully. [. . . ] They also float so that they can be quickly retrieved if accidentally dropped in the tank. The HI 1220 rugged EC/TDS probe incorporates a fast responding temperature sensor. This means that readings are quickly compensated for the temperature effect and they are accurate every time. The probe can be simply replaced and the rubber sleeve protects the DIN connector against humidity and spills. The probe measures 25 cm (10") and can even be used to mix the fertilizer solution. · · · · · Ideal for hydroponics and greenhouses Waterproof housing floats for quick retrieval Automatic calibration Auto switch off for longer battery life Fertilizer mixer (long and rugged probe) EC Range Resolution ­ HI 981410 0. 00 to 10. 00 mS/cm (EC) 0. 01 mS/cm (EC) ±2% f. s. Automatic 5 to 50 °C (41 to 122 °F) Automatic at 5. 00 mS/cm 2 x AA alkaline type (300 hours approx. continuous use) Auto-shut off after 5 minutes of non-use 86 x 94 x 33 mm (3. 4 x 3. 7 x 1. 3") meter only 150 g (5. 3 oz. ) meter only Accuracy (@ 25°C/77°F) Typical EMC Deviation 1. Molded eye Liquid Crystal Display ON/OFF and Calibration button DIN connector Protective sheath HI 1220 EC/TDS probe air-vent hole Temperature Compensation Calibration Batteries Probe HI 1220 EC probe L: 240 mm with DIN connector Dimensions Weight OPERATIONAL GUIDE EC/TDS PROBE CONNECTION & MAINTENANCE In order to protect EC/TDS against vapors and humidity, the DIN connector is shielded behind a waterproof sheath. Connect the HI 1220 EC/TDS probe to the DIN connector and then slide the protective sheath back up all the way up to the EC/TDS casing. To ensure maximum protection, make sure the connector is completely covered. · If the meter remains for a long time on the shelf and is not used, it is recommended to clean the internal sensitive pins with alcohol. Immerse the tip of the probe up to the air-vent hole in alcohol for a few minutes. · After use, clean the probe with tap water, dry it and put it away. · For cleaning after prolonged use, immerse the probe in HI 7061 Cleaning Solution for ½ hour. BATTERY REPLACEMENT When the batteries are weak, EC and TDS display the warning symbol "Eb". will To replace the batteries, open the back panel with the help of a screwdriver and replace both AA type batteries, paying attention to their polarity. Batteries should only be replaced in a non hazardous area using alkaline batteries. · For TDS immerse the probe in the HI 70442P and for EC in the HI 70039P calibration solution. Stir gently and wait for approximately 20 seconds to auto-confirm the reading. [. . . ] · Press and hold the ON/OFF button for approximately 3 seconds. The display will start blinking "1500 ppm" for HI 981409 and "5. 00 ms" for HI 981410 to confirm that you have entered the calibration mode. ACCESSORIES HI 1220 EC/TDS probe L: 240 mm (10") with DIN connector and sensor for Automatic Temperature Compensation incorporated 5. 00 mS/cm (EC) calibration solution, 20 mL sachet (25 pcs) 1500 ppm (TDS) calibration solution, 20 mL sachet (25 pcs) 1500 ppm (TDS) calibration solution, 230 mL bottle 5. 00 mS/cm(EC) calibration solution, 230 mL bottle Probe cleaning solution, 230 mL bottle TAKING MEASUREMENTS · Turn the meter on. · Immerse the tip 5 cm (2") of the EC or TDS probe in the sample. [. . . ]