User manual HANNA INSTRUMENTS HI 93730

[. . . ] A flashing value higher than the maximum concentration readable (see specifications) indicates that the sample absorbs too much light, meaning that the concentration is too high. The cuvet is not inserted correctly and an excess ambient light is reaching the detector. If the cover is properly installed, then contact your dealer or the nearest Hanna Customer Service Center. [. . . ] If under warranty, report the model number, date of purchase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc. , Woonsocket, Rhode Island, 02895 , USA. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. The HI 93730 meter measures the molybdenum content in water and wastewater in the 0. 0 to 40. 0 mg/L (ppm) range. The meter uses an exclusive positive-locking system to ensure that the cuvet is in the same place every time it is placed into the measurement cell. The reagents are in powder form and are supplied in packets. The amount of reagent is precisely dosed to ensure maximum repeatability. Display codes aid the user in routine operations. The meters have an auto-shut off feature that will turn the instrument off after 10 minutes of non-use. Light Emitting Diode @ 470 nm Adaptation of the mercaptoacetic acid method. The reaction between molybdenum and the reagents causes a yellow tint in the sample Light Detector Silicon Photocell Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing Battery Type/Life 1 x 9 volt/40 hours Auto-Shut off After 10' of non-use Dimensions 180 x 83 x 46 mm (7. 1 x 3. 3 x 1. 8") Weight 290 g (10 oz. ). REQUIRED REAGENTS Code HI 93730A-0 HI 93730B-0 HI 93730C-0 Description Reagent A Reagent B Reagent C Quantity 1 packet 1 packet 1 packet V REAGENT SETS HI 93730-01 Reagents for 100 tests HI 93730-03 Reagents for 300 tests OPERATIONAL GUIDE MEASUREMENT PROCEDURE · Turn the meter on by pressing ON/OFF. · When the LCD displays "- - -", it is ready. · Fill one cuvet with 10 mL of sample up to 1. 5 cm (¾") below the rim and replace the cap. · Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove. · Press ZERO and "SIP" will appear on the display. ZERO 1. 5 cm ON OFF · Add the content of one packet of HI 93730B molybdenum reagent to the cylinder, close it and invert several times until the powder is completely dissolved. B INTERFERENCES Interference may be caused by: Aluminum above 50 mg/L Chromium above 1000 mg/L Copper above 10 mg/L Iron above 50 mg/L Nickel above 50 mg/L Nitrite, as NO2­ Sulfate above 200 mg/L Highly buffered samples or with extreme pH may exceed the buffering capacity of the reagents. ACCESSORIES REAGENT SETS HI 93730-01 Reagents for 100 tests HI 93730-03 Reagents for 300 tests0 OTHER ACCESSORIES HI 710009 HI 710010 HI 721310 HI 731318 HI 731321 HI 731325 HI 93703-50 Blue rubber boot Orange rubber boot 9V battery (10 pcs) Tissue for wiping cuvets (4 pcs) Glass cuvets (4 pcs) Caps for cuvets (4 pcs) Cuvets cleaning solution (230 mL). · Add the content of one packet of HI 93730C molybdenum reagent to the cylinder, close it and shake for 15" until powder has dissolved. C TIPS FOR AN ACCURATE MEASUREMENT The instruction listed below should be carefully followed during testing to ensure best accuracy. · Do not touch the cuvet walls with hands. [. . . ] As a general rule of thumb, they should be doubled at 10°C (50°F) and halved at 30°C (86°F). CE DECLARATION OF CONFORMITY · Wait for a few seconds and the display will show "-0. 0-". Now the meter is zeroed and ready for measurement. · Fill one graduated mixing cylinder up to the 25 mL mark with the sample. [. . . ]