Hanna Instruments HI 8043 Instruction Manual Download | Manualshive

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Instruction Manual

HI 8043

Portable

Dissolved Oxygen Meter

ins rum

n s

OFF

O

2

STB

°C

DO meter

HI 8043

ZERO

SLOPE

°C

1
2
3
...
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Summary of Contents for HI 8043

Page 1: ...1 Instruction Manual HI 8043 Portable Dissolved Oxygen Meter ins rum ns OFF O2 STB C DO meter HI 8043 ZERO SLOPE C ...

Page 2: ...ory without compromising accuracy Dissolved oxygen is indicated in mg L ppm and the reading is compensated for the tem perature effect ATC The dissolved oxygen probe is provided with a membrane for covering the polarographic sensors and features a built in thermistor for temperature measurements and compensa tion DearCustomer Thank you for choosing a Hanna Instruments Product Please read this inst...

Page 3: ...3 ZERO SLOPE C 1 4 2 9 3 5 6 7 8 The thin permeable membrane isolates the sensor elements from the sample but allows oxygen to enter A voltage is applied across the sensor and the oxygen that has passed through the mem brane reacts causing the current to flow hence determining a reading A convenient feature of the instrument is its standbymodewhichkeepstheprobepolarized and ready for instant measu...

Page 4: ... in side To avoid damaging the membrane do not tap the membrane directly on the bottom 5 Make sure that the rubber O ring sits properly inside the membrane cap 6 With the sensor facing down screw the cap clock wise Some electrolyte will overflow When the probe is not used protect the membrane with the supplied cap Shipping cap black red SPECIFICATIONS Range 0 00 to 19 99 mg L O2 0 0 to 50 0 C 32 t...

Page 5: ...polarization is essential for stable mea surements to be taken with the same degree of accuracy With polarized probe oxygen is continually consumed by passing through the sensitive diaphragm and dissolving in the electrolyte solution contained in the probe If this operation is interrupted the electrolyte solution continues to be enriched with oxy gen until it reaches an equilibrium with the surrou...

Page 6: ...l the display reads zero If the zero point is passed 1 will appear on the display If you cannot get zero reading the probe is probably defective Check the mem brane electrode and electrolyte solution After the zero calibration has been completed rinse the probe thoroughly with tap water SLOPE CALIBRATION In order to perform a highly accurate calibration take a B O D bottle and fill with water to a...

Page 7: ...0 9 31 9 13 8 96 8 80 8 65 8 50 8 35 8 19 8 04 7 89 7 74 7 60 7 48 7 38 7 28 7 18 7 08 6 98 6 88 6 78 6 68 6 58 6 48 6 38 6 28 6 18 6 08 5 98 5 88 5 78 5 68 5 58 0 3 14 50 14 11 13 73 13 38 13 03 12 70 12 39 12 08 11 79 11 51 11 26 11 01 10 76 10 53 10 30 10 09 9 89 9 68 9 48 9 30 9 12 8 94 8 79 8 64 8 49 8 33 8 18 8 03 7 88 7 73 7 59 7 47 7 37 7 27 7 17 7 07 6 97 6 87 6 77 6 67 6 57 6 47 6 37 6 2...

Page 8: ...ater because 1 degree of temperature difference entails an error of 3 in dissolved oxygen measurement TEMPERATURE CALIBRATION OFF O2 STB C C Table 3 Correction for salinity effect C 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Quantity to be subtracted per mg l of NaCl 0 0892 0 0861 0 0830 0 0802 0 0779 0 0749 0 0724 0 0701 0 0678 0 0657 0 0637 0 0618 0 0599 0 0582 0 0565 0 ...

Page 9: ... seated properly inside the membrane cap TWIST AND PULL fig 1 TAKING MEASUREMENTS Make sure the meter has been calibrated and the protective cap has been removed Immerse the tip of the probe in the sample to be tested For accurate dissolved oxygen measurements a water move ment of at least 0 3 m sec is required This movement will ensure that the oxygen depleted membrane surface is constantly re pl...

Page 10: ...ith certain gases or extended use with a loose or dam aged membrane the cathode should be cleaned Use a lint free cardboard or cloth and rub the cathode very gently side to side 4 5 times This will be enough to polish and remove any stains without damaging the plati num tip Afterwards rinse the probe with deionized or distilled water and install a new membrane cap using fresh electrolyte Recalibra...

Page 11: ... the charge for repair or replacement If the instrument is to be returned to Hanna Instruments obtain a Return Goods Authorization from the Cus tomer Service Department first and then send it with shipment cost prepaid When shipping any instrument make sure it is properly pack aged for complete protection All rights are reserved Reproduction in whole or in part is prohibited without the written co...

Page 12: ...tion of this instrument in residential area could cause unacceptable interfer ences to radio and TV equipments requiring the operator to take all necessary steps to correct interferences Any variation introduced by the user to the supplied equipment may degrade the instrument s EMC performance To avoid damages or burns do not perform any measurement in microwave ovens ...

Page 13: ...2942 Japan Tel 03 3258 9565 Fax 03 3258 9567 Korea Tel 02 2278 5147 Fax 02 2264 1729 Malaysia Tel 603 5638 9940 Fax 603 5638 9829 Singapore Tel 6296 7118 Fax 6291 6906 SouthAfrica Tel 011 615 6076 Fax 011 615 8582 Taiwan Tel 886 2 2739 3014 Fax 886 2 2739 2983 Thailand Tel 66 2619 0708 Fax 66 2619 0061 UnitedKingdom Tel 01525 850 855 Fax 01525 853 668 USA Tel 401 765 7500 Fax 401 765 7575 For e ma...

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