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Summary of Contents for Hanna Instruments HI9146-04
- Page 1 Instruction Manual HI9146 Dissolved Oxygen Temperature Meter w w w. h a n n a i n s t . c o m...
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Page 2: Table Of Contents
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 (RGA) number from the Technical Service department and then send it with shipping costs prepaid. -
Page 3: Preliminary Examination
PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer or the nearest Hanna Customer Service Center. Each instrument is supplied with: •... -
Page 4: Probe Functional Description
PROBE FUNCTIONAL DESCRIPTION 1. DO Probe 2. Protective Cap 3. Watertight Shielded Cable 4. Polypropylene Probe Body 5. Temperature Sensor 6. O-Ring Seal 7. Silver Chloride Anode 8. Platinum Cathode (sensor) 9. Oxygen Permeable PTFE Membrane 10. Membrane Cap... -
Page 5: Meter Functional Description
METER FUNCTIONAL DESCRIPTION 1) Liquid Crystal Display (LCD). 2) Range key, to select ppm or % range. 3) On/Off key, to turn the instrument ON and OFF. 4) CAL key, to enter/exit calibration mode. 5) Setup key, to enter/exit SETUP mode. key, to manually increase temperature or other parameters. - Page 6 10) GLP key, to display Good Laboratory Practice information. CFM key, to confirm different values. 11) AutoEnd key, to freeze first stable reading on the LCD. 12) Light key, to toggle display backlighting. 13) Secondary LCD. 14) Primary LCD.
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Page 7: Specifications
SPECIFICATIONS 0 . 0 0 . 5 . 0 0 0 . 0 C ° 0 . 2 0 . 2 F ° 0 . 0 I T U ° 1 1 . 0 F ° ± l u f c s l e l a ±... -
Page 8: Operational Guide
Probes shipped from Hanna Instruments are dry. To hydrate the probe and prepare it for use, connect it to the meter and proceed as follows: 1. - Page 9 Turn the instrument ON by pressing On/Off. At start-up the display will show all the used segments for a few seconds (or while the button is held), followed by the percentage indication of the remaining battery life. • After a few seconds “Cond” message appears, the “...
- Page 10 With the probe properly polarized, oxygen is continually consumed when it passes through the sensitive diaphragm and dissolves in the electrolyte solution contained in the probe. If polarization is interrupted, the electrolyte solution continues to be enriched with oxygen until it reaches an equilibrium with the surrounding solution.
- Page 11 For accurate Dissolved Oxygen measurements, a water movement of 0.3 m/s is required. This is to ensure that the oxygen-depleted membrane surface is constantly replenished. A moving stream will provide adequate circulation. The use of a magnetic stirrer to ensure a certain fluid velocity is recommended.
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Page 12: Autoend
AutoEnd To freeze the first stable reading on the LCD press AutoEnd while the instrument is in measurement mode. The ”HOLD” tag will be displayed blinking on the LCD until the reading will stabilize. When the reading is stable, the “HOLD” tag stops blinking and the reading is frozen on the LCD. - Page 13 INITIAL PREPARATION • Pour small quantities of HI7040 Zero Oxygen solution into a beaker. If possible, use a plastic beaker to minimize any EMC interferences. • Make sure the probe is ready for measurements (see probe preparation on page 8), i.e. the membrane is filled with electrolyte and the probe is connected to the meter.
- Page 14 SLOPE CALIBRATION It is suggested to perform the slope calibration in air. • Rinse the probe in clean water to remove any residual zero oxygen solution. Note: If you did not perform the zero calibration procedure, press CAL and then the keys to select the 100% DO calibration point.
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Page 15: Good Laboratory Practice (Glp)
GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and status of the probe. All data regarding DO calibration is stored for the user to review when necessary. LAST DO CALIBRATION DATA The last DO calibration data is stored automatically after a successful calibration. - Page 16 • The altitude value. • The salinity value. Press GLP at any moment and the instrument will return to measurement mode.
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Page 17: Setup
SETUP Setup mode allows viewing and modifying the following parameters: • Salinity value (SAL) • Altitude value (ALt) • Current Time (hour & minute) • Current Date (month, day & year) • Beep Status (bEEP) • Auto-off backlight (LIGH) • Auto power of (AOFF) •... -
Page 18: Do Concentration Versus Salinity Chart
DISSOLVED OXYGEN CONCENTRATION VERSUS SALINITY CHART Salinity affects the Dissolved Oxygen concentration expressed in ppm, decreasing its value. The table below shows the maximum oxygen solubility at various temperatures and salinity levels. l a S t i n i ) l / g a e S l e v C °... -
Page 19: Do Concentration Versus Altitude Chart
DISSOLVED OXYGEN CONCENTRATION VERSUS ALTITUDE CHART Altitude affects Dissolved Oxygen concentration expressed in ppm, decreasing its value. The table shows the maximum oxygen solubility at various temperatures and altitudes. u t i t , e d s r e t e v o a e S l e v... -
Page 20: Temperature Calibration (For Technical Personnel Only)
TEMPERATURE CALIBRATION (for technical personnel only) All the instruments are factory calibrated for temperature. Hanna’s temperature probes are interchangeable and no temperature calibration is needed when they are replaced. If the temperature measurements are inaccurate, temperature recalibration should be performed. For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or follow the instructions below. -
Page 21: Batteries Replacement
BATTERIES REPLACEMENT If the batteries become weak, the display will flash the battery symbol to advise the user that approx. 1 hour of working time is left. It is recommended to change the batteries as soon as the battery indicator blinks (lower frequency). -
Page 22: Lcd Message Guide
LCD MESSAGE GUIDE TAGS & SYMBOLS • Mode tags light up for indicating the corresponding active mode, and blink for warning the user. MEASURE on: Instrument in measurement mode. SETUP on: SETUP menu mode has been entered. CALIBRATION on: calibration mode has been entered. GLP on: GLP mode has been entered. -
Page 23: Probe & Membrane Maintenance
PROBE & MEMBRANE MAINTENANCE The oxygen probe body is made of reinforced plastic for maximum durability. A thermistor temperature sensor provides temperature measurements of the sample. Use the protective probe cap when not in use. To replace the membrane or refill with electrolyte, proceed as follows: •... - Page 24 IMPORTANT In order to have accurate and stable measurements, it is important that the membrane surface is in perfect condition. This semipermeable membrane isolates the sensor elements from the environment but allows oxygen to enter. If any dirt is observed on the membrane, rinse carefully with distilled or deionized water.
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Page 25: Troubleshooting Guide
TROUBLESHOOTING GUIDE i d a s g n u l f u t c e t a e b o p o r y l r e t r e s e h t o r p . e b i o n . -
Page 26: Accessories
ACCESSORIES HI98501 Digital thermometer (range: -50.0 to 150.0 °C / -58.0 to 302 °F) HI7040L Zero Oxygen Solution HI7041S Refilling Electrolyte Solution, 30 ml HI76407A/P Spare membranes (5 pcs.) HI76407/4F Spare DO probe with 4 m cable HI76407/10F Spare DO probe with 10 m cable OTHER ACCESSORIES HI740028P 1.5V AAA batteries (12 pcs.) - Page 27 24 Vac or 60 Vdc. To avoid damage or burns, do not perform any measurement in microwave ovens. Hanna Instruments reserves the right to modify the design, construction, or appearance of its products without advance notice.
- Page 28 Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail tech@hannainst.com www.hannainst.com Local Sales and Customer Service Office Printed in ROMANIA MAN9146Y 01/16...
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