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Summary of Contents for Hanna Instruments HI9142
- Page 1 Instruction Manual HI 9142 Portable Waterproof Dissolved Oxygen Meter This instrument is in Compliance with the CE Directives http://www.hannainst.com...
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Page 2: Table Of Contents
Dear Customer, PRELIMINARY EXAMINATION Thank you for choosing a Hanna Instruments Product. Remove the instrument from the packing material and examine it to make sure that no damage has Please read this instruction manual carefully occurred during shipping. If there is any before using the instrument. -
Page 3: Functional Description Probe
in thermistor for temperature measurements FUNCTIONAL DESCRIPTION and compensation. The thin permeable membrane isolates the sensor elements from the testing solution, but allows oxygen to enter. When a voltage is applied across the sensor, oxygen that has passed through the membrane reacts causing current to flow, allowing the determination of oxygen. -
Page 4: Specifications
INITIAL PROBE PREPARATION SPECIFICATIONS Probe Preparation All probes shipped from Hanna Instrument HI 9142 are dry. To hydrate the probe and prepare it Range 0.0 to 19.9 mg/l for use, connect it to the meter and proceed as follows. Resolution 0.1 mg/l 1 Remove the red and black plas- Shipping... -
Page 5: Calibration Procedure
Zero Calibration: CALIBRATION PROCEDURE • Dip the probe into HI 7040 zero oxygen solution and stir gen- PROBE POLARIZATION The probe is under polarization with a fixed tly for 2-3 minutes. voltage of approximately 800 mV. • Allow 2 minutes for the LCD readout to Probe polarization is essential for stable mea- stabilize. -
Page 6: Taking Measurements
ALTITUDE & SALINITY COMPENSATION TAKING MEASUREMENTS Make sure the meter has been If the sample contains salts or if you are calibrated and the protective performing the measurements at a different cap has been removed. Im- altitude than sea level, the readout values must merse the tip of the probe in the be corrected, taking into account the lower sample to be tested. -
Page 7: Probe & Membrane Maintenance
SALINITY COMPENSATION PROBE & MEMBRANE MAINTENANCE The table below shows the influence of salt in the measurement of oxygen. The oxygen probe body is made of reinforced plastic for maximum durability. In HI 9142 all the readouts are referred to 0 g/l A thermistor temperature sensor provides tem- of salinity value. -
Page 8: Battery Replacement
• Make sure that the rubber O-ring is seated BATTERY REPLACEMENT properly inside the membrane cap. • With the sensor facing down, screw the When the battery is rundown membrane cap clock-wise. Some electro- "V" is displayed on the Liquid lyte will overflow. -
Page 9: Accessories
Instruction manual warranty, you will be notified of the charge for repair or replacement. If the instrument is to be returned to Hanna Instruments, obtain a Return Goods Authorization from the Customer Ser- vice Department first and then send it with shipment cost prepaid. -
Page 10: Other Products From Hanna
OTHER PRODUCTS FROM HANNA CE DECLARATION OF CONFORMITY • CALIBRATION AND MAINTENANCE SOLUTIONS • CHEMICAL TEST KITS • CHLORINE METERS • CONDUCTIVITY/TDS METERS • DISSOLVED OXYGEN METERS • HYGROMETERS • ION SPECIFIC METERS (Colorimeters) • MAGNETIC STIRRERS • pH/Na/NaCl METERS •... - Page 11 PRINTED IN MAN9142R1 PORTUGAL 12/95...
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