Hanna Instruments HI 9142 Instruction Manual

2, Hanna Instruments HI 9142 2 3 PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer. The meter is supplied complete with: • HI 76407/4 DO probe with 4 m cable • 2 spare membranes with O-r…

8, 14 15 BATTERY REPLACEMENT When the battery level is low, "V" is displayed on the LCD to warn the user that the bat- tery needs to be replaced. The meter will still work for approximately 4 hours, then the display will be shut-off to avoid erroneous readings. Battery replacem…

7, 12 13 PROBE & MEMBRANE MAINTENANCE The oxygen probe body is made of reinforced plastic for maximum durability. A thermistor temperature sensor provides tem- perature measurement and compensation. When not in use, it is always recommended to protect the probe against damage and dirt u…

4, 6 7 PROBE INITIAL PREPARATION Probe Preparation All D.O. probes from Hanna Instrument are shipped dry. To hydrate the probe and pre- pare it for use, connect it to the meter and proceed as follows. 1. Remove the red & black plastic cap. This cap is used for ship- ping purposes only and…

6, 10 11 ALTITUDE & SALINITY COMPENSATION If the sample contains salts or if you are performing the measurements at a different altitude than sea level, the readout values must be corrected, taking into account the lower degree of oxygen solubility. ALTITUDE COMPENSATION All the readouts ar…