HI 9142 Waterproof, Dissolved Oxygen Meter

• Water Resistant Casing The rugged construction is water resistant, making it indispensable in the biological water treatment industry.
• One Point Calibration With the probe in saturated air, the meter can be calibrated without the need for chemical solutions.
• ATC Circuitry The meter's built-in Automatic Temperature Compensation circuitry will adjust all readings to provide the utmost accuracy.
• Low Battery Indicator The low battery indicator gives the user advanced notice to avoid taking an erroneous reading due to low power.

The ever increasing demand for instant results for on-site analyses has created a constant need for waterproof portable meters. The cold, rain, snow and dust associated with use in the field, may damage a meter, rapidly deteriorating its performance and life. HI 9142 is a rugged, water resistant meter that solves the common problems of field use. It is very simple to use: calibration is performed with HI 7040 zero oxygen solution while 100% calibration is done in air. There is no need to use chemical solutions or go through time consuming calibration processes. The polarographic probe (HI 76407/4) will take measurements accurate to 0.2 ppm O2/liter in less than 1 minute and is equipped with a 13' (4m) cable that allows measurements to be taken in even hard to reach places. For applications that require a longer probe cable, the HI 76407/10 probe with a 32.8 foot (10 meter) cable is available. The conic shape of the probe allows it to be used in all BOD5 measurements making it a truly versatile instrument. HI 9142 is supplied complete with an HI 76407/4 D.O. probe, 2 spare membranes, HI 7041S electrolyte solution, 4 x 1.5V AA batteries and instruction manual in a rugged carrying case.

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