Hanna Instruments HI 8014, Инструкция по эксплуатации

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BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT
All meters are powered by a 9V battery that is located on the rear of
the instrument.
When the battery becomes weak:
-
HI 8014 , reaching a certain threshold, automatically switches the
LCD off.
- HI 8314 , HI 8915 , HI 8424 display a blink-
ing additional decimal point on the left side
of the LCD.
- HI 9214 and HI 931000 display "Eb".
- HI 9622 displays "BAT" on the left side of
the LCD.
When the low battery indicator appears only a few hours of battery
life is remaining. A low battery may also result in loss of calibration
data or unreliable measurements. It is recommended that the battery
be replaced immediately.
Replacement must only take place in a non-hazardous area using an
alkaline 9V battery.
To access the battery, remove the battery cover by applying pressure
in the direction indicated below. Replace the old battery with a new
one while paying attention to its polarity.
Note : the instrument should be recalibrated after changing the
battery.
HI 8114
HI 8414
HI 9214
9 VOLT BATTERY
SLIDE
HI 9214
HI 8014 - HI 8314
HI 8424 - HI 8915
HI 9622
HI 931000
HI 8014
HI 8314
HI 8424
HI 8915
BATTERY
BAT
pH
Note: for field applications, it is always recommended to keep a
spare electrode handy. When anomalies are not resolved with
a simple maintenance, change the electrode (and recalibrate
the meter) to see if the problem is alleviated.
TAKING REDOX MEASUREMENTS TAKING REDOX MEASUREMENTS TAKING REDOX MEASUREMENTS TAKING REDOX MEASUREMENTS TAKING REDOX MEASUREMENTS
HI 8014 , HI 8314 , HI 8424 , HI 8915 and HI 9622 have the
capability to take ORP measurements.
An optional ORP electrode must be used to perform these measure-
ments.
Oxidation-reduction potential (REDOX) measurements provide the
quantification of the oxidizing or reducing power of the sample tested.
To correctly perform a redox measurement, the surface of the ORP
electrode must be clean and smooth.
When not in use, the tip of the electrode should be kept moist and
safe from any mechanical stress which might cause damage to the
glass/platinum junction.