Hanna Instruments HI 98150N - Manual (Page 4)

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When the SMART electrode is attached to the meter again, it is
automatically recognized. This technology allows the operator to
optimize time and efficiency with unsurpassed safety. It avoids erroneous
measurements taken in the event the pH electrode is substituted after
calibration. This series of electrodes also incorporates a temperature
sensor, eliminating the need for an additional temperature probe.
They also offer an extended temperature range from –20 ºC to 120 ºC
(–4 ºF to 248 ºF).
These instruments can also measure with ORP electrodes (
HI 98150 &
HI 98160), thanks to their capability to measure mV with a resolution
up to 0.1 mV.
Other features include:
• Relative mV measurements (
HI98150 & HI 98160)
• Log on demand (500 samples)
• Auto Hold feature, to freeze first stable reading on the LCD
• GLP feature, to view last calibration data for pH, Rel mV
• PC interface
The Battery Error Preventing System (BEPS) detects when the batteries
become too weak to ensure reliable measurements.
The backlight feature is automatically disabled when batteries are
getting low and a clear indication is displayed to warn the user of this
condition. However, the meter continues to measure correctly even when
the low battery indication is displayed. The meter automatically switches
itself off when the batteries are too weak to support proper function.
In addition, the meters allow the user to enter an ID code to uniquely
identify the instrument.