Bante932 Benchtop Water Hardness Meter
13
Temperature Calibration
During the measurement process, if the temperature reading displayed differs from that of an accurate thermometer, the meter needs to be calibrated.
1.
Connect the temperature probe to the meter and place into a solution with a known accurate temperature.
2.
Press and hold the
o
C
key for 3 seconds to enter the temperature setting mode.
3.
Press the
or
key to set the temperature value.
4.
Press the
Enter
key to confirm. Calibrating is completed.
During the setting process, press the
or
key once, the setting value will increase or decrease by 0.1. Press and hold the
or
key, the
setting value will increase or decrease by 1.
Water Hardness Measurement
Before measuring, ensure that the temperature of samples are the same as the standard solutions, the maximum error should be controlled within the 1° C.
For low level measurements or samples contain the interference ions, ensure that adding the ionic strength adjuster to samples.
1.
Press the
Mode
key to select desired measurement mode (Refer to page 6
“Switching the Measurement Mode”).
2.
Rinse the water hardness electrode thoroughly with distilled water. Place the electrode into the sample solution, stir the electrode gently. Record
the measured value when the reading is stable.
Auto-Hold
The meter contains an Auto-Hold function. If enabled, the meter will automatically sense a stable reading and lock the measurements, the HOLD icon
appears on the display. If disabled, press the key, the meter will immediately lock the displayed value. Press the
Meas
key to resume measuring.
