product name:
Multifunctional direct reading calcium measuring instrument, direct reading calcium measuring instrument, calcium measuring instrument
product manual
product name
] SG
-
6
,
8
Multifunctional direct reading calcium measuring instrument
[
Product introduction
]
It can measure both the lime dose and the cement dose and the effective calcium oxide content in the lime.
The main technical parameters:
Measurement range and error:
Lime dose:
6.0%
-
18.0%
Absolute error
≤0.4%
Cement dosage:
3.0%
~
10.0%
Absolute error
≤0.4%
Effective calcium oxide content:
1%
Resolution:
Lime dose:
0.1%
Cement dosage:
0.1%
Effective calcium oxide content:
1%
Operating procedure
1.
According to the test requirements, prepare the corresponding calibration solution to calibrate the instrument. When calibrating, choose
"
Manualâ€
or"
automaticâ€
Form, stir the calibration solution and the sample solution to be tested, and select"
calibration1"
or"
calibration2"
, the instrument displays the value as"
Calibration solution1"
or"
Calibration solution2"
The value.2.
Self-examination of the instrument and electrodes. Turn on the power, do not connect the electrodes, place the work selector switch
"mV"
,"
calibration1"
,"
Manualâ€
,"
Beaker position""
start upâ€
Check if the instrument can display normally;0.1mol
Wait, useNacl
Solution instead of distilled water0.1mol
,0.01mol
Two calcium chloride solutions, instrumented"Mv"
In the file, measure the potential of the two solutions with the activated electrodeE1
,E2
,E1-E2
Should be greater than25mV
.3.
Test according to different test purposes and requirements
(1).
Measuring effective calcium in lime:
1
Prepare samples as required;2
Calibrate the instrument as required.3
Lime sample determination: Place the lime sample solution on top of the instrument"
Beaker positionâ€
,press"
start upâ€
Button, the solution is stirred, the stirring indicator light is on, the electrode is immersed in the solution, the solution is stirred, the stirring indicator is off, and then wait until"
lockingâ€
After the red light is on, write down the instrument display value. Lift the electrode, remove the first sample, rinse the electrode with clean water and use the average value as the effective calcium measurement for the lime sample. The above operation was performed on the second third sample, and the average of three times was taken as the measured value of the sample.(2).
Measuring the cement (or lime) dose in cement (or lime) stabilized soil:1
Prepare the standard solution and the sample solution at the construction site as required;2
Calibrate the instrument as required.3
Lime sample determination: Place the lime sample solution on top of the instrument
"
Beaker positionâ€
,press"
start upâ€
Button, the solution is stirred, the stirring indicator light is on, the electrode is immersed in the solution, the solution is stirred and stopped, the stirring indicator is off, and then wait until"
lockingâ€
After the red light is on, write down the instrument display value. Lift the electrode, remove the first sample, rinse the electrode with clean water and use the average value as the effective calcium measurement for the lime sample. Two samples were taken for parallel testing and the average was taken as the measured value.Instructions
1
) function selection. Used to select different measurement functions, respectively
mV
Potentiometer,C1
Lime dosage,C2
Cement dosage,CaO
Switch between. The function selection button unlocks the data.2
)calibration. Press the calibration button
3
In seconds, the instrument enters the calibration state. In the calibration state, tap the calibration button to switch the function items that need to be calibrated. At this time, write the calibration point1
, write calibration points2
effective.3
) Automatic measurement. After the automatic measurement is pressed, the agitation is automatically started.
60
After a second, the stirring stops, and then20
In seconds, the display data lock no longer changes. In the data lock state, press the function selection key to switch the function to unlock.4
) Cleared. The current voltage is cleared, this function is only in
mV
Under the potentiometer, it is used to clear the current voltage zero point and is used to automatically display the difference between the two measured potentials.5
)print. Used to print the current test results. Make sure that the printer power, Data Cable is properly connected before operation, and that the printer is properly installed with the paper and ribbon installed and online.
6
)start up
/
stop. Start and stop the stirring motor.7
Speed ​​control. Mixing motor speed control, can be
3
Select back and forth in the file speed.8
)power supply. Instrument power switch
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