$ 31,31 – $ 45,81
SPECIFICATION
Resolution:
Automotive urea concentration 0.2%
Antifreeze freezing point 5 °
Glass water freezing point 5 °
The specific gravity of the battery is 0.01
Right scale: glass cleaning solution freezing point
Precautions
1, not in the relative humidity of more than 85% of the ring mirror in the long-term placement, so as not to affect the optical system.
2, do not get into the liquid and water adjustment knob and eyepiece, so as not to damage the internal components.
3, do not leap and collision, so as not to damage the instrument accuracy.
4, immediately after use with a clean cloth to the prism and the refractive plate wipe light net.
First, the principle: The basic principle is to use the total reflection critical angle method to measure the refractive index of the solution, and then calibrate the measured liquid concentration and its performance. Because of its principle of reliable, accurate to meet the actual needs, there are small size, light weight, handsome in appearance, easy to use, it is widely used in the automotive industry.
Freezing Point Detector
Automatic temperature compensation / Chrome-plated brass / Widely used
Antifreeze freezing point detection / Glass water freezing point detection / Electrolyte specific gravity detection
Structural Diagram Analysis
Prism holder – Cover – Lens barrel and handle – Eyepiece
Prism – Correction adjustment – Diopter adjustment wheel
Credit Guarantee
Freezing Point Detection
Hand-held refractometers are small optical instruments that measure the concentration and freezing point of solutions . The basic principle is to use the total reflection critical angle to measure the refractive index of the solution .Then determine the concentration , freezing point and properties of all solutions
Freezing Point Tester
Used to measure the freezing point of ethylene glycol-based antifreeze , colleagues can measure the freezing point of ethylene glycol and the specific gravity of battery solution
Illustrate
1 . Middle scale :
( ETHYLENE ) ethylene glycol antifreeze freezing point
( PORPYLENE ) propylene glycol type antifreeze freezing point
2 . Left scale :
( BATTERY ) Specific gravity of battery fluid
1.10-1.20 Need to charge RECHAGE
1 . 20-1.25 enough power FAIR
1.25-1.40 Sufficient battery GOOD
3 . Right ruler : glass cleaner freezing point
4 . The ruler on the upper right side : the urea concentration ruler for vehicles : 30-35% , the effect is good at 32.5%
Tips
The multifunctional freezing point meter cannot measure the freezing point of methanol antifreeze and methanol glass water
Correction Steps
Note : Before testing , the detector needs to be calibrated
Step 1 : Take one or two drops of distilled water or pure water on the prism surface to cover the cover
Step 2 : Adjust the calibration button until the blue-white junction line coincides with the 0°C reference line to complete
Product Instructions
1 . Open the cover and use a soft flannel to wipe the cover and prism surface clean
2 . Drop the liquid to be tested on the surface of the prism with a pipette , close the cover and press lightly , point the freezing point tester to the bright place , rotate the eyepiece to make the marking line in the field of view clear , and read the light-dark dividing line on the reticle . The value on the corresponding scale can be
Precautions For Use
1 . When measuring methanol solution , be careful not to spill it on the human body , so as not to damage the body , carefully wipe the instrument after the test
2 . After use , it is forbidden to rinse directly with tap water to avoid water entering the optical system
3 . Avoid strong impact on the instrument or large external force on the instrument when using it
