详情
LH-T*0 Freezing
Point of Antifreeze and specific gravity of Battery fluid
detector
These models can be used for
measuring the freezing point of either ethylene glycol or propylene
glycol which used widely in vehicle as antifreeze, based cooling
system, and checking the strength of electrolyte solution
batteries.
1. Technical
data
|
LH-T*0
|
Measuring range
|
Resolution
|
Accuracy
|
|
Antifreeze
|
0°C~**0°C
|
5°C
|
± 2.5°C
|
|
Battery fluid specific
gravity
|
1.*0~1.*0
|
0.1
|
± 0. 1
|
|
Cleanout fluid
|
0°C~*0°C
|
*0°C
|
|
1. Prism, 2.Cover plate,
3.alibration, 4.Mirror tube, 5. Eyepiece (Adjusting ring of
diopter)
2.
Operation:
1. Prepare: Aim the front end
of the refractometer in the direction of a bright light, and adjust
the adjusting ring of diopter (5) until the reticle can be seen
clearly.
2. Calibration: Drop one drop
of standard solution on the bright surface of the reference block.
Open the cover plate (2), stick the reference block on the surface
of the prism, and press it lightly with your hand, so that it can
not slide down. Rotate and adjust the calibration screw (3) to make
the light/blue boundary coincide with reference line.
3. Measurement: Open the cover
plate (2), clean the surface of prism with a piece of soft cotton
flannel, Drop 1~2 drops of the solution to be measured. Close the
cover plate, and press it lightly, then read the corresponding
scale of light and dark boundary. The
reading is thefreezing point
or specific gravity of the measured
solution.
4. Storage: Clean the surface
of prism and cover plate with moist gauze, and it should be stored
carefully.
3. Attention and
maintenance
1. Adjustment for the null
liquid and specimen should be in the same temperature. Once the
temperature moves greatly, the null point should be adjusted once
per *0 minutes.
2. To avoid using water to wash
the instrument, so as to avoid water entering the inside of the
instrument.
3. As a precision optical
instrument, handle it gently and take good care of it. Do not touch
or scratch the optical surface. Please keep it in a dry, clean and
non-corrosiveness environment, to prevent the surface from turning
mouldy and foggy. Please avoid strong shock during
transportation.
4. If the consumers use the
instrument in accordance with the mentioned method of usage, the
optical performance should not be changed.
4. Temperature
compensation
The reference of temperature is
*0°C. In operation, the temperature should be made according to the
correcting table. ATC is mounted with Automatic Temperature
Compensation, it has the extra function, it enables user
concentrate on measurements without worrying the temperature.
Compensation range is *0~*0°C.
