Main structure and working principle of temperature-adjusting and speed-adjusting asphalt elongation tester-华强电子网

Temperature control speed asphalt elongation tester

Main structure and working principle

The instrument is mainly composed of a mechanical stretching device, a temperature control device and a liquid crystal display.

1.

Mechanical stretching device driven by low speed motor

,

Through the gearbox drive rack and pinion

,

Move it from one end to the other

.

There is also a shifting mechanism on the transmission

,

Available

50 mm

/min

with

10 mm

/min

Two different stretching speeds

.

2.

Temperature control device

(

Compressors, condensers, fans, etc.

)

And heaters, pumps, water tanks, etc.

.

Cycle through the pump

,

Make the water in the sink warm

5-50 ° C

Adjustable thermostat

.

3.

The ductility liquid crystal display can directly display the extension length of three test pieces

,

And can automatically calculate and display the average value of the three specimens

.

Asphalt elongation tester

Operational use

(

one

)

Controller operation instructions

1.

Temperature part operation

:

Power on

,

The upper row of the meter shows the measured temperature value

,

That is the actual temperature. The lower row shows the set temperature value.

The meter uses the tact switch to set the parameters, and there are four keys on the panel.

SET

The key is used to enter the temperature setting state.

p

,

q

with

t

The key is used to modify the data.

press

SET

key

3

Seconds, the meter displays

"SET"

, enters the set value setting state, and the lower row displays the original set value. The control temperature can be set and modified at this time.

Per press

p

Key once, flashing number plus

1

When the accumulated value is greater than

9

Automatic carry

1

;

Per press

q

Key once, flashing number minus

1

When the decrement value is less than

0

Automatic misalignment

1

;