DH-300 rubber and plastic density meter and rubber and plastic hydrometer troubleshooting method - Database & Sql Blog Articles

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Failure

1) When the weight is unstable

2) When the measurement is not accurate

3) The button does not respond

4) Display shows OL

5) The display does not display normally 0.00

Method of exclusion:

1. Re-check the installation environment to ensure that the installation environment is as follows:

1) The ideal place to place in an environment of 20 ° C / 68 ° F and humidity of 50%

2) The machine is installed in a position to avoid direct sunlight, vibration, wind, dust and magnetic field interference.

3) The voltage used matches the required voltage of the model

4) Using the foot adjustment level, adjust the bubble in the level to the center of the black circle, so that the whole machine is in a horizontal state.

5) Inject distilled water into the water tank to the top of the four frosted invisible lines on the water tank, wipe the surrounding water, and place the water tank in the two concave fixing grooves on the main machine.

6) Place the measuring table on the measuring board, and the four convex feet of the measuring table are placed in the four concave fixing grooves of the measuring board. Please note that the hanging bar should be submerged in the water and that the hanging bar is not in contact with the sink.

2. In the case where it is determined that the items on the measuring table and the water hanging bar have been emptied and the water hanging bar is not in contact with the water tank:

1) First shut down, in the state of shutdown.

2) Press and hold the [C] button and then press the power button to turn it on, until the screen displays [CAL] and let go.

3) Press the [B] key again to display the number 2. (If you press [B], there is no response, please try the above three steps until the screen displays the number 2)

4) After the screen displays the number 2, please operate in the following order:

a) Press the [A] key once (display number 1)

b) Press the [ZERO] key once (display number 3)

c) Press the [ZERO] button again (display number 3)

d) Press the [C] key once (display number 5)

e) Press the [ENTER] key once (display [CAL], if the [CAL] is not displayed, please repeat the ad four steps)

f) Press the [C] key once (display multiple numbers that will beat)

g) Press the [C] key once (display one digit, or two digits that will beat)

5) Then put a 100g weight in the center of the measuring table.

6) Press the [ENTER] key once to display 100.

7) Press the [ENTER] key again to display 100.00.

8) After removing the weight and restarting, you can solve the above phenomenon and use it after normal calibration.

※Remarks: Please take out the items in the measuring table and the hanging bar before shutting down. (such as the sample tested, tennis, anti-floating frame, glass, etc.).