Input level gauge fault detection and how to solve

Input level gauge fault detection and how to solve

1. First check the output power is connected to the right, such as the connection is not correct should be modified in accordance with the operation manual.

2. With three output voltmeter measurement output voltage between 24V and O / P, the output voltage should be between 13V ~ 36V, if the output voltage is not normal should check the line or the relevant level gauge for any abnormalities.

3. The first two should be confirmed after normal, and then in the 4 ~ 20MA circuit string a milliammeter, check the output current is normal, if the output current value is not normal should be replaced or contact the level gauge manufacturer factory workers .

4. With the output voltage meter to check the output voltage between IN and COM, the normal should be about 2.5V, if the output voltage is too low then remove the EXC wire to see if the output voltage is restored to normal, said the yellow module is not normal, if The electricity is still low, indicating that the signal converter is damaged.

Level meter, level gauge fault detection how to solve

5. Float down to the bottom, the flag does not return to zero, the flag board can not keep up the speed of the ball down, should install throttling device to slow down the liquid level; flag color film will not flip, or color chaos , Confirm that there is no magnetic body around and inside the body tube and sweep the magnet once after cleaning to make the color consistent. Color film flip 360 degrees, the magnetic field is too strong, contact the factory staff to replace the float.

6. Proximity level meter does not move. Meter to check the level gauge action is normal, the magnet contacts should be turned on and the thermal resistance should be less than 300MΩ below the magnet removed after the liquid level gauge should be open and the thermal resistance should reach 10MΩ above, if less than the above requirements A new proximity level gauge should be replaced.

7. Input level indicator signal converter 2 lines do not know how to receive the indicator. Please follow the operation manual to connect 24V terminal of signal converter to 24V terminal of indicator. The O / P of signal converter is connected to the AI ​​terminal of indicator. If it still can not work normally after power on, please contact the factory staff.

8. Input level gauge no output.

(1) first smell to see if the output power seat burning smell, if the burnt smell representative has burned, factory workers should contact the replacement of new products;

(2) confirm the material weight is too light, replace the large blades;

(3) improper installation site, if the direct impact of material, should be installed to protect the baffle, or to avoid the cutting position.

9. Level gauge parts fall.

(1) Please check if there is any vibration level meter in the tank environment or other vibrators.

(2) Optional other products, to avoid internal components caused by vibration fall.

10. Level gauge water. Please exclude water and drying, to confirm the insulation of the line up to 100MΩ above, and finally in accordance with the provisions of wiring construction, and indeed use sealant to seal all the gap equity fund.

Input level gauge maintenance and care:

1) Wash once a month.

2) When washing, firstly open the cap of the iron tube of the input level meter, carefully take out the level gauge; then remove the debris (such as aquatic plants, plankton, etc.) attached to the level gauge.

Input level gauge fault detection and how to solve

1. First check the output power is connected to the right, such as the connection is not correct should be modified in accordance with the operation manual.

2. With three output voltmeter measurement output voltage between 24V and O / P, the output voltage should be between 13V ~ 36V, if the output voltage is not normal should check the line or the relevant level gauge for any abnormalities.

3. The first two should be confirmed after normal, and then in the 4 ~ 20MA circuit string a milliammeter, check the output current is normal, if the output current value is not normal should be replaced or contact the level gauge manufacturer factory workers .

4. With the output voltage meter to check the output voltage between IN and COM, the normal should be about 2.5V, if the output voltage is too low then remove the EXC wire to see if the output voltage is restored to normal, said the yellow module is not normal, if The electricity is still low, indicating that the signal converter is damaged.

Level meter, level gauge fault detection how to solve

5. Float down to the bottom, the flag does not return to zero, the flag board can not keep up the speed of the ball down, should install throttling device to slow down the liquid level; flag color film will not flip, or color chaos , Confirm that there is no magnetic body around and inside the body tube and sweep the magnet once after cleaning to make the color consistent. Color film flip 360 degrees, the magnetic field is too strong, contact the factory staff to replace the float.

6. Proximity level meter does not move. Meter to check the level gauge action is normal, the magnet contacts should be turned on and the thermal resistance should be less than 300MΩ below the magnet removed after the liquid level gauge should be open and the thermal resistance should reach 10MΩ above, if less than the above requirements A new proximity level gauge should be replaced.

7. Input level indicator signal converter 2 lines do not know how to receive the indicator. Please follow the operation manual to connect 24V terminal of signal converter to 24V terminal of indicator. The O / P of signal converter is connected to the AI ​​terminal of indicator. If it still can not work normally after power on, please contact the factory staff.

8. Input level gauge no output.

(1) first smell to see if the output power seat burning smell, if the burnt smell representative has burned, factory workers should contact the replacement of new products;

(2) confirm the material weight is too light, replace the large blades;

(3) improper installation site, if the direct impact of material, should be installed to protect the baffle, or to avoid the cutting position.

9. Level gauge parts fall.

(1) Please check if there is any vibration level meter in the tank environment or other vibrators.

(2) Optional other products, to avoid internal components caused by vibration fall.

10. Level gauge water. Please exclude water and drying, to confirm the insulation of the line up to 100MΩ above, and finally in accordance with the provisions of wiring construction, and indeed use sealant to seal all the gap equity fund.

Input level gauge maintenance and care:

1) Wash once a month.

2) When washing, firstly open the cap of the iron tube of the input level meter, carefully take out the level gauge; then remove the debris (such as aquatic plants, plankton, etc.) attached to the level gauge.

3) When cleaning the pressure gauge hole of the water gauge, use trichlorethylene or alcohol into the pressure relief hole to soak for about 5 minutes at one half of its height, and then gently shake several times until it is clean. Prohibit the use of any appliance washing pressure hole, so as not to damage the sensitive core sense of pressure diaphragm.

4) When cleaning the pressure transmitter pressure port and pressure port, avoid using excessive hardness brush or metal tools to avoid damage to the sensitive core and the pressure interface thread.

5) After washing the level gauge slowly back to the iron pipe, the feeling has been placed in the lower part of the iron pipe, the screw cap can be installed back to the original place.

After removing the washing and reinstalling, due to the installation depth there will be some changes, you must again in accordance with the water level of the same water gauge at the time of the secondary instrument to correct the measured values ​​to ensure the correctness of the sampling data.

4) When cleaning the pressure transmitter pressure port and pressure port, avoid using excessive hardness brush or metal tools to avoid damage to the sensitive core and the pressure interface thread.

5) After washing the level gauge slowly back to the iron pipe, the feeling has been placed in the lower part of the iron pipe, the screw cap can be installed back to the original place.

After removing the washing and reinstalling, due to the installation depth there will be some changes, you must again in accordance with the water level of the same water gauge at the time of the secondary instrument to correct the measured values ​​to ensure the correctness of the sampling data.