Seven Common Faults of Elliptic Gear Flowmeters and Their Treatments

Oval gear flow meter volumetric flow meter, also known as fixed-displacement flow meter, is the most accurate type of flow meter in all flow meters. It is insensitive to flow distortion, can measure non-Newtonian flow, and can reflect true volumetric flow in a miscible flow measurement.

First, the oval gear does not rotate

Reasons: 1. There are debris in the pipeline;

2, the filter is damaged, debris into the table, causing the gear to be stuck;

3, due to excessive flow, bearing wear, resulting in elliptic gear collision guilt, causing gear stuck.

Treatment method: 1. Clean the flowmeter and pipeline;

2, repair filters;

3, replace the bearings to ensure that the gap can run flexibly.

Second, the oval gear rotation, the pointer does not move or when stopped

Causes: 1. Rotating fasteners sliding, damaged or inflexible;

2, magnetic coupling sliding;

3, word wheel parts are stuck.

Treatment methods: 1, re-fasten the fasteners, remove inflexible places;

2, check the magnetic coupling is flexible and magnetic strength;

3, troubleshooting the word wheel components.

Third, the flowmeter negative error

Causes: 1. Bypass valve leakage;

2. The internal wall or bearing of the elliptical gear measurement is worn or damaged;

3, the flow rate is lower than the lower limit;

4, magnetic coupling sliding or gear system periodic obstacles;

5, the actual fluid viscosity is less than the detection fluid viscosity.

Treatment method: 1, check the bypass valve;

2, replace the bearing, check the gear, adjust the gap;

3, increase the flow;

4, repair or replace the magnetic coupling or gear system;

5. Select a test fluid with a viscosity similar to the actual liquid to check the flowmeter or make a viscosity correction.

Fourth, the positive error of the flowmeter

Causes: 1. The flow has large pulsations or contains gas;

2, the actual liquid viscosity is greater than the viscosity of the test liquid;

3. When the inlet valve is closed, the medium is not filled with the metering chamber.

Treatment methods: 1. Reduce flow pulsation or increase gas separators;

2. Select a test fluid with a similar viscosity to the actual liquid to test the flowmeter or make a viscosity correction;

3, use the flow meter outlet valve to regulate the media flow.

Five, secondary table indicating value more than one table indicating value

This is caused by the fact that the failure is caused by the vibration of the transmitting blade, which can be solved by appropriately adjusting the pressure of the damping plate to the blade.

Sixth, secondary table indicator is less than the value of a table indicator

Causes: 1. Loosening screws at the transmitting blade;

2, sender out of step.

Treatment methods: 1, fastening the locking screw;

2. Adjust the gap between the transmitting blade and the transmitter.

Seven, the second table does not indicate

Reasons: 1. Open circuit or short circuit;

2. The transmitter is damaged.

Treatment method: 1, carefully check the line;

2, replace the sender.

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 1. Quality. Thanks to our strong R&D team, JRT Laser Distance Meter and modules have been keeping the pace with the measuring technical evolving and pioneering the industry with the unique and patented laser phase measuring solution. From the view of Accuracy, Range, Resolution, Stability, Size and Power Consumption, JRT is undoubtedly one of the best in the line.

2. Schemes of single transmit and single receive. This is one of our patents. We are the only one in the market have this technology. It helps us to reduce our cost and power consumption a lot.

3. Accuracy and Range. Our typical accuracy is ±1.0mm, and range from 40m to 150m.

4. Our laser distance meter and distance module have a high stability, especially for industrial applications.

5. Materials. We use the high performance price ratio components to guarantee the high quality along with a low price.

6. Service. All goods will be inspected and tested before shipment and have one year guarantee and a life-time after sales service. Thirdly, customers` satisfaction is the most important thing to us. If you have any problems or questions, please contact us by Trademanager, email, WhatsApp, Skype, telephone. You will get your respond within 12 hours on working days, 24 hours on holidays.

7. Size. We are keeping research on size of our Laser Distance Module , the smallest size is: 45*25*12mm, 25g for now. We are R&D a new module the size is as small as a pen.

Company Profile

Located in Chengdu, founded at 2004, Chengdu JRT Meter Technology Co., Ltd is a manufacturer and trading company,which is specialized in R&D, processing and selling laser distance meter and modules for 15 years. JRT is one of the leading companies focused on manufacturing laser distance modules in China. We can do OEM designs and make functions as customer required base on our excellent R&D team. JRT is the only factory can make laser distmeters and modules with schemes of single transmit and single receive in china, which greatly reduced our production cost. JRT always make efforts keeping manufacturing laser distance modules cheaper, smaller but with higher quality. Customers` needs are always being the most important things to our company. JRT do its best to make all customer satisfied. To do that, we are keeping improving our quality, service and technology. Making every measurement simple in life is our goal.

 

Why chose us

Chengdu JRT Meter is the factory of  manufacturing laser measure modules sensors more than 14 years.

Supporting OEM your own laser measuring tools.

Welcome to tell us your applicaiton, we are glad to help.

Industial Applicaiton:
1. Distance optional: 40m, 60m, 100m, 120m, 150m
2. Interface optional: serial port, USB, RS232, RS485, Bluetooth etc
3. Operating temperature: -10 ºC~50 ºC can be customized.

 

FAQ

Q1: What`s the delivery time after an order placed for this Handheld Laser Distance Meter?

A1: Our standard delivery is 3 days if we have stock, otherwise we will let you know in time, usually we manufacture 2000pcs a day.

 

Q2: What`s the MOQ?

A2: Regular products only 1pcs, OEM/ODM products need 1000pcs at least 

 

Q3: What`s the warranty of the meter?

A3: All our products have one year guarantee and a life-time after sales service.

 

Q4: Can I have a sample for testing?

A4: Yes. We do not offer free samples, but will reimburse the buyer once an order is confirmed.

 

After-sales Service

1. All goods will be inspected and tested before shipment.

2. Customers` satisfaction is the most important thing to us. If you have any problems or questions, please contact us by Trademanager, email, WhatsApp, Skype, telephone. You will get your respond within 12 hours on working days, 24 hours on holidays.

 

 



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