KLINGER Type LC – Electronic Oval Gear Flowmeter User Manual

KLINGER Type LC – Electronic Oval Gear Flowmeter

GENERAL INFORMATION

This manual will assist you in installing, using and maintaining an Electromagnetic Flow meter. It is your responsibility to make sure that all operators have access to adequate instructions about safe operating and maintenance procedures.

Warning

For your safety, review the major warnings and cautions below before operating your equipment.

1. Use only fluids that are compatible with the housing material and wetted components of your Electromagnetic Flow Meter.
2. When handling hazardous liquids, always exercise appropriate safety precautions.
3. When measuring flammable liquids, observe precautions against fire or explosion.
4. When working in hazardous environments, always exercise appropriate safety precautions.
5. Handle the sensor carefully. Even small scratches or nicks can affect accuracy.
6. For best results, calibrate the meter at least 1 time per year.
7. Do not purge the flow meter with compressed air.
8.  During Electromagnetic Flow Meter removal, liquid may spill.Follow the manufacturer’s safety precautions for clean up of minor spills

Unpacking and inspection

Upon receipt, examine your meter for visible damage. The meter is a precision measuring instrument and handled carefully. Remove the protective plugs and caps for a thorough inspection. If any items are damaged or missing, contact us. Make sure the flow meter model meets your specific needs. For your future reference, it might be useful to record this information on nameplate in the manual in case it becomes unreadable on the meter.

Transportati on and Handling
Do not lift the detector from the Converter housing, the junction box or the connecting cable. Use lifting lugs for larger sizes is recommended. Very large meter sizes are packed and crated with the meter laying on its side for shipping safety and stability reasons. In order to lift the meter in vertical position, it’s recommended to use a sling rigged method as shown below.

Warning: NEVER introduce the forklift, chains, wire slings or any other sharp object inside the flow tube for lifting or handling purposes.This could permanently damage the isolating liner and could render the meter inoperable.

If using a forklift, do not lift the detector from its body between the flanges. The housing could be accidentally dented and permanent damage could be caused to the internal coil assemblies.

USING

Oval gear flow meter is a pointer count accumulated round devices and light devices to zero volume flow meter is widely used in various industrial areas of the liquid flow control, applicable to all types of liquid measurements, such as crude oil, diesel , petrol and so on, with great range and high precision, convenient use and maintenance of the characteristics of different materials selected to meet the petroleum, chemical, pharmaceutical, food, metallurgy, electricity, transportation and other fields of liquid flow measurement.

THE WORKING PRINCIPLE AND STRUCTURE

Flowmeter is installed in the metering tank and the measurement of a pair of oval box gear, with the upper and lower cover an early Lunar sealed cavity (due to rotation of the gear, so sealing is not an absolute) as a unit of emissions. When measured by the pipe into the liquid flow meter, due to pressure generated by the Import and Export Department to promote a pair of differential gears for rotation, the constant measurement by cavity after the beginning of the Lunar liquid delivery to the exit, elliptical gear with each revolution time displacement is the product of four times the measured volume of liquid flow (the principle of Figure 1).

Mainly by the shell flow meter, counter, oval gear and coupling (magnetic coupling and sub­axial coupling), such as composition (structure see Figure 2).

1. counter
2.  letter device
3. precision regulator (DN50 and above only)
4. sealing the coupling
5.  the front cover
6.  Flat
7. oval gear
8. the shell 9, the rear cover

TECHNICAL DATA

1. Ordinary cast iron type (A); Steel-type (E); Stainless steel type (B); Oval gear flow meter

Mod el

Ite m

| LC-A cast iron| LC-E cast| LC-B stainless
---|---|---|---
Pnmpa| 1.0  1.6| 2.5 4.0 6.4| 1.0  1.6
Teste d liquid viscosity| 2-8 mpa.s
Measured temperature of the liquid|

-20oC-10 0o C

Input| pulse voltage

Sens or

| a. Wiegand sensor(high frequency)
b. A.H.Hall sensor(low frequency).
Display| use the Segment LCD.
Output| pulse voltage; 4~20mA
Communication interface| a. RS232
b. RS4 85
Communication protocol| Modbus

Power supply

| Battery supply; DC3.6V, the battery lasts for 2 years, the battery icon will

flash in low battery to prompt user to replace the battery.

DC 24V-DC 12V; Pulse output, 4- 20mA output, communication and automatic heating require external power supply.
Flow range m 3 /h

Mod el

Nominal size

| LC-A cast iron| LC-E cast| LC-B stainless
0.50%| 0.20%| 0.50%| 0.20%| 0.50%| 0.20%
10| 0.08-0.4| 0.1-0.4| 0.08-0.4| 0.1-0.4| 0.1-0.5| 0.1-0.5
15| 0.25-1.5| 0.5-1.5| 0.25-1.5| 0.5-1.5| 0.5-1.5| 0.5-1.5
20| 0.5-3| 0.6-3| 0.5-3| 0.6-3| 0.6-3| 0.6-3
25| 1-6| 1.2-6| 1-6| 1.2-6| 1.2-6| 1.2-6
40| 2.5-15| 3-15| 2.5-15| 3-15| 3-15| 3-15
50| 4-24| 4.8-24| 4-24| 4.8-24| 4.8-24| 4.8-24
80| 10-60| 12-60| 10-60| 12-60| 12-60| 12- 60
100| 16-100| 20-100| 16-100| 20-100| 20-100| 20-100
150| 32-190| 38-190| 32-190| 38-190| 38-190| 38-190
200| 34-340| 68-340| 34-340| 68-340| 68-340| 68-340

THE OVAL GEAR FLOW METER SIZE

(A) type of cast iron, cast iron blood type, high temperature cast iron, cast iron oval gear flow meter type deformat ion dimension

(B) of steel type, steel blood type, high-temperature steel oval gear flow meter size

Cast iron, cast steel oval gear flowmeters type high-temperature size: DN15 ~ DN25, A, B according to the table, data size plus 160mm extension tube heat: DN40 ~ DN80, A, B-size table size increases by thermal extension of 300mm pipe, rest size of the corresponding size table

(C) type of stainless steel oval gear flow meter size

FLOWMETER INSTALLATION

1. should be thoroughly cleaned before installing pipes, and pre­installed in the flow meter filter to prevent debris from entering the flow meter. Measured liquid containing gas is air separator should be installed.
2. attention the gear axis of the flow meter installed must be horizontal position. That is, the horizon should vertically dial. Regulation of traffic and start to close the valve should be installed on the meter side of the Import and Export.
3. the arrows point to the shell flow meter should be installed with the liquid pipe flow direction.
4. continuous flow of the pipeline, the level of the installation of flow meter bypass valve should be fitted with pipes, so regular cleaning and maintenance. A vertical pipe flow meter should be installed in the bypass pipe to prevent debris from falling into the instrument within.
5. flow meter installed in the right conditions, for ease of reading, according to the needs of the counter-rotating 180o or 90o installation requirements

INSTRUMENT DIAGRAM

A and B are the point of magnetic induction. When you switch display content (such as time), please use magnetic steel to across the above of A or B.

WIRING

20mA,1,2 are not connected)
Terminal3| Pulse voltage signal output
Terminal4| Communication RS485A+
Terminal5| Communication RS 485B-
Terminal6| Two-wire system 4~20mA +
Terminal7| Two-wire system4~20mA –

OPERATION

Parameter code instruction

P00-P04| Flowmeter’s pulse equivalent (unit: L). When P22 is set to 0, there is only P00 that’s validity.
---|---
P05| Maximum flow (for 4-20mA, unit: m3 / h).
P06| Instantaneous flow has back to zero time, if it’s more than this time, there’s no

signal and the time back to zero (unit: second).

P07| 4-20mA zero re-set (generally for 23, adjustable).
P08| to adjust full current (generally adjustable when 3950)
P09| to adjust the unit of instantaneous flow (m3 / h when setting as number 0, L/min. When setting as number 1)
P10| calculate circle of instantaneous flow (Unit: second)
P11-P14| Segmented value of flow meter, unit: m3 /h (use the unit when P09=0)
P15-P18| Segmented value of flow meter, unit : L/min. (use the unit when P09=1)
P19| Output pulse width. (Output high electrical level width, unit: ms)
P20| Pulse output model. (number 1 is timely pulse output, number 0 is modulated pulse output)
P21| pulse equivalent when adjusting pulse output. ( valid when parameter P20 is 0 )
P22| on­off of segmented value. (unsegmented when number 0 and coefficient is P00, segmented coefficient is P00­P04 when number 1)
P23| Correspondence Address. (0~16)
P24| Communication baud rate. ( 2400 when setting 0, 4800 when 1 ,9600 when 2 )

P25

| Indicating parameter. Indicating current flow and time when press button S and setting number 0 at the same time. Indicating total flow and time when button S and setting number 1. Indicating current flow, total flow and time when press button S and setting number 2.
P26| Return to original setting (Saving after setting 123 and exist)

Button instruction

1. There are four buttons in total inside of flow meter. The upper one is button resetting, those which
   are below of it are respectively S,+,_ from left to right and two touch- sensitive buttons A and B.

2. Outside of it is a sensor button.

3. When installing the flow meter and inserting the display board, press the reset button and then the screen starts to work.

4. hen at the working situation, press, and touch-sensitive button, and the function is the same.

5. When a working situation, uses magnetic steel to scratch outside of A and B, the screen will shift to display daily flow, total flow, and time.

Time setting

1. Press and at the same time and then unstuck them, and the screen will enter into a time setting state and flickering the year.
2. Press or and then adjust the year needed to set.
3. Press, flickering the month. Then adjust it.
4.  Adjust the date and time as above rules.
5. After adjusting the time, do as 7.4.4 instructions to save and exit the setting program.

Coefficient setting

1. When at working or holding state, press and at the same time twice, P00 flickering. The meter clock enters a state of coefficient sets. When state of time setting, press and at the same time for one time, the meter clock enters the coefficient set. s + s +
2. When parameter code PXX is flickering, press or to find the corresponding code, the below line will indicate the parameter which the code stands for. + –
3. If revising a parameter, press s to move to the location needed to be revised, press or to plus or minus the value of the parameter. + –
4. Save and then exit, press and at the same time, and then loosen the buttons at the same time, instrument showing ——–. Press and at the same time again for 3 seconds. If the instrument shows End, parameters saving succeed, and setting end; if instruments shows Err, parameters saving fail, and need to reset. + – + – e.g.Adjust P00=000.12345， as the following steps：
   • Press and twice, entering to system setting.
   • Press, the first digit flashing, and then press and, adjust to 0.
   • Press s again, adjusting the second digit to 0.
   • Infer from this, adjusting the value of P00 to 000.12345, as the step 4.4.4, saving and exciting setting.

Clear the daily flow and total flow
Clear the daily flow
Keep pressing the s key for 5 seconds till the daily flow on the screen displays 0, then loose the key to complete the procedure.

Clear the total flow
Keep pressing the ­ key for 10 seconds till the total flow on the screen displays 0, then loose the key to complete the procedure.
Remark:

• the measuring unit of daily flow is Liter, and the total flow is Cubic Meter.
• the screen will display 4 decimal places after the clearance of daily flow and total flow.
• when the numeric value on the screen is expired, the decimal point will automatically move back.
• when no decimals is expired (that is 9,999,999), it will automatically do the Clearance.

CAUTION

1. No water flow meter test.
2. o, start or stop when the gate valve should be slow to prevent a sudden shock and should prevent back flow.
3. Flowmeter repair, there shall be no demolition of the rear cover so as to avoid re-generated when the impact of changes to the precision accuracy.

Calculation and adjustment of deviation
(A) the basic error of flow meter, flow test points by the time measured were determined using the following equation: (volume method) E=Vm- V/V×100% E-meter error (generally refers to the cumulative error) the two digits. Vm­ meter measured value (that is, that value)V­, as amended, the flow meter measured the value of the standard device (that is, the actual value) from the basic formula for calculating the error, when Vm> V, the basic error of flow meter “+” value, said flow meter go faster. Vm <V, the basic error of flow meter “­” values that take the slow flow meter. In order to make the basic error in the flow meter error limit is often the need for error. That is installed in the counter through the replacement of a pair of adjustment gears (adjusted teeth) to change the mechanical transmission ratio so that the flow meter to adjust the show deserves. The error can not change the flow meter to adjust the flow characteristics so that it curves in artificially in the new coordinate system. In general, the provisions of (or actual use of) the flow range of the maximum and minimum flow test point margin of error of not more than the basic provisions of the basic error of precision limit can be adjusted through the error so that the basic error of flow meter qualified. Flowmeter has been used, the general regulation of first gear with the original error test group, and then the error in accordance with the specific error to adjust the situation further.

OTHER

1. Stainless steel flow meter for 98% sulfuric acid, 60% nitric acid, 50% liquid caustic soda and another chemical measurement.
2. The instrument with light diesel oil factory test, do not use the school, the specific order in accordance with the national metrological verification JJG235­90 oval gear flow meter standards.
3. Ordering Information
   • Name, model. Specifications, materials,
   • Medium temperature, pressure, flow range.
   • Medium or medium viscosity name.
   • Any special requirements (such as explosion-proof, etc.).
   • The name of order and delivery unit.
   • Detailed mailing address, telephone, telegraph, postal code,
   • Clearing units, the depositary bank, the account number.
   • Reached the station, contact.
   • You need to learn more about the product, please call for information.
   • Three bags of factory products, the use of follow-up maintenance period.

COMMON REASONS FOR FAILURE AND TROUBLESHOOTING

Oval gear does not tur n

| 1. Pipeline in debris. 2.

Measured liquid containing more than debris, damaged filter. Debris to enter the table, the gear stuck.

| ****

instrumentation and

piping, repairing filter.

|
Axial seal leakage coupling| Seal packing seal wear and tear or lack of oil| Pressed screw cap or replacement fill, seal oil loading|

Pointer rotation instability, or when the stop-and-go

| Indicators, such as pad volumes or loose pieces of rotating non-rotating flexible| Re-fastening, the elimination of the phenomenon of non- flexible|

Negat ive bias in small-

flow error is too large

| ****

Oval gear encounter with the metering box walls, the reasons for bearing wear, or deformat ion measurement box

| Replacement of bearings, repair of varying tooth Depar tment and gear metering box wall, so that rotat ional flexibility to ensure that the necessary clearance.| ****

School is scheduled to be repaired

Error variation is too large| Contains a large pulse of

fluid or gas.

| Pulse or retrofitted to

reduce gas separator

|
Error is too large, but the biggest difference between the minimum error does not exceed ± 1%| ****

More than the use of, or maintenance, such as changes in space

| ****

Re-adjustment of the school seizure

|

Sent a letter of no signal

| Improperly located 1 block letters| Re-adjust the position around before and after the mobile|
| ****

2, then the anti-polarity

| Into the re – ：1.“+” The n the red line 2.“-” Then the black line 。|

References

• KLINGER Danmark - Din totalleverandør

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