Sep 15 2015

Vertical Woltman type water meter and horizontal Woltman type water meter

Vertical Woltman type water meter

Features:

1. using a special liquid packaging, the reading will stay sharp for a long time;
2. counter styles are divided into half-seal and full liquid seal two;
3. full liquid seal type: counter of liquid packaging as a whole;
4. semi-liquid seal: only wheel part liquid packaging;
5. initial flow, suitable for networks with poor water quality, is the best meter product that suits China.
6. the technical performance indicators are in line with GB/T778.1~3-1996 (the equivalent of ISO4064) b or c-level standard.
Horizontal Woltman type water meter
Definition:
Woltman type water meter is made up of helical rotor rotation around the axis of flow of a water meter. The Woltman type rotor with level swirling flow direction.
Main features:
1. counter has pointer type (c-type),, pointer and wheel combination wet (type E) and dry-type (G type) three
2. hot and cold tables (-R) options available to customers
3. simple structure
4. the flow capacity, and less pressure loss
5. technical indicators conform to GB/T778.1~3-1996 (the equivalent of ISO4064) b class
Conditions of use:
Water temperature ≤ 45 ℃ (≤ 90 ℃ hot water)
Pressure 1MPa
Maximum permissible error:
From the minimum flow (including Qmin) to the boundary flow (no including Qt) ± 5%
From the boundary flow (including Qt) to the overloaded traffic (including QS) high as ± 2% (water table is ± 3%)

Source: http://asmeter.com/

Sep 10 2015

Vertical Woltman type direct-reading remote water meter

Use

Record accumulation of piped drinking water flows through the tap water flow, and flow. Direct-reading remote transmission module the series of water mater is configured by photoelectric direct-reading meter, direct read dial readings, hundred percent meter accuracy.
Digital output signal is applied to water table monitoring system and two systems of measurement such as enterprise, efficient.
Main features

Flow performance: base table technology and production process are from Germany, unique of design guarantee has meter of low district sensitivity and high district circulation performance, WS type vertical screw wing type Big caliber meter concentrated has level screw wing type meter and spin wing type meter of advantage, used full flow detection, was measuring flow for axis to flow, low into high out, measurement precision high, especially in low flow Xia, precision above other type meter. Stainless steel built-in filtering mesh design, ensures that product long-term stability: WPHD for mega-flow measurement, shell cavity with flow function, can effectively reduce the meter before installing elbows, t-tubes, adjustable tube, water filters, valves and other interference on the measurement accuracy of the meter, disturbance flow performance of the highest level U0 and D0.
Protection grade height: Advanced copper technology, overall protection grade IP68, ensure that no damp and fog.
Accurate readings: using infrared radiation sampling, ambient light does not affect no mechanical contact Republican mechanical action, without piping or other disruption caused by the shock of read errors and data of meter reading and mechanical values are exactly the same.
Long service life: low-power design, and only read is a capture device power supply for a short time, electronic unit with shorter working hours, e-units is greater than a meter provided a strong test cycle.
Safety: electric power and water to achieve physical isolation, theater high strength to ensure security;
Implementation of the copy function: you can measure within the remote orders table data and State data out in real time. Real-time value represented by this water, to provide accurate accounting difference metrology.
Compatibility: supports a variety of standard communication interface, convenient access to a variety of management systems
Remote functions: use M-BUS or RS485 interface, achieving data transfer, internal power supply centralized monitoring water meter, read by the capture device when power supply for a short time, electronic work is relatively short, machine working life than the stronger inspection time.
Higher measurement accuracy: non-magnetic non-contact sensors. There is no external magnetic interference caused by reading out of electronic reading devices do not affect the measurement accuracy of the original instrument.

Source: http://asmeter.com/

Sep 02 2015

Large diameter horizontal Woltman type water meter and horizontal Woltman type water meter

Large diameter horizontal Woltman type water meter

Use: this meter is used to measure the amount of water flowing through the water pipes, not suitable for corrosive liquids.
Conditions of use: temperature class: T30 pressure levels: MAP 10

Installation: horizontal U5D3
Maximum permissible error: a) low (Q1 ≤ Q<Q2) maximum permissible error is ± 5% b) higher (≤ Q ≤ Q2 Q4) the maximum permissible error is ± 2%
Features:
1. design of impeller, low speed, beyond the limits of conventional WS water meter can be used for small and medium flows, so that it can be used as leading product range;
2. Design top ball bearing, dramatically increase sensitivity of the meter, a business card, you can fan a water meter;
3. convert wear point technology, free-rolling ball changing wear, wear on the top there is no scale, measuring life expectancy dramatically increase;
4. watch case back cavity designed pressure loss into the scope of horizontal Woltman type water meter;
Horizontal Woltman type water meter LXRE-(50~200) y
This product uses the impeller of low speed ball and roll the ball bearing design, resulting in greater and smaller minimum flow maximum flow; case using the recirculation cavity design, greatly reducing water pressure loss; optimized system, and with a special wear-resistant materials, the service life is longer; built-in stainless steel strainer can be removed from the installed filters.
Features:
1, the Elimination of General Woltman type water meter worm drive mechanism by magnetic coupling drive, low resistance, high transmission efficiency, starting low flows;
2, wide measuring range, particularly suitable for larger flow of occasions;
3, flow performance overall is better than ordinary Woltman type water meter
4, made of special wear-resistant materials of bearing system ensures that the water meter long service life;
5, using epoxy-coated housing and stainless steel fasteners, the maximum VCI; built-in stainless steel strainer;
6, installation dimensions the same as LXS rotor-type water meter, but performance overall than the LXS rotor-type water meter
7, can be equipped with a pulse signal output device (with a variety of pulse signal output), remote copy.

Source: http://asmeter.com/

Sep 01 2015

Verification regulation of horizontal Woltman type water meter

This regulation applies to new manufacture, use and repair of horizontal Woltman type water meter hereinafter meter) test.

A, technical requirements
1 meter of permissible error of indication shall conform to the following provisions:
1. 1 minimum to maximum flow between 10% (not including the 10%-point) is ± 5%.
1. 10% to maximum flow rate of up to ± 2 maximum flow 2%.
2 meter repeatability requirement does not exceed the meter allows the absolute value of errors.
3 meter mark, direction arrows, nominal diameter number, date of manufacture, marking and instructions, as the basic unit of “M3″.
4 meter appearance should not have obvious defects, on the disc should not scrapes, scratches, cracks, and other ills affecting the reading surface defects of glass should not interfere with reading.
5 meter counter for when the pointer, the pointer should be clockwise rotation, the pointer tip the width should not exceed 0. 8mm, referring to the tip should be able to in the shortest possible dividing range.
When a 6 meter-counter for the drum, counter wheel, digital space should be equal, arrangement height should be consistent, glyphs may not be obvious tilt. Digital fonts in drum height shall be not less than 4mm
7 meter error adjustment device. In case the adjusting hole on side shall be marked with “ten”, “a” symbol.
Parts and fittings of the 8 meter shall not be used to hinder water sanitation materials, and shall have sufficient strength. And resistant to water and atmospheric corrosion, or have a reliable corrosion protection layer.
9 meter should have available to seal the holes.
The maximum permissible working pressure up to 10 meter 10kgf/cm2, should also be able to 1. 5 times times the maximum allowable working pressure and water pressure test for strength of not less than 3 minutes, without any leakage.
Second, testing conditions
11 meter test devices for all standard, or standard table of workload can be, no matter what device, in a flow of a verification process, the water meter must be run continuously.
12 volume check timing, should be equipped with commutator. Commutator should be synchronized with the start-reading meter.
13 test meter testing device must have a valid test certificate. When the volumetric method, the cumulative flow of the device checked meter error shall not exceed permissible error of 1/3. Verification regulation of the cumulative flow error device JJG164-75 of the regulations.
14 verification of indication for water used for liquor, were brought against its minimum value must not be greater than a meter of water of 0. 5%.
15 meter showing the value verification process, you should try to exclude interference around, the water pressure is stable.
16 10% and verification for maximum flow, instantaneous flow indication error of ± 2 to be in traffic. Within 5%, and requested in the verification process, stable indication of instantaneous flow in the appropriate range.
17 water meter installation requirements
17. 1 upstream and downstream of the meter to install the necessary straight pipe or equivalent efficiency of rectifiers. The length of straight pipe upstream of not less than 10D, and raw materials not less than 5D (d is the nominal diameter of the meter).

17. 2 checked regularly by the comparison method, the standard table must be installed according to the technical requirements.
17.3 meter shaft mounting with upstream and downstream straight pipe, gasket not getting into the tube.
18 checked regularly by the comparison method, as a standard sheet of checked water meter error shall not exceed permissible error of one-third. Standard table must be stable and reliable performance, standard tables can be one, can also be connected in parallel several combinations, to meet the need of calibrating meter flow range.
Third, the verification
(A) pick up item
19 meter verification for Visual inspection, value of water pressure strength test, test repeatability and verification.
(B) inspection methods
20 appearance inspection
20. 1 new water meters must conform to the technical requirements of BJ2364-78 standard. Meanwhile, shall conform to the provisions of the present Statute 2-9.
20. 2 meter of repairs should be coated with a reliable protective layer.
21 hydrostatic strength test
New water meters must be hydrostatic strength test method: pressure test meter mounted on the stage, first water excluding water meters in the air, then water static pressure of 1.5 times the maximum allowable working pressure on the water meter lasts not less than 3 minutes there shall be no leakage.
22 repair and periodic checking of the calibration of the meter seal, should ensure maximum pressure without leaking.
23 when the meter indication test using the volumetric method:
23. Recorded for 1 meter of water and water after water meter people the actual workload, and according to the following formula to calculate allowable error of indication for water.
23. 2 installed on the test bench a meter, water meter allows maximum flow of water, remove water pipes listed in the air, and turns the meter pointer is stationary for some time. Then adjust the flow of water to flow under, and workload for the water to zero or a dividing line, start the commutator switch current to hold the human work. Meanwhile, record water meter the starting value. When the meter pointer reaches a predetermined indexing, and then switch the flow, static water level readings for the workload, workload record water meter run and the actual water.
24 each meter shall test the maximum (or rated) 10% flow, maximum flow and minimum flow, shall not exceed the value of its error code provisions of 1th.
25 water accumulated on the provisions on verification of meters minimum-bit pointer operation less than a full circle, and timing of water corresponding to not less than 1 minute. The verification flow, water and the specific requirements of value acceptable errors as shown in appendix table 1.

Max 26 for water sampling (or rated) flow, maximum flow of 10% and minimum flow indication of verification must be carried out twice, each time shall not exceed permissible error of indication and absolute value shall not exceed the meter repeatability tolerances.
27 is indication when using comparison testing of the water meter:
27. 1 should link up the standard and the test meter, each after a certain quantity, compare instructions.
28 if the verification results when there is doubt, verification shall be subject to a higher precision of the device as standard.
Four, calibration results processing
Certified in accordance with the code requirements for water meters, stamped with the seal, issued calibration certificates.
Under normal circumstances, 30, water meter calibration interval of one year. If used less frequently, can also run according to how much water, prolonged, but not more than two years.

Source: http://asmeter.com/

Aug 31 2015

An introduction to horizontal Woltman type water meter

Horizontal Woltman type water meter, also known as Turbo water meter, refers to the kind of meter screw rotor axis parallel to the water pipe axis (or overlap), the impeller screw wing shape. This is not to say that the meter can only be installed horizontally. Of course, if the water meter is required when installed vertically, you should select in the inlet side of the screw shaft bearing bore with gem meter end bearing to reduce friction resistance and prolong the life of the meter. Some imported Woltman type water meter models using dynamic balance technology, can work in horizontal, inclined and vertical position, but in the non-working level meter level to reduce the level of measurement.

Case, cover, table in glass

Case, cover, table in glass and sealing gasket together to form a sealed body, in case water is not to be measured leakage to the outside. According to the standard requirements, 1.6MPa, 15min water meters should be able to withstand water pressure and water pressure 2. OMPa, 1min pressure test. Therefore, table covers and table in the shell, glass should meet the above requirements. Table shell hole should be decorated with lining made of corrosion-resistant materials or coated with good rust coating.
Rectifier
Rectifier effect: one is from upstream in the turbulent state of the water meter flow rectifier in grid-shaped, as far as possible be “grooming” laminar flow; the second is the rectifiers have a hole in the Center to support the screw shaft, the shaft hole and the hole on the bracket should maintain the same shaft, in order to ensure flexible screw wing rotation.
BRACKET
Support role: on the one hand supported screw shaft, flexible rotating screw wing in current action; the other hand through the stent worm gears is meshing with the worm on the screw shaft, speed of screw wing is connected to the upper part of the bracket and count bodies.
Lo Wing
Woltman type water meter water meters using screw-shaped impeller, also known as a screw or wing wheels, general use of sufficient mechanical strength of engineering plastics (ABS) injection molding. Screw the wing tube is hollow to reduce weight and increase buoyancy. Screw one end of the wing has a cap with adhesive bonding, lest they should be measured after water immersion to increase their weight. Lo Wing should have better dynamic balance performance, or at high speeds, easy to screw shaft and bushing wear.
Error adjusting device

Adjusting device there are two common errors.
(1) paddle error adjustment device
Part of this adjustment device is a flat and symmetrical paddle-shaped control plate, located in rectifying plate part of the rectifier. When the rotating paddle-shaped control plate, you can increase or decrease these parts flow on screw rotating impact, so as to error control. Error adjustment of paddle-shaped device has a simple structure, fewer parts and is easily processed and the advantages of easy disassembly, so widely used.
(2) the Steering error adjustment device
Part of this adjustment device is a flat plate, one side of the plate has a hole, put the adjustment plate rectifier rectifier Board part of the shaft. Adjustment error, there is a shaft pulling the rudder adjustment plate on the other side, make the adjustment plate around the axis of rotation, to increase or reduce the impact of this flow on screw rotating, which play a role in error adjustment. The adjusting device structure is more complex.

Source: http://asmeter.com/

Aug 28 2015

Verification regulation of horizontal Woltman type water meter

This regulation applies to new manufacture, use and repair of horizontal Woltman type water meter hereinafter meter) test.

Technical requirements
Permissible error of indication of the meter shall comply with the following provisions:
From minimum to maximum flow between 10% (not including the 10%-point) is ± 5%.
Max 10%-max ± 2%.

Repeatability error of the meter requires no more than a meter allows the absolute value of errors.
Water meter mark, direction arrows, nominal diameter number, date of manufacture, marking and instructions, as the basic unit of “M3″.
Water meter look should not have obvious defects, on the disc should not scrapes, scratches, cracks, and other ills affecting the reading surface defects of glass should not interfere with reading.
Meter counter for when the pointer, the pointer should be clockwise rotation, the pointer tip the width should not exceed 0. 8mm, referring to the tip should be able to in the shortest possible dividing range.
When the meter-counter for the drum, counter wheel, digital space should be equal, arrangement height should be consistent, glyphs may not be obvious tilt. Digital fonts in drum height shall be not less than 4mm
Water meters should have error adjustment device. In case the adjusting hole on side shall be marked with “ten”, “a” symbol.
Water meter replacement parts and fittings shall not be used to hinder water sanitation materials, and shall have sufficient strength. And resistant to water and atmospheric corrosion, or have a reliable corrosion protection layer.
Water meters should be holes for seals.
Water meters of the maximum allowable working pressure is 10kgf/cm2, also should be able to withstand 1. 5 times times the maximum allowable working pressure and water pressure test for strength of not less than 3 minutes, without any leakage.
Test conditions
Meter test devices for all standard, or standard table of workload can be, no matter what device, in a flow of a verification process, the water meter must be run continuously.
Volumetric method timing, should be equipped with commutator. Commutator should be synchronized with the start-reading meter.
Test device for testing water meters must have a valid calibration certificate. When the volumetric method, the cumulative flow of the device checked meter error shall not exceed permissible error of 1/3. Verification regulation of the cumulative flow error device JJG164-75 of the regulations.
Verification of indication for water used for liquor, were brought against its minimum value must not be greater than a meter of water of 0. 5%.
Water meter showing the value verification process, you should try to exclude interference around, the water pressure is stable.
For 10%-and following verification of the maximum flow, instantaneous flow indication error of ± 2 to be in traffic. Within 5%, and requested in the verification process, stable indication of instantaneous flow in the appropriate range.
Water meter installation requirements
Upstream and downstream of the meter to install the necessary straight pipe or equivalent efficiency of rectifiers. The length of straight pipe upstream of not less than 10D, and raw materials not less than 5D (d is the nominal diameter of the meter).
Using comparison method timing, standards must be installed according to the technical requirements.
Water meter shaft mounting with upstream and downstream straight pipe, gasket not getting into the tube.
Using comparison method timing, as the standard error should not exceed third of the tested meter tolerance standards must be stable and reliable performance, standard tables can be one, can also be connected in parallel several combinations, to meet the need of calibrating meter flow range.
Verification
Picking up items
Water meter verification for Visual inspection, value of water pressure strength test, test repeatability and verification.
Verification method

Appearance inspection
Repair of water meters should be coated with a reliable protective layer.
Water pressure test for strength
New water meters must be hydrostatic strength test method: pressure test meter mounted on the stage, first water excluding water meters in the air, then water static pressure of 1.5 times the maximum allowable working pressure on the water meter lasts not less than 3 minutes there shall be no leakage.
After repairs and periodic testing of water meter seal check, should ensure maximum pressure without leaking.
When the meter indication test using the volumetric method:
Will be recorded by the meter of water and water after water meter people the actual workload, and according to the following formula to calculate allowable error of indication for water.
Installed on the test bench a meter, water meter allows maximum flow of water, remove water pipes listed in the air, and turns the meter pointer is stationary for some time. Then adjust the flow of water to flow under, and workload for the water to zero or a dividing line, start the commutator switch current to hold the human work. Meanwhile, record water meter the starting value. When the meter pointer reaches a predetermined indexing, and then switch the flow, static water level readings for the workload, workload record water meter run and the actual water.
Each meter shall test the maximum (or rated) 10% flow, maximum flow and minimum flow, shall not exceed the value of its error code provisions of 1th.
The sampling of water meters maximum (or rated) flow, maximum flow of 10% and minimum flow indication of verification must be carried out twice, each time shall not exceed permissible error of indication and absolute value shall not exceed the meter repeatability tolerances.
Meter shows values when using comparison testing:
Standard table and the test meter should be linked, each after a certain quantity, compare instructions.
The verification results when there is doubt, verification shall be subject to a higher precision of the device as standard.
Verification results
Certified in accordance with the code requirements for water meters, stamped with the seal, issued calibration certificates.
Under normal conditions, water meter calibration interval of one year. If used less frequently, can also run according to how much water, prolonged, but not more than two years.

Source: http://asmeter.com/

Aug 24 2015

Horizontal Woltman type water meter product profiles and horizontal Woltman type water meter applications range

Horizontal Woltman type water meter product brief

The WS series of horizontal Woltman type water meter vertical Woltman type wide range of large diameter water meters are mainly used for measurement of total amount of water flowing through the pipes. Water meters without a worm gear, directly driven impeller counter, wired remote, M-BUS/RS485 interface and standard communication protocol used, normal working voltage from the bus power supply DC24V, high transmission efficiency, low initial traffic, measuring range, high accuracy. Detachable metering movement structure, convenient maintenance. Water meters of this series can increase M-BUS/RS-485 or wireless remote controller interface, easily upgrade from a mechanical meter to remote water meter.

Vertical Woltman type water meter is the Woltman type water meter, velocity type meter, suitable for use in large-diameter pipe, which is characterized by large flow capacity, small pressure loss. As with the rotor-type water meter, Woltman type water meter is a kind of velocity type meter. When water flows after the water meter, along the axis of impulse water meter Lo Wing-shaped impeller discharge, impeller speed is proportional to the flow velocity, after after the reduction gear drive, displays the total quantity of water through a water meter on the indicating device. Woltman type water meter into horizontal Woltman type water meter and horizontal Woltman type water meter type. Domestic uses most of the tables was horizontal Woltman type water meter for industrial use.
Horizontal Woltman type water meter product applications:
Horizontal Woltman type water meter suitable for water supply companies and monitoring of water resources management of water, is widely used in water plants, water Division, for sewer, water metering and trading settlement.
Four, vertical Woltman type water meter product advantages:
1, detachable metering movement structure, without having to replace the base table to facilitate maintenance and replacement;
2, shell replacements, shell back can increase the Intelligent remote modules, easily make the upgrade from mechanical table to the remote table;
3, choice, freedom to choose electrical readings, wired remote, wireless remote-type;
4, wireless remote with special 470MHz~510? MHz band, internal 3.6V lithium battery provides power, battery for more than 8 years;
5, timing, location of remote water information for copying;
6, jurisdiction of all water meters can be queried through a computer daily, monthly amount, losses of information;
7, with the report output, contain premium statistics, debt statistics, report storage functions such as account statistics: water meter data can be saved after a power failure for more than 10 years.

Source: http://asmeter.com/

Aug 21 2015

Technology and background in the field of horizontal Woltman type water meter technology

This practical new public has a level screw wing type meter, impeller of side for and impeller a poses forming of first axle, first axle near impeller of end is cone Taiwan-like, impeller of another side tight tie installation has second axle (, second axle for for drive institutions of worm axis; it also including two balance block, two balance block respectively set Yu is located in impeller of sides of installation cavity body; impeller of leaves of number for 9 tablets, leaves of guide drive for 350~400mm, leaves side of side upper has tilt surface. The structure of horizontal Woltman type water meter is compact, impeller equilibrium of good, good movement between shell and coated, high flow capacity greater, more accurate.

Technical field
The utility model relates to the water meter field, with special reference to a horizontal Woltman type water meter.
Background art
Horizontal Woltman type water meter speed meter, suitable for use in large-diameter pipe, which is characterized by large flow capacity, small pressure loss. When water flows after the water meter along the axis direction of impact around the shaft rotation of the impeller discharge, impeller speed is proportional to the flow velocity, after after the transmission the transmission, displays the total quantity of water through a water meter on the indicating device. Woltman type water meter into horizontal Woltman type water meter and horizontal Woltman type water meter type. Domestic uses most of the tables was horizontal Woltman type water meter for industrial use. Horizontal Woltman type water meter, because of its wide range of measuring flow, parts versatility, installation and maintenance can keep water features, such as the case of the split table, was welcomed by the users. Existing horizontal screw wing mainly consists of both ends, respectively, with detachable water meter inlet and outlet of shell, mount, the former after rectifiers, Rectifier, impellers, drive mechanism and located in Mount detachable connections into the count at the top of table. In the presence of water balanced impellers installed and dangling between the diffuser rotating, which means that the smooth running of the impeller on the water meter range, sensitivity, accuracy and throughput capacity, and other important parameters are affected. Once the axles for excessive wear of the impeller, impeller rotation runout will occur, thus seriously affecting the balance of impeller rotation. Therefore, the impeller shaft wear is also particularly important. Horizontal Woltman type water meter in the existing technical concerns about the rotating impeller equilibrium is not obvious, the existing flows of horizontal Woltman type water meter and the precision is difficult to break, become the bottleneck. And existing technology of horizontal Woltman type water meter casing coated with nature and movement is not good, water concentration through the impeller cannot be guaranteed, and someEffect on the flow of water meters and precision.

Source: http://asmeter.com/

Aug 20 2015

Vertical Woltman type water meter

Vertical Woltman type water meter Description:

The WS series of horizontal Woltman type water meter vertical Woltman type wide range of large diameter water meters are mainly used for measurement of total amount of water flowing through the pipes. Water meters without a worm gear, directly driven impeller counter, wired remote, M-BUS/RS485 interface and standard communication protocol used, normal working voltage from the bus power supply DC24V, high transmission efficiency, low initial traffic, measuring range, high accuracy. Detachable metering movement structure, convenient maintenance. Water meters of this series can increase M-BUS/RS-485 or wireless remote controller interface, easily upgrade from a mechanical meter to remote water meter.

Vertical Woltman type water meter is the Woltman type water meter, velocity type meter, suitable for use in large-diameter pipe, which is characterized by large flow capacity, small pressure loss. As with the rotor-type water meter, Woltman type water meter is a kind of velocity type meter. When water flows after the water meter, along the axis of impulse water meter Lo Wing-shaped impeller discharge, impeller speed is proportional to the flow velocity, after after the reduction gear drive, displays the total quantity of water through a water meter on the indicating device. Woltman type water meter into horizontal Woltman type water meter and horizontal Woltman type water meter type. Domestic uses most of the tables was horizontal Woltman type water meter for industrial use.
Third, horizontal Woltman type water meter application range:
Horizontal Woltman type water meter suitable for water supply companies and monitoring of water resources management of water, is widely used in water plants, water Division, for sewer, water metering and trading settlement.
Four, vertical Woltman type water meter product advantages:
1, detachable metering movement structure, without having to replace the base table to facilitate maintenance and replacement;
2, shell replacements, shell back can increase the Intelligent remote modules, easily make the upgrade from mechanical table to the remote table;
3, choice, freedom to choose electrical readings, wired remote, wireless remote-type;
4, wireless remote with special 470MHz~510? MHz band, internal 3.6V lithium battery provides power, battery for more than 8 years;
5, timing, location of remote water information for copying;
6, jurisdiction of all water meters can be queried through a computer daily, monthly amount, losses of information;
7, with the report output, contain premium statistics, debt statistics, report storage functions such as account statistics: water meter data can be saved after a power failure for more than 10 years.

Source: http://asmeter.com/

Aug 07 2015

Woltman type water meter and rotary-wing type water meter differences?

Woltman type water meter, also known as v Terman (Woltmann) water meter is a kind of velocity type meter, suitable for use in large diameter pipes (DN80-DN200), which is characterized by large flow capacity, small pressure loss.

With rotor-type water meter (DN15-DN65), Woltman type water meter is a kind of velocity type meter. When water flows after the water meter, along the axis of impulse water meter Lo Wing-shaped impeller discharge, impeller speed is proportional to the flow velocity, after after the reduction gear drive, displays the total quantity of water through a water meter on the indicating device.

Woltman type water meter into horizontal Woltman type water meter and horizontal Woltman type water meter type. Domestic uses most of the tables was horizontal Woltman type water meter for industrial use. -Removable horizontal Woltman type water meter (dry-type), because of its wide range of measuring flow, parts versatility, installation and maintenance can keep water does not remove table features, has become one of the series, was welcomed by the users.
Horizontal Woltman type water meter (Woltman type water meter): horizontal Woltman type water table, horizontal Woltman type water meter, level screw wing detachable water table, horizontal screw wing detachable hot-water table.
Horizontal Woltman type cold (hot) water meter counter (surface) for wet and water pipe water directly connected.
Horizontal screw wing detachable cold (hot) water meter counter (surface) for dry-not connected with the water pipe water through magnetic means.
Horizontal Woltman type water meter impeller rotation direction and the direction of flow is horizontal it is called horizontal Woltman type water meter.
Horizontal Woltman type water meter features: work range, easy installation and maintenance, small size, low sensitivity is mainly used in large-diameter pipes, produced by domestic manufacturers of horizontal Woltman type water meter diameter to 80mm–200mm,250mm–600mm only a handful of big companies.
Rotary-wing water impeller rotation direction perpendicular to the direction of flow is.
Rotor type water meter can be divided into many types are:
Counters can be divided into: c-type and e-type.
Suitable medium: water meter, water meter.
Works can be divided into: wet, dry, liquid, semi-liquid sealing.
Installation: horizontal, vertical, and so on.
Rotor type water meter features: narrow operating range, large size, installation and maintenance of high sensitivity with reduced mobility is mainly used for small diameter pipes, ranging in size from 15mm-150mm.

Source: http://asmeter.com/