M-Bus output water meter (LXS-15Y)

Specifications M-Bus output water meter (LXS-15Y)

1. M-Bus

2. Copper body

3. plastic cover

M-Bus output water meter (LXS-15Y) (LXS-15Y) 1   Principles The photo electric encoding water meter with the M-bus communication is popular used for the purpose of easy reading the water meter consumption.
The principle of the meter is defining special code path for each position of the character wheel. Normally the register with 7 LEDs around the wheel circle, and once the meter received the request of meter reading, it will power on the LEDS through the M-bus power, illuminate the end part of the wheel surface, so the receiver could get the Dark- Lights signal, and have the consumption data accordingly.
The photo electric encoding water meters has the features like accurate metering, non battery power etc.
The structure of the system is normally including Point to Point Reading through HHU, or one concentrator carry many water meter terminals. 2     Features 2.1 Accurate metering
One of the main differences between the encoding solution and pulse output solution is the sampling.
Normally the meter is using read switch to produce the pulse, and then use RF module to transfer the pulse, or use prepaid module to calculation the consumption.
Encoded direct remote-reading water meters do not use pulse output. When the reading device (usually is HHU) sends a request, the core component, the encoder, will be used to identify the location of character wheel, so that the actual readings of water meter can be read. The encoder works only in the reading process, so that the interference from external environment is not related to the normal metering of remote-reading system, which ensures that accurate or absolute readings can be transmitted from water meter to billing system with a full correct rate.
In additionally, unique encoding principle ensures that there is no blind zone of metering when the character wheel is at carrying status and ensure the validity and accuracy of every meter reading.
 
2.2 Non Battery Power supply
    The encoder does not need a battery, and does not need power in the interval between two readings. When the meter is read, direct power supply can be provided by the reading device, so that the abnormal operation of remote-reading system caused by "electricity" can be avoided, and the service life of product will not be affected by the limitation of battery life.
 
2.3 Easy Installation
    For installation, two data lines must be connected with M-BUS directly, without polar distinguishing, and any topological structure for wiring can be used, without complicated peripheral equipment. Therefore, the installation is simple and easy, with low construction cost.
 
2.4 Convenient management and maintenance
   An encoded direct remote-reading water meter has a unique address code, ensuring the uniqueness of data. When a failure occurs in any location in the system, other parts can run normally, and the open-circuit position and location of failed meter can be determined, facilitating the check and repair.
 
2.5 Long service life.
The unique principle of encoded remote-reading water meter keeps the electronic components of the meter in non-operating state, and they work only in the reading moment. Meanwhile, for most water meters, in periodic maintenance, the electronic components are not required to be changed, and repair can be done on the basic meter, so that the usage cost is low.  

Nominal diameter	DN	15	20	25	32	40	50
Body thread	D	G3/4B	G1B	G1 B 1 4	1 2G1 B	G2B	G2 B1 2
Connector thread	d	R1/ 2	R3/ 4	R1	R1 1 4	R1 1 2	R2
Body length mm	L	165	190	225/ 260	230/ 260	245/ 300	300
Overall length mm	L1	259	294	345/ 380	354/ 384	376/ 431	448
Width mm	W	94	94	98	98	122	145
Meter height mm	H	107.5	107.5	117.5	117.5	141.5	177
Working height mm	H1	191	191	206.5	206.5	256.5	292
Weight without connectors Kg		1.5	1.6	2.2/ 2.4	2.7/ 2.9	4.8/5.1
Weight with connectors Kg		1.68	1.88	2.72/ 2.92	3.497/ 3.69	5.84/ 6.14

Nominal diameter	DN	15	20	25	32	40	50
3Maximum flow rate m /h	Qmax	3.0	5.0	7.0	12	20.0	30.0
3Nominal flow rate m /h	Qn	1.5	2.5	3.5	6.0	10.0	15.0
Transition flow rate l/h	Qt	120	200	280	480	800	1200
Minimum flow rate l/h	Qmin	30	50	70	120	200	300
Indicating range	3m		99999.9999			999999.999
Minimum reading	3m		0.0001			0.001
Minimum scale interval	L		0.05			0.5
Pressure loss group at Qmax	bar		≤ 1

    
   Contacts:   Hangzhou Laison Technology Co., Ltd.  Add: Zhejiang University National Science Park,
No. 525 Xixi Road, Hangzhou, China  
Tel: +86 571 89715425 Fax: +86 571 89715426  Gmail: Laisontech.alex@ gmail.com Skype: alexliting Website: www.laisontech.com