NB Woltman Wireless Remote Reading Water Meter

 

 

LXLCY-50W to LXLCY-500W (50mm to 500mm) is a wireless remote reading NB woltman water meter of low power consumption based on the wireless communication technology of narrowband cellular, with split design (the electronic parts are sealed separately and the water proof grade can be IP 68), with removable element woltman dry type meter as the base meter.

 

Features:

*The mechanical part of NB meter is woltman dry type, with the high accuracy, low starting flow rate, easy reading, long lifetime, etc.

*The meter body is iron.

*Meeting EMC/ESD/EMI, the design requirements of electromagnetic compatibility for the electronic products, reaching the industrial leading level.

*The wireless module is separated with the mechanical part, for easy maintainance.

*The electronic parts are separately sealed, and the water proof grade can be IP 68.

*Adopting the advanced technology of data coding and verification, with high communication reliability.

*NB water meter is communicating directly with NB-IOT base station, without collector and concentrator as the reading system.

*Combined by the host computer, building a remote reading management system, to ensure an automatic reading and monitoring.

*Water meter data cycle reporting: it can be set up accordingly to report the data hourly, daily, monthly, including the accumulated water volume, battery capacity, meter status as well as the reporting period.

*Convenient mechanical reading: the reading would not be affected after assembling the NB wireless module.

*Stable signal: with the NB-IOT base station, NB meters set up a network by the core network to make sure a stability of the signal.

*No wiring, and easy installation.

*Advantage of the Narrowband Cellular Technology of NB-IOT.

*Pulse: 100 L/Pulse or 1000 L/Pulse (optional)

*Low power consumption

*Deep coverage of 20 dB and gain (more penetration of a wall than 2G).

*Low cost, multilink (meter reports data directly to base station, without the help of the intermediate equipment.

*Security (adopting cloud management platform to ensure the safety of the clients)

*Reliability of internet (adopting the specific internet to ensure constant and stable operation.

*Reusing the current cellular internet (fast and cheap).

*Global standard cost and roaming.

*Electromechanical conversion error: ΔV≤±1 signal equivalent.

 

Parameters of Electronics

Item	Parameters
Frequency	800MHz,900MHz
Communication Mode	Duplex, sending and receiving
Output Power	<23dBm
Receive Sensitivity	-136dBm
Emission Current	<250mA
Receive Current	<80mA
Sleep Current	≤4uA
Visible Distance	>20Km
Communication Protocol	CoAP
Working Temperature of Module	-20ºC~+70ºC
Battery Mode and Capacity	ER26500;8500mAh
Battery Lifetime	Reporting Once Daily :about 6 years

 

 

Automatic Network Topology of NB Water Meters.

 

Standard Compliance

Technical data conforms to ISO 4064 Class B, Class C, R80, R100, R125 or R160 standard for horizontal installation.

 

Working Condition:

 

Water temperature:≤50ºC for cold water meter; ≤90ºC for hot water meter

Humility: 0~95%RH

Working Pressure: ≤1.0 Mpa.

Pressure Loss: ≤0.063Mpa.

Environment Class: B (installed inside).

Electromagnetic class: E1 (residential, commercial and ligh indurical).

Water Proof Grade: IP 68.

 

Installation requirements

*The meter should be installed in horizontal position with the direction of the flow as indicated by the arrow cast in the meter body with the register face upwards.

*Pipeline must be flushed before installation.

*The meter should be constantly full of water during operation.

 

Maximum Permissible Error

In the lower zone from Qmin(Q1) inclusive up to but excluding Qt (Q2) is ±5%.

In the upper zone from Qt(Q2) inclusive up to and including Qmax(Q4) is ±2%(cold water meter).

In the upper zone from Qt(Q2) inclusive up to and including Qmax (Q4) is ±3% (hot water meter).

MAIN TECHNICAL DATA According to ISO4064 :2003 (Old Standard)

Meter Size	Measuring	Max Flow	Nominal Flow	Transitional Flow	Min Flow	Min Reading	Max Reading
mm	class	m³/h	m³
50	B	30	15	3	0.45	0.0002	999999
65	B	50	25	5	0.75	0.0002	999999
80	B	80	40	8	1.2	0.002	999999
100	B	120	60	12	1.8	0.002	999999
125	B	200	100	20	3	0.002	999999
150	B	300	150	30	4.5	0.002	999999
200	B	500	250	50	7.5	0.002	999999
250	B	800	400	80	12	0.002	999999
300	B	1200	600	120	18	0.02	9999999
350	B	1600	800	160	24	0.02	999999999
400	B	2000	1000	200	30	0.02	999999999
500	B	3000	1500	300	45	0.02	999999999

MAIN TECHNICAL DATA According to ISO4064:2014 (New Standard)

Meter Size	Measuring	Q4	Q3	Q2	Q1	Min Reading	Max Reading
mm	R	m³/h				m³
50	63	31.25	25	0.63	0.4	0.0002	999999
65	80	50	40	0.8	0.5	0.0002	999999
80	80	78.7	63	1.26	0.79	0.002	999999
100	80	125	100	2	1.25	0.002	999999
125	80	200	160	3.2	2	0.002	999999
150	80	312.5	250	5	3.13	0.002	999999
200	63	500	400	10.16	6.35	0.002	999999
250	50	787	630	20.16	12.6	0.002	999999
300	50	1250	1000	32	20	0.02	9999999
350	50	2000	1600	51.2	32	0.02	999999999
400	50	3125	1600	51.2	32	0.02	999999999
500	50	5000	2500	80	50	0.02	999999999

Dimensions and Weight

 

Meter size	Length L	Width B	Height H	Connecting thread
mm	mm	D	Bolt circle Dia D1	Connecting bolt
50	200	256	400	165	125	4xM16
65	200	256	400	185	145	4xM16
80	225	276	400	200	160	8xM16
100	250	286	400	220	180	8xM16
125	250	301	400	250	210	8xM16
150	300	346	500	285	240	8xM20
200	350	373	500	340	295	8xM20
250	450	493	730	395	350	12xM20
300	500	516	730	445	400	12xM20
350	500	560	730	520	470	12xM21
400	600	631	830	565	515	16xM24
500	800	785	930	715	650	20xM30

 

 

 

Hot Tags: Wireless Remote Reading Water Meter, China, Manufacturers, Suppliers, Factory, Smart Water Meter, RF Card Prepayment Water Meter, Hot Type Intelligent Water Meter, RF Card Prepayment Intelligent Water Meter, Non return Valve, Controlration Water Meter