Material: Brass Body with Plastic Cover
Model Number:LXSG
Valve Control:with Valve Control  /  no Valve Control
Nominal Size: 15/20/25
Type:Horizontal

Product Introduction

1.High performance GSM low power consumption wireless data transmission module.
2.Advantages:Low power consumption, stable performance, small size and high cost performance.
3.It is beneficial to the installation and use of the user equipment and system.
 
Product  Features

1. The current of dormancy is less than 2uA,Battery power supply 2800MAH.
2.The Automatic wake-up function is regular, and the wakeup cycle can be customized by users. 
3. Multiple power supply modes.
4. Caliber materials can be customized，You can choose the prepayment, the switch valve and other functions.
5.Support chip SIM card.
6. EMC anti-jamming design, adaptable to environmental ability.
7. The working frequency is 850/900/1800/1900MHz and the four frequency can be applied to all countries in the world, including North and South America.
8. Advanced and strict data communication protocol is equipped with error correction and encryption.

Electromagnetic Interference

At present, most electronic devices have taken electromagnetic protection measures, but the old equipment may not take appropriate protection measures, the radio frequency energy radiation may fail. When using the GPRS low power remote meter, the equipment in the near range should be checked if the electromagnetic protection is done.

Product Parameters

DN(mm)	Length1	Length	Width	High	Connection	Thread
	mm				D	d
15	165	259	78	99	G 3/4B	R1/2
20	195	299	78	99	G1B	R3/4
25	225	345	83	99	G5/4B	R1

 
Electrical parameters 
 

Working Voltage	DC1.8V-4.2V （Low Voltage Working Mode ）
Power Dissipation	< 1.25uA
Dormancy	<100mA
Working Temperature	-35℃～80℃
Storage Temperature	-40℃～85℃
Relative Humidity	20%~ 95%（Non-condensing）

Flow Range

DN(mm)	Just Water Meter	15	20	25
Overload flow-rate（Q4）m3/h	1.25	3.125	5.00	7.875
Permanent Flow-rate（Q3）m3/h	1.00	2.50	4.00	6.30
Transitional Flow-rate（Q2）m3 /h	0.01	0.05	0.08	0.126
Min. Flow-rate（Q1）m3 /h	0.00001	0.0313	0.05	0.0788
Flow-rate Range(Q3/Q1)	160/80		80
Range of error	Small flow：≤±5% Permanent Flow-rate：≤±2%（Cold water）、≤±3%（Hot water）
Readings range	0.00001~99999.99999		0.0001~99999.9999
Working  Temperature	0.1℃~30℃		Cold water meter：0.1℃~30℃ Hot water meter：0.1℃~90℃

Frequency Range: GSM850MHz/EGSM   900MHz/DCS1800MHz/PCS1900MHz
      GPRS Multi-slot Class 12
      GPRS Mobile Station Class B
      GPRS code：CS1~CS4
 
Power Waste：Sleep mode：< 1.25uA 
     Talk mode（GSM900,PCL=5）：<80mA
     Data mode（GSM900,PCL=5,Class12）：<100mA
 
Sensitivity：GSM 850 ≥ -106dbm
        EGSM 900 ≥ -106dbm
        DCS 1800 ≥ -106dbm
        PCS 1900 ≥ -106dbm
 
Compatible standard AT instruction (GSM07.05 and 7.07)
Support ALT extension instructions
Embedded TCP/IP protocol

INSTALLATION.

1. The caliber of water meter shall be based on the size of the pipeline and the usual used water flow is no more than common flow of the water meter; and the installation location shall be avoided insulation , flooding, freezing and pollution, and convenient for installation, removing and reading data. 
2. The sands and stones and other sundries in the pipeline, such as hemp thread shall be cleaned firstly in Case of water meter breakdown.
3. Please leave enough space for repairing, and installation according to water flow direction on the pipe. 
4. Please do not apply too much force when connecting the water meter and pipe, to avoid damaging the meter body and leakage. 
5.If the water meter is installed on the inlet of the boiler, shall install check valve on the outlet of water to prevent the return current of hot water and steam from damaging the water meter

NOTE

1.Don't hide with metal objects, according to the specifications.
2.It's strictly forbidden to dismantle the table privately, otherwise the consequences will be conceited.
3.Our company will optimize products according to the situation every year, and we can't inform customers one by one. Our company has the right of final interpretation of product functions.
4.If you have any problem, please connect us, we will solve it as soon as possible. Thank you!