Three Phase Digital Ammeter

• Customization: Available
• After-sales Service: Two Years
• Warranty: Two Years
• Model NO.: LON903I
• Display: Digital
• Installation: Direct Connected
• Usage: Meter for Industry and Home Use
• Electric Equipment: Three-phase Four-wire
• Theory: Electric Apparatus
• Power Meter Connection: Terminal
• Type: Energy Meter
• Certification: ISO
• Customized: Customized
• Trademark: Linkelec
• Origin: Made in China
• HS Code: 90283012
• Production Capacity: 20000 Per Month

Product Description

Multi functional power meter

1.Product profile
Multi functional power monitoring instrument is a power monitoring instrument that integrates data acquisition and control functions, suitable for power systems of various voltage levels. This series of instruments can replace various meters, relays, transmitters, and other components. The instrument comes standard with RS485 communication and can achieve a maximum communication speed of 1.5Mbps by expanding Profibus communication, fully meeting the real-time data acquisition needs on site; Can accurately measure up to 63 harmonics; Users can achieve remote monitoring through software. The instrument is designed with humanization, and the terminals adopt a plug and play connection method, which is convenient for on-site wiring and maintenance; Provide multiple flexible and configurable expansion modules. This instrument has been widely used in various industries.

2.Product specifications

Performance Parameter	Performance Index
Accuracy Class	U, I: 0.2;   P, Q, PF: 0.5;   F: ± 0.01 HZ;   Active Power: 0.5S;   Reactive Power: 2
Display Mode	TFT Show
Mode Of Connection	Three phase three wire, Three phase four wire
Rated Voltage	AC100V,AC400V,AC690V
Frequency Range	45~65Hz
Overload Capacity	1.2Un (continuous); 2Un (10s allowed)
Measuring Range	5V~1.2Un
Functional Consumption	And 0.1VA per phase
Rated Current	AC1A ,AC5A
Frequency Range	1.2In (continuous); 20In (allowed 1S)
Overload Capacity	5 mA to 6 A (Rated 5A);1mA~1.2A (rated 1A)
Measuring Range	And 0.2VA per phase
Operating Voltage Range	AC/DC 85V~265V
Interface Form	Rs 485, Radio frequency (optional)
Protocol	The Modbus-RTU, DL 645, et al
Working Temperature	Ambient temperature: 25ºC ~70ºC, relative humidity: 95%, no corrosive gas site, altitude of 2500m
Storage Temperature	-35ºC~80ºC
High * Wide * Deep	100mm*100mm*67.5mm
Open Hole Size	90±0.5mm*90±0.5mm
Way To Install	Guide rail installation and embedded installation

3.Selection specifications

functional module	Serial number	Function points	Function point description	Multi functional power meter
Real-time measurement	1	Phase voltage	Phase voltage:Ua,Ub,Uc	-
	2	Line voltage	Line voltage:Uab,Ubc,Uca	-
	3	Voltage sequence component	Voltage sequence component:U1,U2,U0	-
	4	Phase current	Phase current:Ia,Ib,Ic	√
	5	Current sequence component	Current sequence component:I1,I2,I0	√
	6	Active power	Active power:Pa,Pb,Pc,P	-
	7	Reactive power	Reactive power:Qa,Qb,Qc,Q	-
	8	Apparent power	Apparent power:Sa,Sb,Sc,S	-
	9	Power factor	Power factor :Pfa,Pfb,Pfc,Pf	-
	10	Phase	Voltage/Current:∠Ua,∠Ub,∠Uc,∠Ia,∠Ib,∠Ic	-
	11	Frequency	System frequency:F	-
Electricity metering	12	Active energy	Bidirectional active power of phase separation and phase combination	-
	13	Reactive power	Phase separated and combined bidirectional reactive power	-
	14	Apparent electrical degree	Phase separation and combination are considered as electrical energy	-
Frozen	15	Monthly freeze	The monthly freeze date can be set from 1st to 28th, and the electric energy of the current month will be automatically recorded at midnight on each set date. It can record for 36 consecutive months	-
	16	Daily freeze	Can be frozen continuously for 365 days, with cyclic coverage	-
	17	Freeze by hour	Can be frozen continuously for 31 days and 744 hours, with cyclic coverage	-
Graphic display	18	Historical electricity consumption	Hourly, daily, and monthly historical electricity consumption bar chart	-
	19	Total active power	Trend chart, capable of recording historical waveforms of data for 31 days	-
	20	Positive active energy	Pie chart, for 12 consecutive months	-
Power quality	21	Harmonic content	The harmonic content of three-phase voltage and current is 2-31 times	-
	22	Harmonic distortion rate	Total, odd, and even harmonic distortion rates	-
	23	Out-off-balance	Voltage and current imbalance	-
	24	crest factor	Peak coefficient of three-phase voltage	-
	25	Telephone harmonic factor	Telephone harmonic factor THF	-
	26	K coefficient	Three phase current K coefficient	-
	27	Frequency deviation	System frequency deviation	-
Remote signaling	28	Entering and exiting	Having remote signaling status for input and output	○
	29	Over limit alarm	Has a remote signaling status of level 8 over limit alarm	√
Exceed the time limit	30	Over limit alarm	Level 8 over limit alarm function, capable of monitoring power parameters and remote signals, generating alarms when conditions are met, and can be linked with the output for alarm export linkage	√
Event record	31	SOE record	It has 64 SOE record functions, including switch displacement, remote control, over limit alarm, etc., and is accompanied by time stamp records	-
	32	Maximum value record	Capable of real-time statistics of the maximum and minimum values of relevant parameters (phase/line voltage, current, active power, reactive power, apparent power, power factor, frequency, demand), and recording them with time stamps	-
Clock	33	Clock	Equipped with hardware precision clock	○
Input/Output	34	Switching input	2-channel switch input, selectable as active node input	○
	35	Switching output	2-channel switch output, supports level/pulse type, supports remote control or serves as a local over limit alarm outlet	○
	36	Pulse output	Equipped with an active power pulse output port, used for accuracy detection of electric energy meters	○
Communication interface	37	RS485 communication	Standard configuration includes 1 RS485 communication channel, supporting MODBUS-RTU protocol; Support online program upgrade through RS485 interface	√
	38	Wireless Radio Frequency	Support wireless communication	○
Current transformer	39	Small current transformer	5/2.5mA, equipped with 3 small current transformers	○
Note: Blank indicates that this function is not available, "√" indicates that this function is standard, and "○" indicates that this function is optional

4.Product installation and schematic diagram

5.Solution
6.About our service           
*  We could provide 7* 24-hour phone call after-sales service. 
*  We provide a 2-year guarantee time and will change the meter for you within 1 year if there's something wrong with the product. Except for natural disasters or man-made reasons.
*  Recommend the most advanced application technology and management model in the industry to customers, and provide customers with detailed solutions.

7.Package and ship