This series meter has all the functions of SFDB series digital programmablemeters. It can measure almost more than 30 electrical parameters including of three-phase voltage, three-phase current, active power, reactive power, apparent power, frequency, power factor and 4-quadrant energy etc; It displays through 3-row 4-digit or 2-row 6-digit LED nixietubes or LCD screen. It is added with keyboard parameters such as alarm and transmitting output object, alarm delay time, display object and cycle display time and 2-channel electric energy pulse outputs, 4-channel switching value input and 4-quadrant energy measuring functions. The alarm(or switching value)output and transmitting output can enlarge to four channels.
Basic Parameters:
Input Parameters:
Rated voltage: AC 57.7V, 100V, 220V, 380V
Rated current: AC 1A, 5AFrequency range: 45~65Hz
Input network: 3-phase3-wire, 3-phase4-wire
Accuracy of measurement:
Voltage, current, active power. Reactive power, apparent power: ± 0.5%
Frequency: ± 0.1Hz Power factor: ± 0.01PF
Active electric energy: ± 0.5% reactive electric energy: ± 2.0%
Start: On the condition of rated voltage, reference frequency and COSΦ =1.0,
When load operational current is 0.001In, it can start and measure
The electrical quantity continuously.
Creep: When exerting 115%rated voltage and no current in the current
Circuitry, the instrument is with no electrical quantity accumulation
And pulse output.
Output parameters:
Pulse output: Open-collector optical coupling output, open-collector voltage
VCC≤ 48V, current Lz≤ 500mA
Pulse constant: 10000imp/kWh or 10000imp/kvarh. The meaning is: The
Pulse output 10000imp when the meter accumulate to
1kWh, it stresses that, 1kWh is quadratic electric quantity
Data of elecric quantity. Under the cndition of PT and CT,
The N pulse data responding the primary electric
Energy=1kWh× PT ratio× CT ratio
Alarm(or switching value)output: 4-channel relay normally open contact
Output, 30VDC/1A, 240VAC/1A(resistive load)
Switching value input: 4-channel dry contact(built-in+5V source)
Analog quantity transmitting output: Can provide4-channel outputs at the same time
Output range: DC 0~20mA/4~20mA programmable
Accuracy: ± 0.5%
Overload: 120% actual output, Max current is 24mA
Load: ≤ 400Ω
Communication interface: RS485 serial
Communication, applying MODBUS_RTU communication protocol
Company Introduction
Zhejiang tianqi electric Co., Ltd., with 10 years experience in electrical industry, is one of the leading manufacturer of distribution boxes and panel meters in China. Founded in China 1998, located in the beautiful land scape of the largest China bamboo sea in anji economic development zone which place is in the north of zhejiang, covers an area of 100, 000 square meters and has 500 employees.
T&j's product range consists of wall mounting enclosures, floor standing cabinets, stainless steel enclosures, plastic enclosures, terminal boxes, power distribution cabinets, floor standing modular cabinets, console systems, analog panel meters, digital panel meter, DIN rail panel meter, current transformer, shunt.
We also got the quality system certificate of CE, rosh, IP65 and ISO 9002 for our products. It has established the good commercial relations with America, west-europeam, east-Asia, Africa etc.
All kinds of electronics products and its accessories will be designed and manufactured according to the customer' s special requirement.
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