R9 Power Monitoring Unit วัดไฟฟ้า/Flow/Counter เก็บค่าได้ ต่อ SCADA ได้จากM-System Print

วัดและเก็บข้อมูลการใช้ไฟฟ้าด้วย R9 Power Monitoring Unit สามารถเชื่อมต่อ SCADA ผ่าน Modbus RTU/Modbus TCP หรือต่อกับอุปกรณ์อื่น ๆ ได้ทั้ง Modbus RTU/Modbus TCP/CC-Lnk/LON Work มีDiscrete IOใช้ควบคุมวงจรภายนอกได้ ไม่ต้องใช้ถ่าน ข้อมูลเซตอัพไม่หายแม้ไฟดับ(ใช้non-volatile memory) รับPulseเช่นจาก Flow meter, PLC/Counter ได้ทำให้ใช้วัด/เก็บค่า FLOW หรือ Counter จากกระบวนกการผลิตได้

model: R9xWTU



  • วัดไฟฟ้าแรงดันสูงได้สูงสุด 8 วงจรแบบ Common Voltage Input
  • ใช้ได้กับระบบไฟฟ้า Single-phase/2-wire และ 3-wire, Three-phase/3-wire
  • เซตอัพง่าย ใช้ร่วมกับ Clamp-on current sensors
  • วัดกระแสไฟฟ้าโดยเลือกสัญญาณอินพุตได้ตั้งแต่ 5 ถึง 600 A
  • สามารถเก็บข้อมูลพร้อมTime-stamp ใน SD Card
  • มี Extension unit เพื่อควบคุมวงจรไฟฟ้าภายนอก ( 8 discrete I/O) หรือต่อพ่วงกับ R9 ตัวอื่นๆแบบ Multi drop


Network Function



Modbus RTU



Modbus TCP (Ethernet)









Multi-channel Power Monitoring



model: R9WTU-EP

model: R9WTU-ED

  • Specification Sheet


  • Specification Sheet




The R9 Series Power Monitoring Unit is a compact all-in-one module that can measure up to 8 heavy current circuits with a common voltage input. An extension unit for additional 8 circuits (model: R9WTU-EP) can be attached to the side of basic unit. At the maximum of 16 measuring input unit provides for cost-effective multi-channel power monitoring solution for office buildings and manufacturing plants.

A discrete I/O extension unit (model: R9WTU-ED) is also available for 8 pulse inputs and 8 contact outputs. Pulse count signals such as gas/air pressure and water flow from other utility equipment, and production unit count signals can be taken in all together to the R9 unit for use with energy consumption rate calculation and energy efficiency improvement analysis of an entire manufacturing line.



Clamp-on Current Sensor Input




model: CLSE

  • Specification Sheet


Current sensors that can take in a flexible range of 5 to 600 amperes directly to the unit can be fitted easily without need of extensive installation work. They are purchased independently to minimize introduction cost of the energy monitoring system that can be expanded later when more measuring points are needed.

Offline Monitoring


clip_image004The unit is equipped with a SD memory card slot. Data stored in its internal memory are transferred to the card at 0 minute every hour. A 4-GB SD memory can store information of 8 channels for approximately 16 years.

Energy (watthour) and pulse count input data per hour for each channel are stored with date/time. Voltage, current and power in addition to energy and pulse count per minute are also stored. All data are exported to the SD memory card every hour and saved in a CSV format file.


Online Monitoring


clip_image005Modbus RTU, Modbus TCP (Ethernet), CC-Link or LONWORKS interface types are available as standard. All parameters can be polled from a SCADA system on the PC: current, voltage, active/reactive/apparent power, power factor, frequency, active/reactive/apparent energy, harmonic distortion and date/time.

Contact outputs at the discrete extension I/O unit can be controlled from the host via the network for alarm and external count purposes.




Single-phase/2-wire and 3-wire, three-phase/3-wire

Voltage input

Delta voltage: 400V AC (line to line)
Phase voltage: 230V AC (line to neutral)
Selectable primary range: 50 to 400000V

Current input

Clamp-on current sensor model CLSE: 5A, 50A, 100A, 200A, 400A and 600A
Selectable primary range: 1 to 20000A

Auxiliary power supply

100-240V AC or 110-240V DC

Operating temperature

-10 to +55°C (14 to 131°F)

Operating humidity

30 to 90% RH (non-condensing)


Surface or DIN rail

Accuracy (except current sensor accuracy)

Voltage, current, power: ±0.5% of rating
Energy: ±1%
Power factor: ±1.5%
Frequency: ±0.1% of rating
Harmonic contents: ±2% of rating

Sampling time

Harmonic contents & frequency: 1 sec. or less
Other: 500 msec. or less

Insulation resistance

100 MΩ or more with 500V DC

Dielectric strength

1500V AC @1 minute


Basic unit: 125x122x80 mm (4.92”x4.80”x3.15”)
Extension unit: 93x122x80 mm (3.66”x4.80”x3.15”) when attached to the basic unit 
(DIN rail mount)

Recommended SD card

Hagiwara Sys-Com NSDA-004GT
Apacer Technology AP-ISD04GIS4B-T






Application Example





R9 Power Monitor: ลักษณะการเก็บข้อมูลในSD Card


Product Bulletins (R9 Series)
A4: PDFLetter: PDF
Data Sheet