Related Manuals for FRIENDCOM FC-702C
Summary of Contents for FRIENDCOM FC-702C
- Page 1 FC-702C Ultrasonic Water Meter User Manual（05） LoRaWAN Terminal Series Version 1.1 Date: 2021-01 www.friendcom.com...
- Page 2 However, Friendcom assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein. Friendcom reserves the right to make changes to any products described herein and reserves the right to revise this document and to make changes from time to time in content hereof with no obligation to notify any person of revisions or changes.
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Page 3: About This Document
FC-702C Ultrasonic Water Meter User Manual About This Document Scope Scope of this document is to present features and application of Friendcom FC-702C Ultrasonic Water Meter Audience This document is intended for system engineers (SEs), application engineers, and test engineers. - Page 4 FC-702C Ultrasonic Water Meter User Manual History Issue Date Change 2020-12 Initial draft Upgrade the Magnet activation position 2021-01 Upgrade the server platform information. Page 3 / 22...
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Page 5: Table Of Contents
5.2.3 Poor Installation (Horizontal)......................18 5.3 Common Examples of Incorrect Installations....................19 5.4 Daily Maintenance............................21 6 Transportantion and Storage.............................21 Table Index Table 2- 1 Specifications of FC-702C Ultrasonic Water Meter................7 Table 3- 1 Format of commands........................11 Figure Index Figure 4- 1 Magnet activation position......................15... -
Page 6: Introduction
If not so, Friendcom assumes no liability for customers’ failure to comply with these precautions. Full attention must be given to driving at all times in order to reduce the risk of an accident. -
Page 7: Key Features
Full Pipe for Drinking Cold Water Meter and Hot Water Meter" and the verification regulations of "JJG 162-2009 Cold Water Meter". Key Features The following shows the key features of FC-702C Ultrasonic Water Meter. Valve integrated on the meter, fully wrapped structure, anti-damage ... - Page 8 FC-702C Ultrasonic Water Meter User Manual Table 2- 1 Specifications of FC-702C Ultrasonic Water Meter Specifications Description Operating temperature: -40 °C to +70 °C Operating conditions Operating humidity: 5%RH to 95%RH Cumulative volume resolution 0.001M (at use) 0.00001M (at verification) Current flow resolution 0.001 m3/h (when in use) 0.001 m3/h (when verification)
- Page 9 FC-702C Ultrasonic Water Meter User Manual Diameter range DN15 ~ DN25 DN15: 2.5 m DN20: 4.0 m Commonly used traffic Q3 DN25: 6.3 m Tx Power: Max. 20dBm Radio characteristics Rx Sensitivity: < -138dBm Communication range Up to 15km (In visibility conditions)
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Page 10: Data Format And Setting Command
FC-702C Ultrasonic Water Meter User Manual Data Format and Setting Command Data Format of Reporting Ultrasonic Water Meter actively reports data according to the set period. The format of reported data frame can be set to three types: meter reading 1, meter reading 2, meter reading 3 . - Page 11 FC-702C Ultrasonic Water Meter User Manual BIT6,1: Water inlet flow sensor alarm,0: Normal BIT7,1: Backwater flow sensor alarm,0: Normal Check byte The terminator ‘Meter reading 2’ data frame example: FEFE 68 10 75700200357568 81 08 D121 00 2C 05010000 18 16...
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Page 12: Setting Command
FC-702C Ultrasonic Water Meter User Manual Current instantaneous flow (refer to CJ-T188-2004 standard 8.3) : (0.6573 73650000 m3/h) Unit (refer to CJ-T188-2004 standard 8.3.1): (XXXXXX.XXM3) Current forward cumulative flow (refer to CJ-T188-2004 standard 8.3) : 29040000 (representing 4.29 m3) Unit (refer to CJ-T188-2004 standard 8.3.1): (XXXXXX.XXM3) Current reverse cumulative flow (refer to CJ-T188-2004 standard 8.3) : (for... - Page 13 FC-702C Ultrasonic Water Meter User Manual :minute:second RTC real-time clock se tting, the format is xx.x x.xx_x_xx:xx:xx (year.m onth.day_week_hour:mi nute:second) Note that Saturday and Sunday, correspond to AT+T=xx.xx.xx x xx:x number 6 and 7. Set RTC Success Error x:xx For example, to set the...
- Page 14 FC-702C Ultrasonic Water Meter User Manual Set the frequency band. For example, set the AT+DR=band band to AU915. The +DR: XXXXXX command is: AT+DR=AU915. Set channel. The transmit channel of the module must be consistent with the receive channel of the...
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Page 15: Parameters Configuration
Before using the Ultrasonic Water Meter, we need to configure some parameters, such as initial index, RTC real-time clock, reporting period, reporting frame type and other information. The configuration mode supports wireless. For detailed operation steps, users can refer to ‘Friendcom FC-702C Ultrasonic Water Meter Configuration Guide’. 4.1.1 Wireless Configuration Mode Plug the wireless USB adapter FC-714-USB into your computer and install the correct driver to configure the product wirelessly. - Page 16 FC-702C Ultrasonic Water Meter User Manual Magnet activation position Figure 4- 1 Magnet activation position The time that magnet triggers the sensor to connect (the duration from connect to the break) and the corresponding functions are shown in the following table:...
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Page 17: Dimensions And Installation
FC-702C Ultrasonic Water Meter User Manual Dimensions and Installation Dimensions Nominal diameter DN (mm) Length L (mm) Width W (mm) size H (mm) Weight (kg) 0.94 1.01 1.28 Interface Thread G 3/4B G1 1/4B dimensions of specification flow pipe Thread length... -
Page 18: Horizontal Installation
FC-702C Ultrasonic Water Meter User Manual the same size as the caliber of the water meter, and can not be reduced; (5) The direction indicated by the arrow on the surface of the ultrasonic water meter is the direction of the water flow and shall not be reversed;... -
Page 19: Vertical Installation
FC-702C Ultrasonic Water Meter User Manual 5.2.2 Vertical Installation For vertical installation, as shown in the figure above, the water flow direction at the water meter is water at the lower end and water at the upper end. In this case, the air bubbles can be avoided to accumulate in the water meter measuring pipe when there is water flowing through. -
Page 20: Common Examples Of Incorrect Installations
FC-702C Ultrasonic Water Meter User Manual In the figure, the pipe in front of the water meter can be parallel to the body of the water meter (eliminating the right-angle bending structure compared to the recommended method), but the pipe at the back of the water meter must be arranged as shown in the figure to prevent bubbles from forming in the pipe. - Page 21 FC-702C Ultrasonic Water Meter User Manual Figure (C) 2) When installed in the "U" pipe, please install the meter in the lowest place, because the pipe in the height of the place may collect air, resulting in meter measurement is not allowed or not measured (as shown in Figure D).
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Page 22: Daily Maintenance
FC-702C Ultrasonic Water Meter User Manual Figure (E) 6) When the valve or other objects are installed in front of the table, the distance between the table and the object must be ≥5 times the diameter, otherwise it may cause inaccurate meter measurement.
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