一、Product Summary
Dear users, thank you for using our company's external ultrasonic flowmeter. Please read this instruction manual carefully before using it, so that you can easily use our products.
The water meter adopts the unique ultrasonic propagation phase and time difference measurement technology newly developed by the company, and has the remarkable characteristics of high precision, low power consumption, wide measuring range ratio, stability and reliability, etc.
In the structure, the IP68 scheme of components is adopted, i.e. each component reaches the IP68 protection level, and the instrument cavity can ensure long-term operation even if water enters.
二、Working Principle
When ultrasonic waves propagate in flowing fluid, they carry the information of fluid flow rate, and the flow rate of fluid can be detected by the received ultrasonic waves, which can be converted into flow rate. Ultrasonic pulses pass through the pipeline from one sensor to another to achieve the purpose of measurement.
三、Function List
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Serial Number |
Functions |
Comments |
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1 |
Metering function |
Ultrasonic acquisition |
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2 |
Water metering data history storage local |
1. For the latest 90 days, the measurement data is stored every hour |
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2. The latest 180 days, the measurement data is stored every day |
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3. Monthly storage of measurement data in the latest year |
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3 |
Power supply |
1. External power supply |
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5 |
LED indication |
Communication Event |
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6 |
Manual triggering (triggering varies according to different models) |
Button triggers an escalation event Trigger 2 seconds to report data Trigger more than 9 seconds to restart the device |
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7 |
Wireless technology |
4G |
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8 |
External Interface |
RS485/Mbus |
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9 |
Periodic reporting |
1 The default period is 24 hours |
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Latest cumulative measurement data |
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Downlink Signal Strength Indication |
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10 |
Timed reporting |
1 Fixed time (for example, 23:00, also configurable) triggers metering data reports every day, and the message payload is the same as the periodic report |
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Latest cumulative measurement data |
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Water meter status: valve status/power supply |
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Uplink Signal Strength Indicator RSSI/SNR |
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14 |
Antenna (GPRS) |
Built-in antenna (spring/soft antenna) External antenna (chuck antenna) |
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Communication module |
Communication mode |
Supported Band |
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RS485 communication |
See board for details of A and B |
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EC25 (4G) |
Support MQTT communication |
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BC66 |
Support MQTT communication |
四、Performance characteristics
Small size, convenient carrying, full function and accurate measurement. It can be used for production detection, flow calibration, temporary detection, flow inspection, water balance debugging and energy-saving detection, and is a necessary tool and instrument for instant flow detection.
五、Technical Parameters
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Accuracy |
± 1% |
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Flow rate range |
0 ~ ± 10 m/s, forward and reverse flow |
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Pipe diameter |
DN15 ~ DN6000 |
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Fluid temperature |
-30 ℃ ~ 160 ℃ |
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Type of fluid |
Water, seawater, sewage, acid and alkali liquor, alcohol, beer, various oils and other single uniform liquids that can conduct ultrasonic waves |
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Pipe material |
Steel, stainless steel, cast iron, copper, PVC, aluminum, glass fiber reinforced plastic and other dense pipes are allowed to be lined |
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Signal Output |
1 4-20mA Current Output, 0-1K Impedance, 0.1% Accuracy 1 channel OCT pulse output pulse width 6-1000ms 1 Relay Output |
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Signal Input |
1 4-20mA current input, which can be used as a data collector connected with a three-wire PT100 platinum resistor to realize heat measurement |
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Communication Interface |
Isolated RS485 serial interface supports MODBUS protocol |
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Data storage |
SD card regularly stores set parameters and measurement results (optional) |
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Power supply mode |
DC8-36V or AC85-264V |
六、Product structure and size
| Accuracy | ± 1% |
| Flow rate range | 0 ~ ± 10 m/s, forward and reverse flow |
| Pipe diameter | DN15 ~ DN6000 |
| Fluid temperature | -30 ℃ ~ 160 ℃ |
| Communication Interface | Isolated RS485 serial interface supports MODBUS protocol |
