| After-sales Service: | 3 Years |
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| Warranty: | 3 Years |
| Accuracy: | >±1% |
| Main Application: | Water |
| Size: | DN15-100.DN50-700,DN300-6000 |
| Sensor: | Clamp-on/External |
| Samples: |
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| Customization: |
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* Large-screen LCD * Non-contacting measuring
* Built-in data-logger * Built-in rechargeable battery
* High accuracy measuring * Wide measuring range
* Small and light * RS-232 serial interface
The QYB-2000H ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non-fouling operation and easy installation.
The QYB-2000H transit time flow meter utilizes two transducers that function as both ultrasonic transmitters and receivers. The transducers are clamped on the outside of a closed pipe at a specific distance from each other. The transducers can be mounted in V-method where the sound transverses the pipe twice, or W-method where the sound transverses the pipe four times, or in Z-method where the transducers are mounted on opposite sides of the pipe and the sound crosses the pipe once. This selection of the mounting method depends on pipe and liquid characteristics. The flow meter operates by alternately transmitting and receiving a frequency modulated burst of sound energy between the two transducers and measuring the transit time that it takes for sound to travel between the two transducers. The difference in the transit time measured is directly and exactly related to the velocity of the liquid in the pipe, show as follows: Where
θ is the include angle to the flow direction
M is the travel times of the ultrasonic beam
D is the pipe diameter
Tup is the time for the beam from upstream transducer to the downstream one
Tdown is the time for the beam from downstream transducer to the upstream one
ΔT=Tup -Tdown
| Name | QTY (pcs) |
| Main Unit | 1 |
| Medium transducer | 2 |
| Ultrasonic signal cable | 2 |
| Data line | 1 |
| AC adapter | 1 |
| Coupling agent | 1 |
| Belt stretcher | 2 |
| Tape | 1 |
| User manual | 1 |
| Carrying case | 1 |
The HRYQ-2000H flow meter can be virtually applied to a wide range of measurements. A variety of liquid applications can be accommodated: ultra-pure liquids, potable water, chemicals, raw sewage, reclaimed water, cooling water, river water, plant effluent, etc. Because the instrument and transducers are non-contacting and have no moving parts, the flow meter can not be affected by system pressure, fouling or wear. Standard transducers are rated to 110 ºC. Higher temperatures can be accommodated. For further information, please consult the manufacturer for assistance.
All user-inputted configuration values are retained in the built-in non-volatile flash memory that can store them for over 100 years, even if power is lost or turned off. Password protection is provided to avoid inadvertent configuration changes or totalizer resets.
A time-keeper is integrated in the flow meter for the index of date totalizing and works as the time base of flow accumulation. It keeps operating as long as the battery's terminal voltage is over 1.5V. In case of battery failure, the time-keeper will not keep running and it will lose proper time values. The user must re-enter proper time values in case the battery becomes totally exhausted. An improper time value affects no other functions but the date totalizer.
Each set of the QYB-2000H has a unique product identification or ESN written into the software that can only be modified with a special tool by the manufacturer. In case of any hardware failure, please provide this number which is located on menu window number M61 when contacting the manufacture.
| Linearity | 0.5% |
| Repeatability | 0.2% |
| Accuracy | ±1% of reading at rates>0.2 mps |
| Response Time | 0-999 seconds, user-configurable |
| Velocity | ±32 m/s |
| Pipe Size | 15mm-6000mm |
| Totalizer | 7-digit totals for net, positive and negative flow respectively |
| Liquid Types | Virtually all liquids |
| Security | Setup values Modification Lockout. Access code needs unlocking |
| Display | 4x8 Chinese characters or 4x16 English letters |
| Communication Interface | RS-232, baud-rate: from 75 to 57600. Protocol made by the manufacturer and compatible with that of the FUJI ultrasonic flow meter. User protocols can be made by user requirements |
| Transducer Cord Length | Standard 5m x 2, optional 10m x 2 |
| Power Supply | 3 AAA built-in Ni-H batteries. When fully recharged it will last over 12 hours of operation. 100V-240VAC for the charger |
| Data Logger | Built-in data logger can store over 2000 lines of data |
| Manual Totalizer | 7-digit press-key-to-go totalizer for calibration |
| Housing Material | ABS |
| Case Size | 210x90x30mm |
| Main unit Weight | 500g with batteries |
FAQ
1. How long will you reply to me?
Normally in 1 hours, no more than 12 hours.
2. How can I get the quotation?
Please provide specification and application including sensing element, pressure range, thread connection, pressure type, medium, electronic connection, shell material etc. More details, more accurate quotation and earlier response.
3. Can I get sample?
Contact with our staff online directly and they would check stock for you.
4. Can I visit your factory?
You are warmly welcomed, our factory is located at Baoji city, Shaanxi province, China.
5. Can we use our logo on the products?
Yes, we provide OEM/ODM service.
6. How long is your warranty period?
Warranty period from the date of acceptance of 12 months.
7. What is your terms of payment?
We could accept T/T, L/C, Western union, PayPal, credit Assurance
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