• Potable Water Application Handheld Ultrasonic Flow Meter
  • Potable Water Application Handheld Ultrasonic Flow Meter
  • Potable Water Application Handheld Ultrasonic Flow Meter
  • Potable Water Application Handheld Ultrasonic Flow Meter
  • Potable Water Application Handheld Ultrasonic Flow Meter
  • Potable Water Application Handheld Ultrasonic Flow Meter

Potable Water Application Handheld Ultrasonic Flow Meter

Main Application: Water
Type: Ultrasonic Flow Meter
Measuring Media: Liquid
Certification: CE
Pipe Size: Dn15mm to Dn700mm Price
Recording Function: Last 64 Days/64 Months/5 Years
Customization:

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Miss Jennifer Shaw
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Basic Info.

Model NO.
HUF2000-H
Output Signal
4-20mA
Housing Material
ABS
Warranty
18 Months
Display
2X20 Characters LCD with Backlight
Separated Mounting
Clamp on/Insertion/Inline
Measure Accuracy
±1%
Power Supply
AC220V or DC24V
Flow Range
0-±30m/S
Trademark
Holykell
Origin
Hunan, China (Mainland)

Product Description

Potable Water Application Handheld Ultrasonic Flow Meter

 

Product profile

The ultrasonic flow meter has been upgraded based on the previous ultrasonic flowmeter which is still the main product line of the company. The new Version retains most of the excellent features and functions of the previous versions: the pulse measurement technology, the ultrasonic igniting and the small signal receiving circuits etc. The main improvements are made on the battery supply circuit and on the transmitting circuits. All other circuits are simply integrated into this new version without major modifications, due to the fact that we have already applied the most advanced measurement technologies and attained a more reliable model of ultrasonic flow meter.

Potable Water Application Handheld Ultrasonic Flow Meter
Potable Water Application Handheld Ultrasonic Flow Meter
Potable Water Application Handheld Ultrasonic Flow Meter

 

 

Features

* 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 

         

 

Principle of measurement

 

The Handheld Ultrasonic 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:

Potable Water Application Handheld Ultrasonic Flow Meter
 

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

 

Specifications for China Factory Handheld Ultrasonic Flow Meter with Recording Function 

 

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 on enquiry.

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

Handset Weight

500g with batteries


Application:

Potable Water Application Handheld Ultrasonic Flow Meter
 

 

 

 

Outstanding Features:  

----the signal receiving circuits feature self-adapting performance so as to ensure that the user can easily operate the instrument without any adjustment.       

----the built-in rechargeable Ni-H battery can work continuously for more than 12 hours without recharging.

 

 


 

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