Portable Handheld Ultrasonic Flow Meter for Multi-Liquid Flow Applications

Product Description

Product Description

1.0% High Accuracy Widely Measuring Range Digital Portable Ro Water Flow Meter

A.[Features of ultrasonic flowmeter ]

 

All kinds of liquid

The insertion type ultrasonic flowmeter could measure all kinds of liquid beacuse it don't contact the medium;

 

Threee kinds of type for you reference

There are three types insertion type ultrasonic flowmeter ,based on your working condition;

Various communication and output 

4~20mA Output ,RS232 and RS485 optional and satisfy your working conditions;

Easy installation and operation

various installation ways and easy to operaton

B.[Parameters]

Production Name	The insertion type ultrasonic flowmeter
Parameter	Handheld	Portable	Wall-mounted
Accuracy	1.0% Flow speed >0.2m/s
Display	4×8 English display	2×10 backlight display	2×10 backlight display
Medium	All kinds of liquid
Function	Data logger	Printer	store data while power off
Parts	tape,coupling agent,cable	box and coupling agent	Fixed parts
Linearity	0.5%
Repeatability	0.2%
Sensor	15~6000mm standard high temperature sensor
Output	----	4~20mA	4~20mA
Diameter	Min:15mm   Max:6000mm
Communication	RS232	RS485 MODBUS	RS485
Power supply	3 Ni-H battery	85~264 VAC	85~264 VAC
Installaton	External stickers ;External clip-type;Plug-in

Parameter of Flow Sensor
Type	Fromat	Model	Diameter	Temperature	Size
Standard   Sandwish	Normal Small	S-2	DN15~100	-30~90ºC	45*25*32
	Normal Medium	M-1	DN50~700	-30~90ºC	64*39*44
	Normal large	L-1	DN300~6000	-30~90ºC	97*54*53
High temperature Sandwish	High-Tem small	S-2-HT	DN15~100	-30~160ºC	45*25*32
	High-Tem medium	M-1-HT	DN50~700	-30~160ºC	64*39*44
	High-Tem large	L-1-HT	DN300~6000	-30~160ºC	97*54*53
Plug-in	Standard	C-1	DN80~6000	-30~160ºC	190*80*55
	Lengthen	C-2	DN80~6000	-30~160ºC	335*80*55

Company Profile

FAQ

Handheld Ultrasonic Flow Meter FAQ

(Based on technical manuals and field maintenance cases)

1. Signal Reception Failure

Q: No signal/weak signal?
Causes: Incorrect pipe parameters, insufficient couplant, misaligned probes, or non-full pipe.
Solutions:
Verify pipe OD/wall thickness (input measured values)
Reapply couplant generously, eliminate air bubbles before securing probes
Ensure fluid fills the pipe; install probes at screen-indicated distances (Red upstream, Blue downstream)

Q: Weak signal in aged pipes?
Causes: Scaling or internal deformations blocking ultrasound.
Solutions:
Use Z-mount method (angle probes to avoid scaled areas)
Relocate probes to find optimal signal points or lightly tap pipe (use cautiously)

2. Display Abnormalities
Q: Blank screen/no backlight?
Causes: Power disconnection or protective shutdown.
Solutions: Check 220V supply, restart device.

Q: Zero flow reading (actual flow present)?
Causes: Accidental activation of static zero function (M43 menu).
Solutions: Enter menu > clear static zero point > select "YES" to reset.

Q: Significant flow value deviation?
Causes: Insufficient straight pipe (near valves/pumps), sensor misalignment, or parameter errors.
Solutions:
Relocate to >10 pipe diameters upstream of disturbances
Recalibrate sensor spacing; confirm pipe material sound speed settings

3. Output & System Errors
Q: No current loop output?
Causes: Incorrect hardware jumper setting (near terminal 22).
Solutions: Set jumper to 1-2 position (direct output mode).

Q: Data storage/time errors?
Causes: RAM or RTC module malfunction.
Solutions: Restart device; contact manufacturer if persistent.

4. Environmental Limitations
Q: Failure in high-purity/hot fluids?
Causes: Decoupling >160°C (probes) or lack of reflectors in pure liquids (Doppler mode).
Solutions:
Use high-temp probes with thermal insulation
Switch to transit-time method or inject particles for Doppler

Q: Erratic readings?
Causes: Pipe vibration or fluid bubbles/impurities.
Solutions:
Reinforce pipe supports; avoid vibration sources
Install vent valves at high points; mount vertically (bottom-up flow)

5. Maintenance Issues
Q: Rapid battery drain?
Causes: Battery aging, interrupted charging, or firmware incompatibility.
Solutions: Replace OEM battery; perform full discharge/charge cycle; update firmware.
Critical Operation Notes

Probe Installation:
Polish pipe to bare metal before mounting - rust/paint attenuates signals.
Periodically calibrate current loop (M49 verification) and sensor spacing.