The Yoshitake UFM-100 Clamp-on Ultrasonic Flowmeter is easy to install by simply clamping onto piping. Compatible with all various liquid and pipe materials, it is ideal for usage management and supports accumulation history by day, month, and year.

Applications

• Factory production facilities
• Water supply system for boiler
• Coolant in the air conditioning field
• Applications in the Chemical Industry
• Brewing process, water for pharmaceutical cleaning
• Steel plants, equipment lines on board ships
• Regular maintenance of equipment

Flow Measuring Principle

Delta time of Flight measuring

The flow rate can be measured from the difference in transmission time of ultrasonic waves transmitted in the forward and reverse directions. Forward ultrasonic waves transmit in the fluid flow, so the faster the flow is, the shorter the transmission time. Conversely, reverse ultrasonic waves transmit against the flow, so the faster the flow is, the longer the transmission time is. The difference in transmission time between the forward and reverse directions correlates to the flow rate, and thus the flow rate can be measured.

Specifications

Parameter	Description
Supported pipe materials	Metal pipe, Plastic pipe, Tube hose
Supported fluids	All fluids (Water, chemicals, etc.) Oil (15~25A only)
Supported nominal size of pipe	10A ~ 80A (φ 16.5~φ 92)
Supported fluid temperature	0~50°C (No freezing on pipe surface)
Measurable flow rate range	0.5~5.0m/s (For oil 1.0~4.0m/s)
Repeatability	F.S. ± 3.0%
Display	Instantaneous flow, Integrated flow, Flow rate
Units	m³/h, LPM (Instantaneous flow) m³, L (Integrated flow) m/s (Flow rate)
Display resolution of instantaneous flow	0.001/0.01/0.1/1
Display resolution of integrated flow	0.0001/0.001/0.01/0.1/1(Auto)
Analogue output	4-20mA, load resistance 600 Ω or less
Applicable ambient temperature	0~50°C (No condensation)
Protective structure	IP54
Material	Aluminum alloy (Sensor body, mounting bracket)
Power supply	DC12~30V
Power I/O connector	M12 5-pin connector with 2m cable standard
Required straight pipe length	For general piping: Upstream side 10D, Downstream side 5D (D indicates the nominal size of pipe)

Notes

• Fluids must contain no air bubbles or foreign objects.
• LPM means L/min.

Safety

To ensure safe use of the product, please be sure to read the enclosed instruction manual before use.

Flow Rate and Dimensions

INFO

Maximum flow rate indicates the value with steel pipe.

Nominal size	A (mm)	B (mm)	C (mm)
10A·15A (φ 16.5~φ 23mm)	40	106	75
20A (φ 25~φ 28mm)	40	106	74
25A (φ 32~φ 35mm)	40	106	81
32A (φ 38~φ 45mm)	40	106	90
40A (φ 48~φ 54mm)	40	106	100
50A (φ 58~φ 64mm)	45	130	115
65A (φ 72~φ 78mm)	45	136	129
80A (φ 80~φ 92mm)	45	150	143

No.	Name	Material	Req. No.	Remark
1	Sensor body	Aluminum alloy	1
2	Upper bracket	Aluminum alloy	1
3	Under bracket	Aluminum alloy	1
4	Cable		1	Standard 2m

Required Straight Pipe Length

To ensure accurate measurement, please provide appropriate straight pipe sections in the upstream and downstream of the product according to the table below. D indicates the nominal size of pipe.

Type of the previous joint	Upstream	Downstream
90° bend (Elbow) 1 pcs / T-joint (Cheese) 1 pcs	10D	5D
More than two 90° bends (Elbow) on the same plane	13D	5D
More than two 90° bends (Elbow) not on the same plane	24D	5D
Contraction pipe (Reducer: Large diameter → Small diameter)	5D	5D
Expansion pipe (Reducer: Small diameter → Large diameter)	11D	5D
Globe valve fully open	13D	5D
Gate valve fully open	7D	5D