VSE EF Ecoflow Aluminium Gear Flow Meter

 

As a cost-effective and lightweight alternative to the VS volume sensor, we have launched the VSE EF eco-flow series onto the market. The VSE EF eco-flow aluminum flow meter uses the same gearwheel pairs as in the VS. The rotation of the flow meter gear wheels is sensed by a non-contact magnetoresistive pickup, amplified and emitted as pulses. The passing of each gear tooth produces a pulse corresponding to a precise positively displaced measured volume. The pulse output can be produced as PNP or NPN signals. The frequency is proportional to the momentary flow.

Performance data

• Flow range 0.05 to 150 l/min
• Pressure range up to 200 bar
• Temperature range 0 to 80°C
• Frequency range up to 1666.7 Hz
• Viscosity range 1 to 10,000 CST

Applications

• Oils
• Lubrication systems
• Printing inks
• Hotmelt

Specification

	EF 0.04	EF 0.1	EF 0.4	EF 2	EF 4
Flow Range (l/min)	0.05 … 4	0.1 … 10	0.2 … 30	0.5 … 70	3.0 … 150
Flow Volume (cm³/pulse)	0.04	0.1	0.4	2.0	4.0
Frequency (Hz)	20.8 … 1,666.7	16.7 … 1,666.7	8.3 … 1,250.0	4.2 … 583.3	12.5 .. 625.0
K-Factor (pulse/l)	appr. 25,000	appr. 10,000	appr. 2,500	appr. 500	appr. 250
Accuracy at 21 mm²/s	2%	2%	2%	2%	3%
Viscosity Range mm²/s	2 … 2,000	2 … 2,000	2 … 5,000	2 … 7,000	2 … 10,000
Max. Operating Pressure	200 bar (2900 psi)
Medium Temperature	0 ºC … +80 ºC (32 ºF … 176 ºF)
Mounting Position	Unrestricted
Filtering	20 μm	20 μm	50 μm	50 μm	100 μm
Side Pipe Connection	G 1/4″	G 3/8″	G 1/2″	G 3/4″	G 1″
Weight	0.62 kg	0.70 kg	1.5 kg	1.7 kg	5.24 kg