S418-V

S418-V Compact Flow Meter for Vacuum Applications (Inline-Sensor)

Compact vacuum flow meter for precise monitoring of performance vacuum pumps.

Compact flow meter for vacuum flow measurements

Pressure sensor for actual vacuum flow measurements

Accurate results thanks to the flow conditioner

Free smartphone app for live values and configuration

Easy and inexpensive process monitoring

Convenient installation and great flexibility

Isolated 4... 20 mA & Pulse; Modbus/ RTU; M-Bus

G inner thread connection: DN8, DN15, DN20, DN25 or DN32

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Flow Range Calculator

The S418-V Compact Flow Meter offers a simple but effective monitoring solution for vacuum applications at the point-of use. The Inline Type Flow Meter is designed to monitor the performance of vacuum pumps. In doing so, the actual flow and absolute pressure on the low-pressure side of vacuum pumps is measured.

The use of thermal mass flow technology makes the flow meter also resistant with regards to temperature and pressure changes.

Vacuum System Optimization and Reliability

By monitoring the flow, consumption, pressure and temperature at the point of use, the flow meter helps to optimize vacuum system efficiency and discover optimization potentials.

Equipped with an absolute pressure sensor, it does not only show the vacuum pressure, but also shows the actual vacuum flow. These parameters are crucial values in vacuum applications and help operators to ensure their process reliability.

Flexible Installation

The S418-V offers great flexibility at the point of use and can be installed anywhere. With the integrated display the vacuum sensor is available for different pipe sizes DN8, DN15, DN20, DN25 and DN32 (G female thread).

Smartphone App for Configuration and Real-time Data

The Flow Meter is easily configurable through the SUTO S4C-FS App. Real-time data can also be read on the smartphone through the app. This helps to get a fast overview over the actual data and situation.

The more accurate you can monitor gas flow, the more likely you will discover weak points in the process flow, thus ensuring continuity and profitability. Please contact us here to find the best possible configuration for your application.

S418-V is used for performance monitoring of vacuum pumps. Equipped with an absolute pressure sensor, it does not only show the vacuum pressure, but also shows the actual vacuum flow. These parameters are most the critical values in vacuum applications and help operators to ensure their process reliability.

MEASUREMENT
Flow
Accuracy	1.5 % of reading ± 0.3 % FS
Selectable units	m³/h, l/min, cfm, kg/h
Measuring range	see table on the previous page
Repeatability	0.5 % of reading
Sensor	Thermal mass flow sensor
Sampling rate	10 samples / sec
Turndown ratio	1:100
Response time (t90)	0.5 sec
Consumption
Selectable units	m³, ft³, l, kg
Pressure
Accuracy	0.5 % FS
Selectable units	bar, psi
Measuring range	0.01 ... 1.6 bar(a)
Sensor	Piezo resistive sensor
Reference conditions
Selectable conditions	20 °C 1000 mbar (ISO1217)

SIGNAL INTERFACE & SUPPLY
Analog output
Signal	4 ... 20 mA (4-wire), isolated
Scaling	0 ... max flow, freely adjustable
Load	max. 250 Ohm
Update rate	3/sec
Pulse output
Signal	Switch output, normally open, max. 30 VDC, 200 mA
Scaling	1 pulse per consumption unit
Fieldbus
Protocol	Modbus/RTU
Supply
Voltage supply	15 ... 30 VDC
Current consumption	120 mA @ 24 VDC
Data interface
Connection	USB micro

GENERAL DATA
Configuration
Wireless	S4C-FS App for mobile phones
PC Software	S4A PC software for data analyzes
Display
Integrated	4 digit LED
Data Logger
Storage	8 Mio. values
Material
Process connection	Aluminum alloy
Housing	PC + ABS
Sensor	Ceramic, glass coated
Metal parts	Aluminum alloy
Miscellaneous
Electrical connection	2 x M8 (4 pole)
Protection class	IP54
Approvals	CE, RoHS, FCC
Process connection	G-thread
Weight	0.45 ... 1.1 kg (depends on model)
Operating conditions
Medium	Air, N2, O2, CO2 and other gases
Medium quality	ISO 8573: 4.4.3 or better
Medium temperature	0 ... 50 °C
Medium humidity	< 90 % rH, no condensation
Operating pressure	Max. 10 bar(g)
Ambient temperature	0 ... 50 °C
Ambient humidity	< 95 % rH
Storage temperature	-30 ... 70 °C
Transport temperature	-30 ... 70 °C
Pipe sizes	DN8, DN15, DN20, DN25

MEASURING RANGE
Process connection	DN8	DN15	DN20	DN25	Absolute Pressure (mbar)
Vacuum flow in l/min	56	222	444	778	900
	63	250	500	875	800
	71	286	571	1000	700
	83	333	667	1167	600
	100	400	800	1400	500
	125	500	1000	1750	400
	167	557	1333	2333	300
	250	1000	2000	3500	200
	500	2000	4000	7000	100
Stated measuring ranges for S418-V under following conditions: Standard flow in air in l/min Reference pressure: 1000 mbar Reference Temperature: +20 °C

VACUUM SCALES
bar(a)	inch Hg(g)	kPa(g)	bar(g)	mbar(a)
1.00	0.00	0	0.00	1000
0.90	-2.95	-10	-0.10	900
0.80	-5.91	-20	-0.20	800
0.70	-8.86	-30	-0.30	700
0.60	-11.81	-40	-0.40	600
0.50	-14.77	-50	-0.50	500
0.40	-17.72	-60	-0.60	400
0.30	-20.67	-70	-0.70	300
0.20	-23.63	-80	-0.80	200
0.10	-26.58	-90	-0.90	100
0.01	-29.24	-99	-0.99	10