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Compact Electromagnetic Flow sensor
1.
Specifications
Basic specifications
Model
Nominal diameter
Accuracy guaranteed flow-rate range
[L/min]
Flow rate at measurement start
[L/min]
(low flow cutoff)
Measurable fluid
Fluid conductivity range
Fluid temperature range
Working ambient
temperature/humidity range
Storage ambient temperature range
Maximum working pressure
Pressure loss (maximum accuracy
guaranteed flow-rate)
Standard installation position
Flow direction
Pipe connection
Power
Current consumption
Response performance
Basic specifications
Cable
Terminal processing
Protection structure
Mass
Main material
Note 1
○
(The parts
○
with ○ are
○
wetted.)
○
Others
Product Specifications
VN05M
0.01～0.20
0.005
The LED display to be parallel or vertical to the ground (upward flow)
*It is recommended to supply power from an isolated power source and connect one power
Settable in increments of 0.1 sec. between 0.1 sec. and 600 sec. before
Cable length: 0.5m, 4 cores, AWG28, outer diameter φ2.8, shielded
Wiring
Red: Power +, Blue: GND, White: Output 1, Yellow: Output 2
Top/bottom
cover
Body casing
m-PPO
Electrode
Grounding ring
O-ring
CE marking, UKCA marking, RoHS directive compliant, positive list-
Model
VN05S
5 mm
0.05～1.0
0.025
Water (tap water)
50μS/cm or more
0ºC to +60ºC (no freezing)
-20ºC to +60ºC, 35 to 85%RH (no condensation)
-20ºC to +70ºC
1MPa (fluid temperature of 25ºC)
0.02MPa or less
(no air entrapment)
Arrow direction indicated on the product
R1/4
21.6 to 26.4VDC (24VDC±10%)
source per VN.
100mA or less (excluding the current from PNP)
63%-response damping time
(Standard): Nominal diameter 5mm, 10mm → 0.5 sec.,
Nominal diameter 20mm → 2.0 sec.
shipment
Remove the coating and twist the core wires.
IP64 or equivalent (indoor specification)
Approx. 190g
SUS316L
SUS316
compliant Note 2
FZ01-390E1
VN□□S・M
VN10S
10 mm
0.5～10
0.25
0.05MPa or less
R1/2
Approx. 290g
PPS
PPS
FKM
１／１２
VN20S
20 mm
3.0～100
1.5
R1
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Summary of Contents for Aichi Tokei Denki VN S Series
- Page 1 Product Specifications FZ01-390E1 １／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Specifications Basic specifications Model VN05M VN05S VN10S VN20S Nominal diameter 5 mm 10 mm 20 mm Accuracy guaranteed flow-rate range 0.01～0.20 0.05～1.0 0.5～10 3.0～100 [L/min] Flow rate at measurement start [L/min] 0.005 0.025...
- Page 2 Product Specifications FZ01-390E1 ２／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Note 1: Description of material symbols Polyphenylene sulfide m-PPO Polyphenylene oxide Fluoro rubber SUS316L Stainless steel SUS316 Stainless steel Note 2: The materials are compliant with the positive list under the Food Sanitation Act enforced in June 2020. Usable food Max.
-
Page 3: Temperature Characteristics
Product Specifications FZ01-390E1 ３／１２ VN□□S・M Compact Electromagnetic Flow sensor Model ◇ Standard accuracy Note3 ･VN05M、VN05S、VN10S Flow-rate range Output pulse 5% to 20% of upper-limit accuracy 20% to 100% of upper-limit accuracy guaranteed flow-rate guaranteed flow-rate ±0.4%F.S. ±2.0%RD Unit pulse ±0.5%F.S. ±2.5%RD Frequency pulse ･VN20S... -
Page 4: Conductivity Characteristics
Product Specifications FZ01-390E1 ４／１２ VN□□S・M Compact Electromagnetic Flow sensor Model ◇ Conductivity characteristics Changes in meter errors at the unit pulse outputs at fluid conductivities of 50 to 300μS/cm Upper-limit accuracy guaranteed Change in meter error Model flow-rate (200μS/cm) ±0.4%F.S. 5% to 20% VN05M ±2.0%RD... - Page 5 Product Specifications FZ01-390E1 ５／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Output Specifications Model VN05M、VN05S、VN10S、VN20S Output type NPN output PNP output 30VDC 26.4VDC (Power is supplied from the main body.) Maximum load 20mA 20mA Residual voltage when 1V or less 2.4V or less Number of outputs Output form Standard: Normally open, Option: Normally closed...
- Page 6 Product Specifications FZ01-390E1 ６／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Output Specifications (continued) Switch output Select either level judgment or window judgment. Output 1 and 2 can be individually selected. Either normally open (standard) or normally closed can be selected. Level 1 and 2 judgment values and hysteresis width (common for level 1 and 2) can be set in increments of 1% between 0% and 100% of upper-limit accuracy guaranteed flow-rate.
- Page 7 Product Specifications FZ01-390E1 ７／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Output Specifications (continued) Contact output alarms - Types of contact output alarms ※1: (1) Internal error (2) No-water detection (3) Excessive fluid noise detection (4) Reverse flow detection (5) Excessive flow rate detection (6) Low power voltage detection - Normal state is when no error is detected, and abnormal state is when any error is detected.
- Page 8 Product Specifications FZ01-390E1 ８／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Selection Sheet * Check of each item to select or enter a value as necessary. Model □ VN05M □ VN05S □ VN10S □ VN20S Output type □ NPN output □...
- Page 9 Product Specifications FZ01-390E1 ９／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Output Normal Open (N.O.: Standard) Normal Close (N.C.) format Alarm Same as Output 1 (Sandard) Kind of ･VN05：□0.05mL/P(Duty50±30%) □0.001L/P(Standard) Output output □0.01L/P □0.1L/P Unit pulse Choose one of ･VN10：□0.01L/P(Standard) □0.1L/P □1L/P...
- Page 10 Product Specifications FZ01-390E1 １０／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Wiring Method Wire diagram (NPN output) ◇ Flow sensor Power + terminal - terminal Red (Power +) White (Output 1) Receiver Yellow (Output 2) Blue (Power -) Open-collector input (NPN input) Wire diagram (PNP output) ◇...
- Page 11 Product Specifications FZ01-390E1 １１／１２ VN□□S・M Compact Electromagnetic Flow sensor Model LED Display Flow Rate (Green LED) The display pattern changes according to flow rate as shown in the table and figures below. Flow-rate range Display pattern Below the low flow cutoff flow-rate Solid on Between the low flow cutoff flow-rate and 1/3 of the upper-limit 2-second flashing cycle...
- Page 12 Product Specifications FZ01-390E1 １２／１２ VN□□S・M Compact Electromagnetic Flow sensor Model Precautions for handling Before handling the product, be sure to read the handling manual carefully. And, use the product correctly. 5-1. Working environment, fluid to be measured (1) Ensure that the wetted parts' materials have corrosion resistance against fluid to be measured. (2) The product cannot be used for non-conducting fluid such as purified water, oil, etc.
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