Products Catalog

Specification

Overview ( PROVISIONAL specifications)
Principal of measurement Electromagnetic type with Faraday’ s law of electromagnetic induction
Model ( PROVISIONAL) VNS05 VNS10 VNS20
Accuracy assured flow-rate range * 2 0.05^ 1 L/ min 0.5^ 10 L/ min 3.0^ 60L/ min
Measurement starting flow-rate 0.025 L/ min 0.25 L/ min 1.5 L/ min
Piping connection Socket type
union joint ( 16A) Socket type
union joint ( 16A) Socket type
union joint ( 20A)
Accuracy * 3 Unit pulse output ± 2.0% RS ( 100~ 20% of the maximum flow-rate)
± 0.4% FS ( 20~ 5% of the maximum flow-rate)
Response time ( at 63% response) Standard: 2 seconds. Setting within the range of 0.1600 seconds is available.
Fluid temperature range 0~ 40° C, freezing must be avoided. ( VNS05 can resist 15 minutes per day of 95° C, whereas its accuracy is out of guarantee.
Measurable fluid Sodium hypochlorite ( Concentration of 1~ 12% )
Sodium hydroxide aqueous solution ( Concentration of 10~ 25% )
For other kind of liquid, by selecting with reference to the following major materials of the fluid-touching materials, please consult with us for suitability confirmation.
Working ambient temperature range -20~ 60° C
Ambient temperature range for storage -20~ 70° C
Fluid pressure range 0~ 1MPa
Signal cable Standard cable length 0.5m
4-wires ( AWG26)
Line 1: Power + line
Line 2: Power - line
Line 3: Output 1
Line 4: Output 2
Top of the each: Soldered stranded wire

Display 1 LED display at the flowsensor’ s body
Green: Flow-rate indication ( Indication with blinking speed of 3 steps)
Red: Alarm indication ( Indication of abnormality with numbers of blinking)

Place of installation Indoor installation
( In case of outdoor installation, please take necessary measure so that the flowsensor is not exposed to rain and sun beam directly.)
Enclosure IPX4
Corresponding standard CE Standard * 1
Fluid-touching materials Main body: PEEK resin
Electrodes: Pure titanium ( 2 kinds)

O-ring: For sodium hypochlorite, etc. – FKM ( Fluoro rubber)
For Sodium hydroxide aqueous solution, etc. --- EPDM ( Ethylene propylene rubber)
Installation position Free ( Vertical piping is recommended.)