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VALCOM CO.,LTD.

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Low and Absolute Pressure Intelligent Digital Display
VSW2 series (For Low-Absolute pressure)
5kPa–700kPa
50kPa abs–700kPa abs


* Actual products may differ from photo depending on specifications.

  • "Max./min memory" function included, which allows abnormal pressures detected so far to be checked during operation.
  • Color LCD adopted with display colors "red and green" intuitively understandable for users.
  • Compact design (length: 111 (107) mm, width: 37 mm) suitable as a replacement for mechanical switch.
  • Setting output can be selected between higher/lower limits and NPN/PNP (Factory-set at NPN/PNP.)
Measured medium S sensor: Inert gases that will not corrode SUS304, SUS316L, Silicon glass, NBR and Silicon gel.
H sensor, A sensor: Water, oil, gases or other media that will not corrode Hastelloy C22 and SUS316L.
P sensor: Water, oil, gases or other media that will not corrode SUS316L.
Pressure type Positive, absolute, and compound pressures can be measured.
Pressure range S sensor: 5kPa
H sensor: 50kPa and 50kPa abs
A sensor: 100–700kPa and 100–700kPa abs
P sensor: 100–700kPa

Specifications

Display −1999–2000(*1) 7 segments 4 digit LCD (Character height:9mm)
Display Color Red or Green (Arbitrary setting)
Rated Capacity 5, 50, 100, 200, 350, 500, 700kPa
50, 100, 200, 500, 700kPa abs
Calibration Range 0– (5, 50, 100, 200, 350, 500, 700) kPa
0– (50, 100, 200, 500, 700) kPa abs
Accuracy ±0.5%F.S.±1digit
(Non Linearity, hysteresis and repeatability included.)
Output Channels 2 points of Open collector output
1 points of Open collector output + 4–20mA output
Maximum rating for setting output: DC30V 20mA Residual voltage: 0.85V (NPN output)
+Analog output Load resistance: 400Ω or less
Use Temperature Range Temperature: 0–50°C (Temperature of medium to be measured: 0–70°C)
Safe Overload Rating S sensor, H sensor: 300%R.C.
A sensor: 300%R.C. (700kPa, 700kPa abs: 200%R.C.)
P sensor: 200%R.C.
IP Rating Equivalent to IP65(Dedicated cable connection state)
Temperature Effect ±2.5%F.S. (25°C standard, within the service temperature range)
Vibration-Proof 98m/s² (10G) [Compliant with IEC68-2-6]
Connection Screw R1/4 [Male screw]
Applicable standards CE marking (EMC directive, Europe RoHS directive conformity product)
Connector Model number XS2M-D423 made in Omron
Measured medium S sensor:
Inert gases that will not corrode SUS304, SUS316L, Silicon glass, NBR and Silicon gel.
H sensor, A sensor:
Water, oil, gases or other media that will not corrode Hastelloy C22 and SUS316L.
P sensor:
Water, oil, gases or other media that will not corrode SUS316L.
Power Source Voltage DC18–30V
Consumption current Approx. 30mA(Approx. 50mA for models with 4–20 mA output)
Functions Peak hold/Damping/FIX zero/Maximum and Minimum memory
Window Comparator / Zero shift / Key protection
Material Connection screw S sensor: SUS304+SUS316L
H sensor, A sensor, P sensor: SUS316L
Diaphragm S sensor: Semiconductor
H sensor, A sensor: Hastelloy C-22
P sensor: SUS316L
Weight S sensor, H sensor, A sensor: Main body Approx. 200g
P sensor: Main body Approx. 150g
Accessories Operating manual 1 copy (Specify English or Japanese.)
Test report 1 copy
Options(*2) Wall hangings fixation bracket [VSW2-BR]
  • (*1)Depends on the factory setting. Values beyond the calibration range cannot be displayed.
  • (*2)Contact our sales office for details.

Model Selection

Example

Selection Check Model Specifications
1.Model ○ VSW2 Small intelligent digital pressure meter for low absolute pressure
Compliant with Europe RoHS, CE Marking, EMC Directive
2.Output   02 2-point Open collector output (Factory setting: NPN)
Maximum rating DC30V 20mA Residual voltage 0.85V (NPN output)
  31 1-point Open collector output (Factory setting: NPN)
+4–20mA output (Scaling setting possible as desired.)
3.Power ○ 4 DC18–30V (Consumption current: Approx. 30mA *Analog output: Approx. 50mA)
4.Calibration   Positive perssure (Low pressure),
Absolute pressure		 5.00kPa S sensor, Rated capacity 005KPG designation
  35.0kPa H sensor, Rated capacity 050KPG designation
  50.0kPa
  100kPa A sensor, Rated capacity 100KPG designation
  100.0kPa
  200kPa A sensor, Rated capacity 200KPG designation
  200.0kPa
  350kPa A sensor, Rated capacity 500KPG designation
  500kPa A sensor, Rated capacity 500KPG designation
  700kPa A sensor, Rated capacity 700KPG designation
  35.0kPa abs H sensor, Rated capacity 050KPA designation
  50.0kPa abs
  100kPa abs A sensor, Rated capacity 100KPA designation
  100.0kPa abs
  200kPa abs A sensor, Rated capacity 200KPA designation
  200.0kPa abs
  500kPa abs A sensor, Rated capacity 500KPA designation
  700kPa abs A sensor, Rated capacity 700KPA designation
  Negative pressure,
Compound pressure
(*1)		 (−5.00kPa) S sensor, Rated capacity 005KPG designation
  P(±5.00kPa)
  N(±5.00kPa)
  (−50.0kPa) H sensor, Rated capacity 050KPG designation
  P(±50.0kPa)
  N(±50.0kPa)
  (−100kPa) P sensor, Rated capacity 100KPG designation
  (−100.0kPa)
  P(±100kPa)
  N(±100kPa)
  P(±100.0kPa)
  N(±100.0kPa)
  (−100–200kPa)*2 P sensor, Rated capacity 200KPG designation
  (−100.0–200.0kPa)*2
  (−100–350kPa)*2 P sensor, Rated capacity 700KPG designation
  (−100–500kPa)*2 P sensor, Rated capacity 700KPG designation
  (−100–700kPa)*2 P sensor, Rated capacity 700KPG designation
5.Cable Connection   WN Cable not included. (If prepared by the customer) Front connector type
Main body use connector: Panel mounting connector plug made in Omron
(Model number)XS2M-D423
  WS Waterproof connector (Front: Straight type) + Cable 2m
  WR Waterproof connector (Front: Light angle type) + Cable 2m
  RN Connector, Cable not included. (If prepared by the customer)Rear connector type
Main body use connector: Panel mounting connector plug made in Omron
(Model number)XS2M-D423
  RS Waterproof connector (Rear Straight type) +Cable 2m
  RR Waterproof connector (Rear Light angle type) +Cable 2m
6.Sensor Type   S Semiconductor sensor:
Inert gases that will not corrode SUS304, SUS316L, Silicon glass, NBR and Silicon gel.
Material: Semiconductor + SUS304 + SUS316L
  H Semiconductor thin-film type sensor:
Water, oil, gases or other media that will not corrode Hastelloy C22 and SUS316L.
Material: Hastelloy C22 + SUS316L
  A Semiconductor thin-film type sensor:
Water, oil, gases or other media that will not corrode Hastelloy C22 and SUS316L.
Material: Hastelloy C22 + SUS316L
  P Semiconductor thin-film type sensor:
Water, oil, gases or other media that will not corrode SUS316L.
Material: SUS316L
7.Rated Capacity(R.C.)   See right table.
Enter the range in the   as it is.		 For inert gases When S sensor is specified 005KPG 5kPa
For Gas and Liquid When H sensor is specified 050KPG50kPa 050KPA50kPa abs
When A sensor is specified
(Only Positive perssure and Absolute pressure)		 100KPG100kPa 100KPA100kPa abs
200KPG200kPa 200KPA200kPa abs
500KPG350kPa
500KPG500kPa 500KPA500kPa abs
700KPG700kPa 700KPA700kPa abs
When P sensor is specified
(Only Negative pressure and Compound pressure)		 100KPG100kPa
200KPG200kPa 
700KPG700kPa 
8.Connection screw ○ R2 R1/4
  • (*1)When specifying compound pressure, select whether to focus on positive pressure or negative pressure for calibration.
    P: Calibrate with focus on positive pressure. N: Calibrate with focus on negative pressure.
  • (*2)Only P (focus on positive pressure) is available for models of rating 200 or more.

External dimensions (Unit: mm)

External dimensions
External dimensions
External dimensions

Wiring diagram

Wiring diagram
Digital Pressure Meter

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