Low Pressure Transmitter
VSR3(G3) series50kPa–350kPa
- Measures the low pressures (50 to 350 kPa) with high accuracy.(Nonlinearity: ±0.5%R.C.)
- Abundant analog output available.
[4–20mA (2 wire system, 4 wire system), 1–5V,0–5V,0–10V] - For the cable connection to the sensor, "pigtail", "standard connector", "waterproof connector" and "terminal box" are available.
Measured medium | Dedicated to inert gases (noncorrosive gases) such as air, nitrogen, argon, etc. |
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Pressure Type | Positive, compound and negative pressures can be measured. Contact VALCOM for the measurement of absolute pressure. |
Measured Range | Can be specified within the range of 5 kPa to 350 kPa of rated capacity (Calibration: 2.5 to 350kPa). Specify more than 50% of rated capacity as the calibration range. |
Output type | 4–20mA (2 wire system, 4 wire system), Specify among 4 to 20 mA (2-wire, 4-wire), 1 to 5 V, 0 to 5 V, and 0 to 10 V. |
Specifications
Non Linearity | ±0.5%R.C. |
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Hysteresis | ±0.5%R.C. |
Compensated Temperature Range (Temperature of medium to be measured) | 0–70°C (No condensation or freezing) |
Safe Temperature Range (Temperature of medium to be measured) | −20–85°C (No condensation or freezing) |
Temperature Effect on Zero Balance | ±0.5%R.C./10°C |
Temperature Effect on Load | ±0.5%R.C./10°C |
Safe Overload Rating | 200%R.C. |
Ultimate Overload Rating | 300%R.C. |
Insulation Resistance | 50MΩ or more (DC50V) |
Pressure Port Material | Aluminum 2017 (Pressure port: Semiconductor) |
Connection Screw | Selectable: R3/8 or G3/8 |
Fastening Torque;Recommended | 20N·m |
Fastening Torque;Maximum | 30N·m |
Power supply | 4 DC24V (±10%), 5 DC12V (±10%) *Only 24V DC available when analog output is A5 |
Cable | 4-core shielded (oilproof) cable 2m (Standard) φ6mm(*1) |
Weight | Approx. 150g (Cable not included) |
Accessories | Operating manual 1 copy (Specify English or Japanese.) Test report 1 copy |
- (*1)Waterproof terminal box type does not come with cable.
Model Selection
Selection | Check | Model | Specifications | |||
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1.Model | VSR3 | Silicon diaphragm type Minute/Low Pressure Transmitter *Connection screw: R3/8 |
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VSG3 | Silicon diaphragm type Minute/Low Pressure Transmitter *Connection screw: G3/8 |
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2.Analog output *Only A6 available for waterproof terminal box type |
- | - | Output type | Response frequency | Safe load resistance | Power Consumption |
A2 | 1–5V | 1kHz | 5kΩ or more | Approx. 23mA | ||
A3 | 4–20mA (4-wire) |
333Hz | DC24V:500Ω or less/ DC12V: 250Ω or less |
Approx. 40mA | ||
A4 | 0–5V | 1kHz | 5kΩ or more | Approx. 23mA | ||
A5 | 0–10V | 1kHz | 5kΩ or more | Approx. 23mA | ||
A6 | 4–20mA (2-wire) |
1kHz | DC24V:500Ω or less/ DC12V:150Ω or less |
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3.Calibration | - | - | Rated capacity | Example of calibration range | ||
See right table. Enter the range in the as it is. |
5kPa | 5kPa (0–5)kPa |
±2.5kPa (-2.5–2.5)kPa |
-5kPa (0–-5)kPa |
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50kPa | 50kPa (0–50)kPa |
±50kPa (-50–50)kPa |
-50kPa (0–-50)kPa |
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200kPa | 200kPa (0–200)kPa |
-100–200kPa (-100–200)kPa |
150kPa (0–150)kPa |
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350kPa | 350kPa (0–350)kPa |
-100–300kPa (-100–300)kPa |
300kPa (0–300)kPa |
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4.Cable Connection | Blank | Standard connector Equivalent to IP40 | ||||
W | Waterproof connector Equivalent to IP56 | |||||
S | Pigtail Equivalent to IP54 | |||||
T | Waterproof terminal box type Equivalent to IP55 *Applicable only when analog output is A6. Cable not included |
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5.Power supply | 4 | DC24V (±10%) | ||||
5 | DC12V (±10%)*Not available when analog output is A5 | |||||
6.Length (Cable) | 2m | 2m Standard | ||||
3m | 3m | |||||
5m | 5m | |||||
10m | 10m | |||||
□□m | Other length *Contact our sales office for other cable lengths. |
External dimensions (Unit: mm)
*Refer to line connection here
Pressure Sensor