Sanitary Digital Differential Pressure Transmitter
VSD4 series PAT.50kPa–1000kPa
*Image is ISO Ferrule 2S type
- Determines differential pressure by computing the outputs from two pressure sensors.
- Output 4-20mA (2 wire system) scaling function.
- Chooses from One output (Only the output of difference pressure) and Two output (The output of difference pressure + The Output of low pressure side)
- Pressure port with higher strength.
- Safe and reliable construction with no sealed liquid.
- Standard functions
●Display switch (Differential pressure, High pressure, Low pressure)
●Damping ●Loop check function ●FIX zero ●Zero shift
●Maximum/Minimum monitoring function
●Setting output status at error ●Key lock function
| Measured medium | Liquor, milk beverage, seasoning, pure water, chemical or other media. (These vary according to sensor materials) |
|---|---|
| Pressure type | Positive pressure |
| Pressure range | Can be specified within the range of 50 kPa to 1000 kPa of rated capacity. |
| Output type | 4–20mA(2-wire) Output scaling variable Output scaling can be changed within the range of 10 to 100% of the rated capacity. |
Specifications1 (Sensor assembly)
| Pressure Port Type/Size | ISO Ferrule/VARIVENT®/ISO Cap-nut/Other custom |
|---|---|
| Rated capacity | 50kPa–1000kPa |
| Pressure port material | Sensor: SUS316L, Equivalent to Hastelloy C-276, SUS329J4L |
| Other parts material | Case part: Aluminum die casting, Front sheet part: PET, Radiating fin and adapter part: SUS304 |
| Overload limit | 400%R.C. |
| Destruction point | 1000%R.C. |
Specifications2 (Amplifier part + Sensor part)
| Display | 7 segment 4-digit LCD display Character height: Approx. 12.7mm Display range Approx. 3.5 times/sec. |
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|---|---|---|---|
| Accuracy at room temperature(*1) (Including Nonlinearity, Hysteresis, and repeatability) |
Differential pressure | Scaling in 20–100%R.C.: ±0.7%F.S.±1digit. Scaling in 10–20%R.C.: ±1.4%F.S.±1digit. |
|
| Low pressure | 2 output | Scaling in 20–100%R.C.: ±0.5%F.S.±1digit. Scaling in 10–20%R.C.: ±1%F.S.±1digit. |
|
| 1 output (Without analog output) |
±0.5%F.S.±1digit. | ||
| High pressure (Without analog output) |
±0.5%R.C.±1digit. | ||
| Temperature compensation range (Sensor assembly) | -5–150°C (Measurement pressure medium) | ||
| Safe temperature range (Sensor assembly) | -5–150°C (Measurement pressure medium) | ||
| Temperature effect on zero balance | ±0.6%R.C./10°C or less (Rated 300kPa, 500kPa, 1000kPa) ±0.7%R.C./10°C or less (Rated 50kPa, 100kPa, 200kPa) |
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| Temperature effect on load | ±0.6%R.C./10°C or less (Rated 300kPa, 500kPa, 1000kPa) ±0.7%R.C./10°C or less (Rated 50kPa, 100kPa, 200kPa) |
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| Ambient temperature and humidity range | 0–50°C (No condensation or freezing) | ||
| Material | Case part: Aluminum die casting, Front sheet part: PET Radiating fin and adapter part: SUS304 |
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| IP Rating | Equivalent to IP67 | ||
| Mass | Approx. 670g | ||
| Accessories | Operating manual 1 copy, Test report 1 copy, Cable gland Brackets for exclusive use of the PP type U character bolt for brackets for exclusive use of the PP type Hexagon nut for PP type fixation |
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- (*1)For the ferrule type, zero adjustment is to be made after the clamp is tightened.
About Model Selection
Display/Calibration
This product computes the difference between the pressures applied to high-pressure and low-pressure sensors by CPU, and outputs the result as an analog signal.
(Formula): Pressure applied to high-pressure sensor − Pressure applied to low-pressure sensor = differential pressure
<Notice>
Unlike the case with general differential pressure gauge, when using for measurement on tank, select a value greater than the maximum pressure for the "display/calibration range".
When using for measurement on filter, etc., select a value greater than the line pressure. <Chooses from the model selection table ②>
— About a display and adjustment of an analog output —
This product can change analog output within the range 10 to 100% of the rated capacity.
One output: Only the output of difference pressure,
Two output: The output of difference pressure + The Output of low pressure side
— Analog output adjustment shipment (VSD4-SC1) —
Analog output is factory-adjusted to the desired value within the range 10 to 100%, with the display/calibration range while the set at 100%. (Option)
<Example>
When using a rated capacity of 100kPa, and outputting analog signal of 4 to 20mA for the pressure of 0 to 70kPa.
One output(Only the output of difference pressure):
VSD4-SC1: Differential pressure 0 to 70kPa
Two output(The output of difference pressure + The Output of low pressure side):
VSD4-SC1: Differential pressure 0 to 70kPa, Low pressure 0 to 70kPa
Analog output
Chooses from One output(Only the output of difference pressure) and Two output(The output of difference pressure + The Output of low pressure side) <Selected by Model selection table ③>
Sensor connection
Please choose from three types of the following figure.
<Selected by Model selection table ④>
Rated capacity
Varies with the selected display/calibration range
<Notice>
*Rated capacity of high-pressure and low-pressure sensors must be selected within the same range.
<Selected by Model selection table ⑤>
Pressure port
Select type and material for high-pressure and low-pressure ports respectively.
Type: <Selected by Model selection table ⑥, ⑨>
Material: <Selected by Model selection table ⑦, ⑩>
(*Surface treatment for the pressure port varies with the selected material.)
Sensor cable
Select the cable length for high-pressure and low-pressure sensors. (Up to 40m)
<Selected by Model selection table ⑧, ⑪>
Model Selection
| Selection | Check | Model | Specifications | |||
|---|---|---|---|---|---|---|
| 1.Model | ○ | VSD4 | High temperature type: Temperature range of wetted parts -5–150°C | |||
| 2.Display/Calibration | A | 50.0kPa | ⑤Model selection of rating capacity is [005] | |||
| B | 50.00kPa | |||||
| C | 100kPa | ⑤Model selection of rating capacity is [010] | ||||
| D | 100.0kPa | |||||
| E | 200kPa | ⑤Model selection of rating capacity is [020] | ||||
| F | 200.0kPa | |||||
| G | 300kPa | ⑤Model selection of rating capacity is [030] | ||||
| H | 300.0kPa | |||||
| J | 500kPa | ⑤Model selection of rating capacity is [050] | ||||
| K | 500.0kPa | |||||
| L | 1000kPa | ⑤Model selection of rating capacity is [100] | ||||
| M | 1.000MPa | |||||
| 3.Analog output/Power supply | 16 | 4–20mA (2-wire system) 1 output (Only the output of difference pressure) |
Response: Damping (Soft filter) Default: 2 seconds (0.5Hz) Safe load resistance: Power supply voltage DC24V (DC15.64–26.5V), 380Ωmax. Cureent consumption Approx. 23mA |
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| 26 | 4–20mA (2-wire system) 2 output (The output of difference pressure + The Output of low pressure side) |
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| 4.Sensor connection | AP | High pressure side: Direct / Low pressure side: Separate | ||||
| PA | High pressure side: Separate / Low pressure side: Direct | |||||
| PP | High pressure side and Low pressure side: Separate | |||||
| 5.Rated capacity | 005 | 50kPa | ②Display/calibration range should be selected between A and B | |||
| 010 | 100kPa | ②Display/calibration range should be selected between C and D | ||||
| 020 | 200kPa | ②Display/calibration range should be selected between E and F | ||||
| 030 | 300kPa | ②Display/calibration range should be selected between G and H | ||||
| 050 | 500kPa | ②Display/calibration range should be selected between J and K | ||||
| 100 | 1000kPa | ②Display/calibration range should be selected between L and M | ||||
| High Pressure Side | ||||||
| 6.Pressure Port Type/Size |
F1 | ISO Ferrule 1.5S | ||||
| F2 | ISO Ferrule 2S | |||||
| F3 | ISO Ferrule 2.5S | |||||
| F4 | ISO Ferrule 3S | |||||
| F6 | ISO Ferrule 4S | |||||
| V50A | VARIVENT® DN50 | |||||
| V65A | VARIVENT® DN65 | |||||
| V80A | VARIVENT® DN80 | |||||
| V100A | VARIVENT® DN100 | |||||
| R1 | ISO Cap-nut 1.5S with Hexaganal nut (HEX61) | |||||
| R2 | ISO Cap-nut 2S with Hexaganal nut (HEX76) | |||||
| M0 | Single screw mount type Dedicated O-ring 1 pc attached | |||||
| M1 | With JIS20K50A flange Dedicated O-ring 1 pc attached | |||||
| M2 | With JIS20K80A flange Dedicated O-ring 1 pc attached | |||||
| 7.Pressure port material | Blank | SUS316L (Standard type) |
Electrolytic polish (Rz0.7µm, Ra0.2µm) |
to all the rated apacity (⑤) to all the type and size (⑥⑨) |
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| HS1 | Equivalent to Hastelloy C-276 (Option) |
Electrolytic polish (Rz0.7µm, Ra0.2µm) |
Select from the rated capacity of 300, 500, 1000kPa (⑤) Select from the type and size of F1, F2, F3, M0 (⑥⑨) |
[Made-to-order] Negative pressure and compound pressure are not supported |
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| J4L | SUS329J4L (Option) |
Buffing (#400) |
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| 8.Connect to Amplifier | A | Direct | ||||
| P□□ | Length specification of a separate cable (1–40m) <Example> 3m: [P03] / 15m: [P15] / 30m: [P30] |
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| Low Pressure Side | ||||||
| 9.Pressure Port Type/Size |
F1 | ISO Ferrule 1.5S | ||||
| F2 | ISO Ferrule 2S | |||||
| F3 | ISO Ferrule 2.5S | |||||
| F4 | ISO Ferrule 3S | |||||
| F6 | ISO Ferrule 4S | |||||
| V50A | VARIVENT® DN50 | |||||
| V65A | VARIVENT® DN65 | |||||
| V80A | VARIVENT® DN80 | |||||
| V100A | VARIVENT® DN100 | |||||
| R1 | ISO Cap-nut 1.5S with Hexagon nut (HEX61) | |||||
| R2 | ISO Cap-nut 2S with Hexagon nut (HEX76) | |||||
| M0 | Single screw mount type Dedicated O-ring 1 pc attached | |||||
| M1 | With JIS20K50A flange Dedicated O-ring 1 pc attached | |||||
| M2 | With JIS20K80A flange Dedicated O-ring 1 pc attached | |||||
| 10.Pressure port material | Blank | SUS316L (Standard type) |
Electro polish (Rz0.7µm, Ra0.2µm) |
to all the rated apacity (⑤) to all the type and size (⑥⑨) |
||
| HS1 | Equivalent to Hastelloy C-276 (Option) |
Electro polish (Rz0.7µm, Ra0.2µm) |
Select from the rated capacity of 300, 500, 1000kPa (⑤) Select from the type and size of F1, F2, F3, M0 (⑥⑨) |
[Made-to-order] Negative pressure and compound pressure are not supported |
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| J4L | SUS329J4L (Option) |
Buffing (#400) |
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| 11.Connect to Amplifier | A | Direct | ||||
| P□□ | Length specification of a separate cable (1–40m) <Example> 3m: [P03] / 15m: [P15] / 30m: [P30] |
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External dimensions (Unit: mm)
Output Specifications
