Amplifier Module(for Pressure/Load)
VPJ series
- Selectable from among 4 analog outputs. [4 to 20mA, 1 to 5V, 0 to 5V, 0 to 10V]
- Power and I/O lines are isolated from each other to enhance noise resistance.
- Can be mounted on the base plate or via the DIN rail adapter.
| Can be combined with sensors | Can be combined with all models of pressure sensors and load cells. |
|---|---|
| Sensor specifications | Refer to the pages of pressure sensors and load cells. |
| Calibration of amplifier and sensor | VPJ amplifiers and pressure sensors or load cells have been calibrated as a pair. Amplifiers and sensors have been calibrated as a pair under the same serial number. |
Specifications
| Applicable sensor | Pressure sensor or load cell of VALCOM |
|---|---|
| Analog output response | 1msec or less (Not including sensor characteristic) |
| Nonlinearity | ±0.1%F.S. (Not including sensor characteristic) |
| Temperature coefficient | ±0.02%F.S./°C (Not including sensor characteristic) |
| Operating temperature range | 0–50°C |
| Operating humidity range | 35–85%RH (No condensation) |
| Dimensions | Base plate type: 115(W)×35(H)×50(D) DIN rail type: 95(W)×40(H)×50(D) |
| Weight | Approx. 190g |
| Accessories | Operating manual 1 copy (Specify English or Japanese.) Test report 1 copy |
Model Selection
Pressure Sensor or Load Cell Selection
Click here for the specifications of pressure sensors, and click here for the loads cells.
Specify the applicable models.
[e.g.] VPJ-A2-50MPa-4/VPRT-50MP(3m cable included)
| Selection | Cheak | Model | Specifications | ||||
|---|---|---|---|---|---|---|---|
| 1.Model | ○ | VPJ | Amplifier Module | ||||
| 2.Analog output | - | - | Output type | Response frequency | Load resistance | Consumption current | |
| A2 | 1–5V | 1kHz | This value has been calculated as response frequency (= 1/2T (Hz)) based on the measured step response (0–100%) and rise time (T) with the sensor bridge resistance of 350Ω. Response frequency is determined by the sensor to be used. Consult with us when focusing on response. | 5kΩ or more | 60mA or less, Approx. 120mA (at DC12V)(*1) |
||
| A3 | 4–20mA | DC24V: 500Ω or less DC12V: 250Ω or less |
70mA or less, Approx. 140mA (at DC12V)(*1) |
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| A4 | 0–5V | 5kΩ or more | 60mA or less, Approx. 120mA (at DC12V)(*1) |
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| A5 | 0–10V | ||||||
| 3.Load type *To be specified only when combining with a load cell. |
Blank | Pressure sensor is selected | |||||
| PS | Compression | ||||||
| PL | Tensile | ||||||
| PSL | Tension and compression *Add a "±" sign to the display range when using for tensile/compression load. |
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| 4.Pressure range, Load range |
Enter the pressure or load range. Refer to the page of the pressure sensor or load cell. *Add a "±" sign to the display range when using for tensile/compression or compound load. |
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| 5.Cable connection | N | Depending on pressure sensor or load cell | Selected pressure sensor: Standard connector | ||||
| W | Selected pressure sensor: Water-proof connector | ||||||
| S | Selected pressure sensor: Straight out cable | ||||||
| Blank | Load cell is selected | ||||||
| 6.Power [Power consumption] | 4 | DC24V±10% | |||||
| 5 | DC12V±10% | ||||||
| 7.Installation specifications | Blank | Base plate | |||||
| D | DIN rail mounting adapter | ||||||
- *1 Consumption current about 3 times that in steady state flows at the rise. Power capacity must be designed with sufficient margin.
Dimensions (Unit: mm)
Input/output terminal block layout
| Terminal | Name | Connect to | |
|---|---|---|---|
| I/O connecter | DC POW (−) | Power input (−) | Power supply |
| DC POW (+) | Power input (+) | ||
| A OUT (−) | Analog output (−) | Analog output | |
| A OUT (+) | Analog output (+) | ||
| Sensor connecter | Shield (E) | Shield | Load cell Pressure sensor |
| SIG+ (D) | Sensor output (+) | ||
| EXC- (C) | Sensor power (−) | ||
| SIG- (B) | Sensor output (−) | ||
| EXC+ (A) | Sensor power (+) |
Digital Panel Meter