For Wind Pressure Measurement
PDS-A series pressure transducers have diffusional semiconductor strain gages on a silicon diaphragm. PDS-A transducers detect pressures as resistance variation and then convert this variation to electrical signals. These signals are indicated by KYOWA signal conditioners.| Model | Rated Capacity |
|---|---|
| PDS-10GA | 1kPa |
| PDS-25GA | 2.5kPa |
| PDS-50GA | 5kPa |
| PDS-70GA | 7kPa |
| Performance | |
|---|---|
| Rated Capacity | See table above. |
| Nonlinearity | Within??0.5% RO (within??0.7% with 25GA) |
| Hysteresis | Within??0.3% RO |
| Rated Output | ??7 to 23 mV (PDS-10GA) |
| ??13 to 23 mV (PDS-25 to 70GA) | |
| Rated Output Accuracy | ??1.0% RO (PDS-10 & 25GA) |
| ??1.5% RO (PDS-50GA),??2.0% RO (PDS-70GA) | |
| Environmental Characteristics | |
| Safe Temperature Range | -20 to 70??C |
| Safe Humdity Range | 20 to 85% RH (0 to 50??C) |
| Compensated Temperature Range | 0 to 50??C |
| Temperature Effect on Zero Balance | Within??0.1% RO/??C (PDS-10GA) |
| Within??0.08% RO/??C (PDS-25 to 70GA) | |
| Temperature Effect on Output | Within??0.1%/??C (PDS-10GA) |
| Within??0.08%/??C (PDS-25 to 70GA) | |
| Pressure Medium | General air (non-corrosive gas) |
| Electrical Characteristics | |
| Initial Unbalance | Within ??10 mV |
| Bridge Output Resistance | 2 to 6 k?? |
| Power Supply | 10V DC (9.5 to 15 V), 5 mA or less |
| (Bridge power supply of signal conditioner can be used.) | |
| Cable | PDS-A: 4-conductor (0.05 mm 2 ) chloroprene shielded cable, 3 mm diameter by 3 m long, terminated with connector plug |
| (Shield wire is not connected to mainframe.) | |
| Mechanical Properties | |
| Safe Overload Rating | 300% (600% with PDS-10GA) |
| Maximum Line Pressure | 100kPa |
| Natural Frequency | Approx. 1.7 kHz |
| Weight | Approx. 40 g |
| Posture Effect | Zero drift within??0.3%(??0.8% with 10GA) when inclined |
| by 90?? referring to horizontal condition | |
| Internal Volume | High side: Approx. 0.2 x 10 -6 m 3 (0.2 mL) |
| Low side: Approx. 1 x 10 -6 m 3 (1 mL) | |
| Pressure Connection | 4.7 mm diameter volute joint |
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