Modell SET-201
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Setra’s Model 201 is an accurate, low cost, pressure transducer for measuring very low differential or gauge pressures. The 201’s all-welded no o-ring construction results in a leak-free design, ideal for the most critical low range applications. The 201 process connection is designed to be used with pressure media compatible with stainless steel and 600 Series Inconel.
Setra’s patented variable capacitance sensor design combines the ultimate in simplicity, with high accuracy and superior thermal stability. It features an Inconel diaphragm and an insulated electrode, which forms a variable capacitor. As pressure increases or decreases, the capacitance changes. This change in capacitance is detected and converted to a fully conditioned linear current output signal.
Its rugged design, high overpessure capability and wide operating temperature, make the Model 201 ideal for the most demanding applications.
| Spezifikationen | |||
|---|---|---|---|
| Performance Data | |||
| Accuracy RSS (at constant temp) | ±0.5% FS | [1] | |
| Non-Linearity, BFSL | ±0.45% FS | ||
| Hysteresis | 0.025% FS | ||
| Non-Repeatability | 0.025% FS | ||
| Thermal Effects Compensated Range | -7 to +80 °C | [2] | |
| Zero Shift | 1.8 %FS/50°C | ||
| Span Shift | 1.4 %FS/50°C | ||
| Warm-up Shift | 0.1% FS/15 Minutes | ||
| Response Time | 20 Milliseconds | ||
| Long Term Stability | 0.5% FS/1 YR | ||
| Proof Pressure | 10 PSI (Ranges up to 2 PSI), 45 PSI (20 PSI Range) | ||
| Burst Pressure | 100 PSI | ||
| Environmental Data | |||
| Operating Temperature | -40 to +80°C | [4] | |
| Storage Temperature | -40 to +85°C | ||
| Acceleration | 10g Maximum | ||
| Shock | 50g Operating | [5] | |
| Physical Description | |||
| Case | Stainless Steel | [6] | |
| Pressure Fitting | 1/4" NPT External | ||
| Vent | Through Barbed Fitting at Bottom of Case | [7] | |
| Electrical Connection | 2ft. Multiconductor Cable 3 Screw Terminal Block | ||
| Zero/Span Adjustment | Top External Access | ||
| Weight | 6 ounces | ||
| Electrical Data (Current) | |||
| Circuit | 2-Wire | ||
| Output | 4 to 20 mA | [8][9] | |
| External Load | 0 to 800 Ohms | ||
| Minimum supply voltage (VDC) | 12 + 0.02 x (Resistance of receiver plus line). | ||
| Maximum supply voltage (VDC) | 30 + 0.004 x (Resistance of receiver plus line). | ||
| Pressure Media | |||
| Positive Pressure Media | Liquids or Gases Compatible with Stainless Steel and Inconel. | ||
| Reference Pressure Media | Clean Dry Air or Non-Corrosive G | ||
| Hinweise | |||
|---|---|---|---|
| [1] | RSS of Non-Linearity, Non-Repeatability and Hysteresis. | ||
| [2] | Units calibrated at nominal 70°F. Maximum thermal error computed from this datum. | ||
| [3] | Proof Pressure: The maximum pressure that may be applied without changing performance beyond specifications (±0.5% FS zero shift). | ||
| [4] | Operating temperature limits of the electronics only. Pressure media temperatures may be considerably higher or lower. | ||
| [5] | Mil-Std. 202F, Method 213B, Cond. C | ||
| [6] | NEMA 4 Rated when A1 electrical termination is ordered. | ||
| [7] | When T1 Terminal strip electrical termination is ordered, venting is through zero or span screw. | ||
| [8] | Calibrated at factory with a 24 VDC loop supply voltage and a 250 ohm load. | ||
| [9] | Zero output factory set to within ±.08mA. Span (Full Scale) output factory set to within ±.08mA. | ||
