Downhole Series 211-36-820:0-3,500 through 0-25,000 PSIA. Specifically designed for high temperature and high pressure applications where long term stability is important. The material used in construction is compatible with H2S and other highly corrosive media. Instead of an o-ring, an Inconel 600 seal can be purchased and used for virtually maintenance-free, permanent installations. Contact the factory for drawings and details. Specifications Pressure | Pressure Range: | 0-5,000 through 0-20,000 PSIA | | Proof pressure: | 150% of rated range | | Burst pressure: | 200% of rated range |
Thermal Properties | Operating temperature range: | -40°F to +400°F | | Compensated temperature range: | +75°F to +350°F | | | |
Accuracy | Non-linearity and hysteresis combined: | ± 0.15 % F.S. max. (best straight line method) | | Total error band including nonlinearity, hysteresis and thermal effects: | ± .75% F.S. | | Sustained pressure/temperature stability: | When pressurized to full scale pressure at 300°F, full scale output will not shift more than ±.03% F.S. in 14 days nor more than ±.05% FS. in 60 days. | | Sustained pressure/temperature stability: | When pressurized to full scale pressure at 350°F, full scale output will not shift more than ±.05% F.S. in 14 days nor more than ±.07% FS. in 60 days. | | | | | Stability & repeatability: A transducer tested per Steps 1 through 5 below will exhibit a zero balance and sensitivity stability within 0.1% F.S. from Step 1 to Step 5. Zero balance and sensitivity from Step 2 will repeat that of Step 4 within ± 0.1% F.S. | Step 1: | Stabilize unit 4 hours at +100°F. Record output at 0 to 100% F.S. in 25% F.S. pressure steps. | Step 2: | Stabilize unit 4 hours at +350°F Record output at 0 to 100% F. S. in 25% F.S. pressure steps. | | Step 3: | Five pressure cycles from ambient to F.S. pressure and return. Hold 10 minutes at F.S. pressure steps. | | Step 4: | Within two hours after Step 3, record output at 0 to 100% F.S. in 25% F.S. pressure steps. | | Step 5: | Stabilize unit 12 hours minimum at +100°F. Record output at 0 to 100% FS. in 25% F.S. pressure steps. | | | |
Physical Properties | Pressure media: | Any compatible with Alloy UNS N07718 Rockwell C 40 max. | | Weight: | 2.0 ounces max | | | |
Electrical | Excitation: | 1 to 20 VDC (10 VDC nominal) | | Input resistance: | 1500 ± 300 ohms | | Output resistance: | 1500 ± 300 ohms | | Output at zero pressure: | 0 ± 2 % F.S. | | Full scale (F.S.) sensitivity: | 2.6 mV/V ± 2% | | Platinum resistance temperature detector (RTD) | °C, 1000 ohms ± 2.5 ohms to ± IEC 751 ± .12%, Alpha = .00385 | | Insulation resistance: | All conductors together to case: 10,000 Megohms minimum at 50 VDC and +77°F | | | |
Environmental | Acceleration: | 20 G's per MIL-STD-810, METHOD 513.1, PROC. I | | Vibration: | 20 G's per MIL-STD-810, METHOD 514.1, PROC. V | | Shock: | 30 G's per MIL-STD-810, METHOD 516.1, PROC. IV |
Error due to combined effect of shock, vibration, and acceleration shall be less
than .02% of F.S. per G. Electrical Connections | Pin A: | (+) excitation | | Pin B: | (+) signal | | Pin C: | (-) signal return | | Pin D: | (-) excitation return | | Pin E: | (RTD) | | Pin F: | (RTD) |
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