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Pressure Transmitter 
Elastomer Sealed Pressure Controllers
Achieve better accuracy, stability and reliability with stable electronic pressure controllers.
Elastomer sealed pressure controllers from Brooks Instrument are designed to be rugged, durable and cost-effective while delivering the sustained and proven accuracy users worldwide count on from the leader in fluid measurement and control. Our electronic pressure controllers utilize the core control technology present in our industry-leading thermal mass flow controllers.
Our elastomer sealed pressure controllers deliver closed loop control by eliminating the droop and hysteresis associated with traditional mechanical spring diaphragm pressure regulators. Brooks pressure controllers are available with internal pressure sensors to control pressure up to 4500 psig. The result: electronic pressure controllers that keep critical processes on-target.
PRODUCTS
|  |  | |
| Product Type | Pressure Controller & Flow Meter | Pressure Controller | Pressure Controller |
| Differentiator | Remote Transducer Pressure Control & Flow Measurement | Wide Pressure Measurement & Control Range | NEMA 4X/IP66 approved enclosure Perfect for hosedown/washdown applications Wide Pressure Measurement & Control Range
|
| Pressure Control Range | 100:1 for a remote transducer with a 0-10 V output | Turndown 100:1 for FS from 1-50 lpm 50:1 for all other FS flows | Turndown 100:1 for FS from 1-50 lpm 50:1 for all other FS flows |
| Flow Range (Full Scale Capacity) | Any range 0 to 3 sccm to 0 to 30,000 sccm N2 Eq. | .003 – 50 lpm | .003 – 50 lpm |
| Accuracy | Flow Accuracy: ±1% F.S. including linearity at the calibration conditions ±1.5% F.S. for flow rates greater than 20 slm | Pressure ±0.25% of Transducer FS (FS > 300 psia) Flow N/A | Pressure ±0.25% of Transducer FS (FS > 300 psia) Flow N/A |
| Response Time | Pressure Response Time: < 0.8 sec typical for a 0-100% command step with <2% pressure overshoot. Actual pressure response depends on system design. | System dependent | System dependent |
| Repeatability | ±0.25% of rate | 0.20% SP | 0.20% SP |
| Seal Material | Elastomer or Metal | Elastomer | Elastomer |
| Diagnostic Capability | — | Available | Available |
| Analog Communication | 0-5 V | 0-5 V, 1-5 V, 0-10 V, 0-20 mA, 4-20 mA | 0-5 V, 1-5 V, 0-10 V, 0-20 mA, 4-20 mA |
| Digital Communication | — | DeviceNet™ Profibus® RS-485 | DeviceNet™ Profibus® RS-485 |
| Size | Compact | Medium | Large |
| Certifications/Approvals | — | ATEX IECEx | ATEX IECEx |
| Brands |
|---|
| Model Name | APT3500 | |
| Protocol | Digital Communication, HART 7, Fieldbus Foundation | |
| Trim ability | Zero, DAC, FULL | |
| Power supply & Load Requirement | 250 to 550 ohm @ 24 Vdc, Loop Powered | |
| Falure Mode | Low ≤ 3.78 mA, High ≥ 21.1 mA | |
| External Buttons | Zero & Span 2 buttons for device configuration | |
| Process Temp. limit | -40 to 120℃ ( -104 to 248℉ ) | |
| Range Abilitiy | 100:1 | |
| Stability | 0.125% URL for 60 months |
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