Flow Control
0550C
Brooks Mass Flow Controller Record (0550E-Series Identification)
About this part
0550C is an archive identifier associated with Brooks gas mass flow controller listings. Brooks technical literature identifies the supported product as Model 0550E, and the strongest configured-unit evidence carries model code 0550EB34H2DA. The 0550E performance and interface values below are therefore family-level references; gas, full-scale flow, operating pressure, fittings, and options must be confirmed from the individual unit nameplate
Configurations vary. Verify the exact unit before choosing a replacement.
No archived photo available
Key Facts
Specifications
| Manufacturer | Brooks Instrument |
| Technical family represented | Model 0550E gas mass flow controller |
| Controlled medium | Gas |
| Control range | 2–100% of full scale |
| Accuracy | ±1% of full scale over the specified range at calibration conditions |
| Repeatability | 0.25% of rate over the specified range |
| Response time | Output within 2% of full scale of the final value in 5 seconds or less for step changes between 3% and 100% |
| Operating temperature | 15–45 °C |
| Warm-up time | 40 minutes |
| Inlet-pressure range | 10–50 psig; 15–50 psig for 200 slm hydrogen units |
| Calibration pressure | 25 psig |
| Maximum pressure | 1,500 psig |
| Primary power | 105–125 Vac, 50/60 Hz, 15 W maximum |
| Command input | 0–5 Vdc at 0.25 mA |
| Flow outputs | 0–10 Vdc with 2 kΩ minimum load resistance; 0–1 Vdc with 1 MΩ minimum load resistance |
| Reference output | 5 V ±0.2%; intended for use with a 1 kΩ minimum command potentiometer |
| Mating electrical connector | Amphenol 165-10 |
| Standard process connections | 1/4-inch compression fittings |
| Optional process connections | Other inch compression fittings, -4 and -8 VCO, and -4 VCR |
| Weight | 5 lb 10 oz (approximately 2.55 kg) |
| External leak integrity | 3 × 10^-8 cc·atm/s helium maximum, inboard to outboard |
Identifier boundary
No manufacturer literature was located that identifies 0550C as a Brooks model number. Brooks issued a dedicated Model 0550E manual, while an archived unit described as 0550C carries the configured designation 0550EB34H2DA. The 0550C token should not be treated as an exact alias of every 0550E configuration.
Compatibility and replacement context
Installation and service notes
- The integral control valve provides precision regulation and is not a positive shutoff device; use a separate shutoff valve where positive isolation is required.
- Install an upstream filter appropriate to the full-scale flow and keep process piping clean.
- Where practicable, provide at least ten pipe diameters of straight tubing upstream of the controller.
- After installation, Brooks specifies purging with nitrogen for at least 15 minutes. Purging is especially important before or after service with reactive, corrosive, or toxic gases.
- Changing the gas, flow range, restrictor, inlet pressure, or mounting attitude can affect calibration; configured-unit nameplate and calibration data take precedence over family values.
Documentation Downloads
Local PDF copiesPart Photos
0 imagesHistorical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offerThe typical recorded price range is $499.91 to $499.98. Based on 2 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- BROOKS MASS FLOW CONTROLLER 0550C SERIES 20000- SCCM N2 HCL 25 PSIG