Environics - Series 2040
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Computerized Multi-Component Gas Blending/Dilution System
The Series 2040 consists of a single chassis supporting up to six (6) mass flow controllers, a serpentine pre-mix zone and a zero dead-space final mixing zone. All gas wetted surfaces are electropolished stainless steel. Seals are gas compatible elastomers.
The Series 2040 employs mass flow controllers calibrated to a NIST (National Institute of Standards and Technology) traceable primary standard.
Commands are entered from the front panel and displayed on a backlit twenty-five line by eighty character liquid crystal display. Calibration sequences are stored in the internal microprocessor for recall by the keypad, optional RS-232 communications or optional status interface.
The Series 2040 is available in either a bench top configuration or an optional standard 19" rack mount.
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Features of Series 2040
- Broad range of dilution ratios (1:1 - 10,000:1 depending on configuration) allows the user to significantly reduce the number of gas cylinders needed to perform compliance tests.
- Multi-component capability permits the user to generate a wide range of complex standards with a minimum inventory of expensive, long lead-time, multi-component gas cylinders.
- Automatic calculation of dilution and span gas flows based on the concentration commanded by the user eliminates the need for manual computation and allows rapid transitition from point to point and scale to scale.
- Internally-stored mass flow controller calibration data improves accuracy.
- High capacity memory permits storage and recall of up to 200 multi-component "recipes", saving time and reducing errors.
- Twenty-five line by eighty character display permits viewing of data in worksheet form.
- Modular design allows user to add additional gas circuits later, reducing initial investment and protecting against obsolescence.
- Optional RS-232 Serial Data Interface permits remote operation and complete integration with a data station.
SOFTWARE
The Series 2040 has seven primary routines accessible through "soft" keys, located immediately below their on-screen labels.
- Concentration Mode: User enters target output gas concentration for the span gas. The actual concentration is displayed during mixing.
- Flow Mode: User enters target flow rate (cc's per minute) for each component gas. Actual flow rates are displayed after mixing is initiated.
- Maintain Ports: User enters the name of the component gas in the source cylinder, its concentration and the port to which it is connected.
- Divider Mode: Allows the user to operate the instrument as a computerized ten step gas divider.
- Automatic Sequencer: Permits unattended automatic operation of the instrument on a programmable seven-day schedule.
- Purge Mode (Optional): Purge component gas circuits and mixing zone.
- Status (Optional): Allows user to remotely activate different modes of the system and also activate external devices
General Specifications
| Depth | 23.5 in |
| Height | 7 in |
| Width | 17 in |
| Power Requirements | 115 VAC (100 to 130 VAC), 50/60 Hz |
| Weight | 70 lbs (max.) |
Additional Specifications
Performance (as a percent of setpoint)
From 10 to 100% of Full Scale Flow
Accuracy
Concentration: ± 1.0%
Flow: ± 1.0% Repeatability ± 0.05%
Warm up time: 30 minutes
Mechanical
Inlets
Balance: One external 1/4" Swagelok™
Purge: One external 1/4" Swagelok™
Analyte: One external 1/4" Swagelok™
Outlet
One external 1/4" Swagelok™
Operating Pressures at inlets
Minimum: 10 psig (0.67 Bar)
Recommended: 25 psig (1.68 Bar)
Maximum: 75 psig (5.04 Bar)
Wetted Surfaces
Tubing: Electropolished 316 Stainless Steel
MFC's: Stainless Steel
Seals: Viton
(Optional - Kalrez, Buna-N, Neoprene, Metal)
Operating temperatures:
32° - 122° F (0° - 50° C)
Performance temperatures:
59° - 95° F (15° - 35° C)