Series 2010
Computerized Automotive Gas Divider
DESCRIPTION
The Environics® Series 2010 Computerized Automotive Gas Divider is an advanced microprocessor controlled instrument for the dynamic calibration of automotive or mobile source emissions analyzers. The Series 2010 automatically performs standard ten-step dilusions of all calibration gases in accordance with U.S. Environmental Protection Agency protocols. The 2010 may also be used to generate calibration standards in user specified concentrations (%, ppm or ppb) by dynamic dilution of higher concentration source cylinders. The concentrations generated may be varied infinitely within the operating range of the instrument.
The Series 2010 consists of a single chassis supporting three thermal mass flow controllers, a serpentine pre-mix zone and a zero dead space final mixing zone. All gas wetted surfaces are electropolished stainless steel, and seals are gas compatible elastomers. The instruments mass flow controllers are factory calibrated using a primary flow standard traceable to the United States National Institute of Standards and Technology (NIST).
Commands are entered from the front panel and displayed on a back-lit 25 x 80 character LCD display. Calibration sequences are stored in the internal microprocessor memory for recall by the keypad, optional RS-232 commincation or optional status interface.
The Series 2010 is available in either a bench top or an optional 19" rack mount chassis.
PRODUCT FEATURES AND BENEFITS
- Automated 10 step divide mode which allows user to specify divide points, dwell time and sequence provides operational flexibility and saves technician time.
- 3 mass flow controller design which allows the user to go as low as a 1% step (% of cylinder gas concentration) with no loss of accuracy. The user can generate a wider range of standards with each cylinder thus saving on gas costs.
- Optional RS-232 Serial Data Interface and status outputs permit integration with existing and future automotive emissions test benches.
- Gas mixing on a mass flow basis eliminates complicated pressure controls and inaccuracies due to critical orifice erosion and temperature variations.
- Internally-stored mass flow controller calibration data improves accuracy by as much as a factor of ten and simplifies field recalibration.
- Optional ozone generator and gas phase titration module allows the user to automatically check NOX converter efficiency without investing in a second instrument.
SOFTWARE
The Series 2010 has six primary software routines.
- Divide Mode: Allows the user to operate the instrument as a computerized ten step gas divider.
- Concentration Mode: User enters target output gas concentration for the span gas. The actual concentration is displayed during mixing.
- Automatic Sequencer: Permits unattended automatic operation of the instrument on a programmable seven day schedule.
- Flow Mode: User enters target flow rate 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.
- Purge Mode: Purge component gas circuits and mixing zone.
SPECIFICATIONS
Performance (as a percent of setpoint)
Accuracy
From 10 to 100% of Full Scale Flow
Concentration: ± 1.0%
Flow: ± 1.0%
Repeatability: 0.05%
NOTE: Mass flow controllers are calibrated using a NIST Traceable Primary Flow Standard,
using a reference temperature of 0°C (32°F) and a reference pressure of 760 mm Hg (29.92 in. Hg).
Ozone Generator/GPT Module (optional)
Ozone Concentration Range: 250-500 ppm at 1 slpm (using pure 02 as source gas)
Mechanical
Inlets
Dilution: External 1/4" SwagelokTM
Span(s): External 1/4" SwagelokTM
Ozone source gas: External 1/4" SwagelokTM
Outlet: External 1/4" SwagelokTM
Operating Pressures
Minimum: 10 psig (0.67 Bar)
Recommended: 25 psig (1.68 Bar)
Maximum: 75 psig (5.04 Bar)
Wetted Surfaces
Tubing: Electropolished 316L Stainless Steel
MFC's: Stainless Steel
Seals: Viton®
Operating temperature: 32° - 122° F (0° - 50° C)
Performance temperature: 59° - 95° F (15° - 35° C)
Weight
Minimum: 16 Kg (35 lbs)
Maximum: 32 Kg (70 lbs)
Dimensions (w x h x d)
Portable: 17" x 7" x 23.5"
(43.18 cm x 17.78 cm x 59.69 cm)
Rack: 19" x 7" x 23.5"
(48.26 cm x 17.78 cm x 59.69 cm)
Electrical
Standard: 115 VAC (100 to 130 VAC), 50/60 Hz
Optional: 220 VAC (200 to 260 VAC), 50/60 Hz
Current: 3 Amps (maximum)
Electronics
Inmos T 400 series, 32 bit processor
12 bit A/D and D/A conversion
Operating Modes
Front panel membrane keypad
Internal timer control
RS-232 terminal mode / Remote computer control (optional)
Status board interface (optional)
Other communications options available
Data Output
Optional RS-232 serial port / Parallel printer port interface
OPTIONS
- RS-232 / Parallel Port Interface
- Ozone Generator / GPT module
- Status Board
- Extra Gas Inlets (limit 6)
- Solenoid Valve on Output
- Humidification
- Pressurization
Viton® is a registered trademark of Dupont Dow Elastomers
