The Environics? Series 6100 Computerized Multi-Gas
Calibration System is a computer controlled, state-of-the-art instrument for dynamic
calibration of ambient air analyzers. The Series 6100 automatically performs
zero, precision, span and multi-point calibrations using NO, NO2, SO2, CO, 03,
hydrocarbons and other gases of interest. The 6100 meets all U.S. Environmental
Protection Agency requirements.
The Series 6100 consists of a single chassis supporting 2
thermal mass flow controllers, an ozone generation module, a mixing zone, a
reaction chamber for gas phase titration, and control electronics.
Commands are entered from the front panel and displayed on a
backlit 4 line by 20 character liquid crystal display. The instrument may also
be remotely operated using contact closures or the RS-232 serial data
interface, both are standard in the Series 6100.
The mass flow controllers are calibrated to a NIST (National
Institute of Standards and Technology) traceable primary standard. The
calibration data consists of a comparison of desired versus actual flow over
the full dynamic range of the instrument with linear interpolation between
points. Calibration data is stored in non-volatile memory and may be updated by
the user with a suitable standard.
The Series 6100 ozone generator is factory calibrated using a
NIST traceable ozone standard. This temperature controlled, ultra-violet (UV)
based ozone generator includes a precision photo-optical feedback circuit to
compensate for lamp aging effects.
The Series 6100 is available in either a standard rack mount or
portable configuration.
PRODUCT
FEATURES AND BENEFITS
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User-friendly
interactive software with plain language prompts is simple to use, reducing
technician training time and virtually eliminating error.
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Automatic
calculation of dilution and span gas flows based on commanded concentration
eliminates the need for manual computation and allows rapid transition from
point to point.
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Internally-stored
mass flow controller calibration data improves accuracy by as much as a factor
of ten and simplifies field recalibration. Mass flow controllers are factory
calibrated at 11 points.
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Internally-stored
ozone generator calibration data insures linear, repeatable ozone generation
without photometer control. Ozone generator performance meets U.S. EPA criteria
for ozone transfer standards.
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Ozone
generator pressure compensation ensures repeatable and stable ozone generation
at pressures other than the original calibration pressure.
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Full,
two-way RS-232 Serial Data Interface (standard) permits remote operation of the
instrument including data collection, gas selection, initiation of zero, span
and multi-point calibrations.
SOFTWARE
- Concentration Mode: In response to
software prompting, user selects gas port, span (cylinder) gas
concentration, output gas flow (total) and output gas concentration. Series 6100 automatically
delivers concentrations at the total flow specified.
- Generate Ozone: Allows user to
specify, then generate a precise concentration of ozone.
- Gas Phase Titration: Utilizes blend and
generate ozone routines to lead user through GPT using "excess
NO" method.
- Flow Mode: Allows user to
manually command a desired rate of flow for each mass flow controller,
individually or together, and with or without ozone.
- Display: Allows user to
monitor flow rates for each mass flow controller separately. Also provides
ozone oven block temperature during generate ozone and gas phase titration
routines.
- Maintain Ports: User enters the
name of the span gas in the source cylinder, its concentration (ppm) and the
port to which the cylinder is connected.
SPECIFICATIONS
Performance*
Accuracy
Concentration: 1.0% setpoint
Flow: 1.0% setpoint
Flow Repeatability: 0.05% F.S.O.
Warm up time: 30 minutes
* Performance
specifications are valid when all Mass Flow Controllers are operating between
10% and 100% of full scale flow.
Mass flow controllers are calibrated using a NIST traceable Primary Flow
Standard, using a Reference Temperature of 25?C (77?F) and a Reference Pressure
of 760 mm Hg (29.92 in. Hg)
Ozone Generator
Concentration Range: 0.02 - 0.5 ppm at 5 - 10 slpm
Optional Ranges: 0.05 - 1.0 ppm at 5 - 10 slpm
Accuracy: +/- 2% or +/- 0.003 ppm
Repeatability: +/- 2% or +/- 0.003 ppm (for 30 days)
Mechanical
Inlets
Balance: External 1/4" Swagelok*
Span(s): External 1/4" Swagelok*
Outlet
One external 1/4" Swagelok*
*(or compatible fitting)
Operating Pressures at inlets
Minimum: 15 psig (1.03 Bar)
Nominal: 25 psig (1.72 Bar)
Maximum: 30 psig (2.07 Bar)
Wetted Surfaces
Tubing: Teflon?
MFCs: Stainless Steel
Seals: Viton?
Glass Chambers: Pyrex?
Operating temperatures
32? - 122? F (0? - 50? C)
Performance Temperature Range
59? - 95? F (15? - 35? C)
Weight
Standard: 20 lbs.
Including Options: 30 lbs.
Dimensions (w x h x d)
Portable: 17" x 7" x 15"
Rack: 19" x 7" x 15"
Electrical
Voltage: 100 to 250 VAC, 50/60 Hz
Current: 2 Amps (maximum)
Operating
Modes
Front panel keypad
Internal timer control
RS-232 serial data interface
I/O control (8 inputs / 8 outputs)
Data I/O
RS-232 serial data interface
I/O Control (8 inputs / 8 outputs)
OPTIONS
- Rack Mount
- Extra Gas Inlets
- Solenoid Valve on Output
- Permeation Oven
- 3rd Mass Flow Controller
single chassis supporting 2 thermal mass flow controllers.
ozone
generation module.
mixing
zone.
reaction chamber for gas phase titration.