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
? User-friendly interactive software with plain
language prompts is simple to use, reducing technician training time and
virtually eliminating error.
? 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.
? 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.
? 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.
? Ozone generator pressure compensation ensures
repeatable and stable ozone generation at pressures other than the original
calibration pressure.
? 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.