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