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

• 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"

OPTIONS

• Rack Mount
• Extra Gas Inlets
• Solenoid Valve on Output
• Permeation Oven
• 3rd Mass Flow Controller

Documentation

Data Sheet 6100 Serie