Series 9100
Computerized Ambient Monitoring Calibration System
DESCRIPTION
The Environics® Series 9100 Computerized Ambient Monitoring Calibration System is an advanced microprocessor controlled instrument for dynamic calibration of ambient air analyzers. The Series 9100 automatically performs zero, precision, span and multi-point calibrations using NO, NO2, SO2, CO, O3, hydrocarbons and other gases of interest. The Series 9100 exceeds all U.S. Environmental Protection Agency requirements.
The Series 9100 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 25 line by 80 character liquid crystal display. The instrument may also be operated using contact closures or an RS-232 serial data interface.
The mass flow controllers are calibrated to a NIST (National Institute of Standards and Technology) traceable primary flow 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 the non-volatile memory and may be updated by the user with a suitable standard.
The Series 9100 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 as well as built-in pressure compensation.
The Series 9100 is available in either a standard 19" rack mount or bench top configuration.
PRODUCT FEATURES AND BENEFITS
- 25 line by 80 character display permits editing and viewing of an entire seven-day schedule of calibration events in worksheet format.
- 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.
- Internally-stored ozone generator calibration data insures linear, repeatable ozone generation without photometer control. Ozone generator performance exceeds U.S. EPA criteria for ozone transfer standards.
- Ozone generator pressure compensation insures repeatable ozone generation at a flow rate and back pressure other than that at which it was originally calibrated.
SOFTWARE
The Series 9100 has six primary routines.
- Concentration Mode: User enters Target Output Gas Concentration (ppm or %) for the span gas. The actual concentration is displayed during mixing.
- Flow Mode: User enters Target Flow Rate (cc's or liters per minute) for the span gas and dilution gas. Actual flow rates are displayed after mixing is initiated.
- Volts Mode: User enters a command voltage to the mass flow controller and the ozone generator. The actual voltage is displayed during operation.
- Program Mode: Permits multi-event programming and unattended automatic operation of the instrument over a seven-day schedule.
- Calibrate Mode: User enters new calibration data for each mass flow controller and ozone generator. (Can be password protected)
- 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
-
Mass Flow Controllers (as a percent of setpoint)*
Accuracy
From 10 to 100% of Full Scale Flow
Concentration: ± 1.0%
Flow: ± 1.0%
Repeatability: 0.05%
Warm up time: 30 minutes
Response time: 30 seconds to ±2.0% of Setpoint
*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: 0.5 - 1.25ppm at 10 slpm
Accuracy: ±2% or ±0.005ppm at 10 slpm
30 day repeatability: ±2% or ±0.005ppm
Mechanical
Inlets
Balance: One external ¼" Swagelok*
Span(s): One external ¼" Swagelok*
Outlet
One external ¼" Swagelok*
* (or compatible fitting)
Operating Pressures (at inlets)
Minimum: 10 psig (0.67 Bar)
Recommended: 25 psig (1.68 Bar)
Maximum: 150 psig (9.87 Bar)
Wetted Surfaces
Tubing: Teflon
MFC's: Stainless Steel
Seals: Viton®
Operating temperature: 32° - 122° F (0° - 50° C)
Performance temperature: 59° - 95° F (15° - 35° C)
Weight
Minimum: 35 lbs. (16 Kg.)
Maximum: 40 lbs. (18 Kg.)
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
Optional RS-232 serial data interface
Optional Status board interface
Other communications options available
Data Output
Optional RS-232 port serial data interface
Optional Parallel printer port (Centronics compatible)
OPTIONS
- Rack Mount
- Extra Gas Inlets (Limit-six total)
- MFC
- RS-232 Serial Data Interface
- Solenoid Valve on Output
- Status Board
- Permeation Oven
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