Description
The Model 914 is a built-to-order Continuous Emission Monitor (CEM) that includes all the components needed for a compliance monitoring and reporting project. The system uses dry extractive sampling techniques designed to meet government regulations for all types of compliance monitoring.
The sample extraction system of the 914 combines a temperature controlled sample conditioning unit and a heated sampling line to ensure the integrity of the sample gas is reliably maintained. The sample gas is then dried (moisture removed) as required and introduced into the instruments for analysis.
AMETEK uses only instruments that have proven reliable over many years of use in its 914 systems. All of the CEM instruments are EPA certifiable. A recommended analyzer is the AMETEK Western Research Model 9000RM.
The instrument is mounted in a free-standing standard 19-inch open rack. Optional considerations are: an enclosed rack, a free-standing enclosure or a walk-in shelter for environmental reasons. A computer data acquisition system or programmable logic controller providing data collection and control functions for customer specific reporting and auto calibration is optional.
Specifications
| Methodology | Standard – NDUV, NDIR, Zirconium Oxide, Paramagnetic O2 |
| Calibration | DAS/DCS/PLC or selected analyzer, initiated automatically using instrument air and calibration gas standards |
| Sensitivity | Instrument dependent |
| Outputs | Designed to meet customer specifications (standard voltage, current or serial) |
| Range | Designed to meet customer specifications |
| Reporting | Customer-defined format for reporting or regulatory agencies. EPA Part 60 and Part 75. |
| Alarms/Calculations | Designed to meet customer specifications |
| Electrical Requirements | 120/208 VAC or 110/220/240 VAC 50-60 Hz |
| Typical Flow | 2 to 10 SCFH |
| Ambient Temperature | 7 to 49 °C (45 to 120 °F), 5 to 95% relative humidity, non-condensing |
| Physical Dimensions | Application dependent Sample dryers – thermoelectric (Baldwin Environmental, Inc. and others) |
| Current Configurations | |
| Analyzers Available | |
| Single species NDUV + paramagnetic oxygen | Model 9900 SO2, H2S, NO, NO2, O2, NH3, Cl |
| Multi species NDUV + paramagnetic oxygen | Model 9900 for SO2, H2S, NO, NO2, NOx, O2, NH3, Cl |
| Mass flow | S-type pitot tube, optical, etc. |
| Single species NDIR | Various analyzer models available (Siemens, California Analytical, Servomex) |
| Zirconium oxide | Thermox O2 analyzers |
| Probes Available | AWR emission probe AWR mass emission probe M&C probe, c/w calibration port, (optional, blow back, and sample isolation valving) AWR velocity probe (used separate with M&C for mass) Universal probe for Division II applications |
| Sample System | Sample lines – temperature controlled, self-limiting electrical (O’Brien, Technical Heaters) |
| Rack Components | Basic 19” x 24” rack (no panels) Pressure control panel Temperature control panel Customer termination and system alarm panel Flow distribution panel(s) Rack fans (optional) |
| Data Acquisition and Control System | Allan Bradley PLC WTC and VIVICOM DAS (others available upon request) |
| Shelter/Enclosure | Open 19” x 24” rack Enclosed 19” x 24” rack Fiberglass or metal free-standing enclosure AMETEK’s standard walk-in shelters (optional desk/workbench) |
| Area Classifications | Model 914 CEM rack system in General Purpose and Division II (purged) |
| Wetted Components | 316 SS tubing, fittings (Swagelok only) and cell construction Teflon tubing Quartz glass (cell windows) |
