Gas monitoring equipment for medical applications PAS Sense 1512

for detectionfor process monitoringfor environmental analysis

Product overview
The ENVEA PAS Sense 1512 is a photoacoustic infrared gas monitor for quantitative measurement of gases that absorb mid‑IR radiation. Using up to five interchangeable optical filters it can quantify up to five component gases plus water vapor in a single air sample. The instrument is suitable for bench mounting or portable field use and supports remote operation and data exchange via USB, Ethernet and RS232 (TCP/IP).

Features and benefits

• Measures up to five gases plus water vapor using optical filter channels
• Selective measurement across a wide range of IR‑absorbing gases and vapors (VOC, SF6, EtO, CO2, NH3, etc.)
• Linear response over a wide dynamic range for accurate quantification
• Low maintenance: typically requires at most two calibrations per year
• Easy calibration, configuration and data access via PC (USB, Ethernet, RS232)
• Compensates temperature, pressure and water vapor interferences; supports cross‑compensation for known interferents
• Extremely low sample purge volume and negligible warm‑up time for rapid deployment
• Expandable monitoring: up to 24 sampling locations with the 1409 Multipoint Sampler

Main applications

• Leak testing of insulated switchgear for SF6 emissions
• Automotive evaporative (SHED) permeation testing for VOC emissions
• Ambient VOC monitoring of organic solvents
• Ventilation performance and air‑exchange studies
• Monitoring anesthetic agent gases in operating rooms for personnel safety
• Agricultural emissions from soil, manure and livestock
• Greenhouse gas emissions monitoring
• Ethylene oxide monitoring in medical device sterilization facilities
• Formaldehyde detection for personnel safety
• Detection of harmful gases in battery manufacturing processes
• Air conditioner refrigerant emissions monitoring (R134a, HFO‑1234yf)
• Photocatalytic material testing and laboratory research
• Detection of mid‑IR absorbing airborne pollutants with ppb‑level sensitivity

Technical information (selected)
Measured gases: EtO / SF6 & CO2 / NH3, ethanol, N2O, CO2, CO & H2O
Zero drift: Typically ± detection limit per 3 months
Influence of temperature (sensitivity): ±10% of detection limit/°C
Influence of pressure (sensitivity): ±0.5% of detection limit/mbar
Repeatability: 1% of measured value
Range drift: ±2.5% of measured value per 3 months
Temperature effect (range drift): ±0.3% of measured value/°C
Pressure effect (range drift): -0.01% of measured value/mbar
Notes: Specifications determined using 100× detection limit concentration; measured at 1013 mbar and 20 °C, RH 60%; detection limit reported as 5 s S.I.T.

Technical specifications

• Model: PAS Sense 1512
• Brand: ENVEA
• Measurement principle: Infrared photoacoustic detection with optical filters
• Channels/filters: Up to 5 filter channels (measures 5 gases + water vapor)
• Repeatability: ~1% of measured value
• Zero and range drift: see technical information
• Internal storage: 131072 measurement cycles (≈22 days at 15 s cycle)
• Dimensions (HxWxD): 195 x 443 x 244 mm
• Weight: 11 kg
• Interfaces: USB, Ethernet, RS232; TCP/IP remote control support
• Options: Expandable to 24 sampling points with 1409 Multipoint Sampler; bench or portable mounting