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Thumbnail Filmstrip of TE-5012XZ Elapsed Time Indicator (ETI) - 220V 60Hz Images
The TE-5012XZ Elapsed Time Indicator (ETI) is a mechanical clock that counts the hours and minutes that the instrument is actively collecting a sample. Designed specifically for 220-volt, 60-hertz power systems, this essential component tracks actual sampling time for high volume air samplers used in EPA-compliant ambient air quality monitoring.
Mechanical Operation
The TE-5012XZ operates as a pass-through electrical device that monitors power flow to the blower motor assembly. This device is used to track motor life, motor brush changes, and to verify the sampling time. The mechanical display provides reliable, maintenance-free timekeeping without requiring digital components or backup batteries that could fail in harsh outdoor environments.
Key Specifications
- Power Requirements: 220 Volt, 60 Hertz
- Display Format: Mechanical, Hours and Tenths
- Operation: Cumulative runtime tracking
- Construction: Industrial-grade mechanical movement
System Compatibility
The TE-5012XZ integrates into the electrical chain of Tisch Environmental high volume air samplers, typically positioned between the timer and motor assembly. The Mass Flow Controller male cord set plugs into the TE-5012 Elapsed Time Indicator female side, while the male side of the ETI cord set plugs into the TE-5007 7-Day Mechanical Timer timed female cord. This ETI is compatible with:
- TSP high volume air samplers
- PM10 particulate samplers
- PM2.5 monitoring systems
- Mass Flow Controlled (MFC) samplers
- Volumetric Flow Controlled (VFC) samplers
Installation Notes
The TE-5012XZ requires 220-volt, 60-hertz power and is designed for international applications or facilities with 220V electrical systems. For 110-volt applications, use the standard TE-5012. For 220-volt, 50-hertz systems (common in Europe and other regions), use the TE-5012X. Each voltage/frequency variant is specifically calibrated for accurate timekeeping under its designated electrical conditions.
Applications
Essential for EPA-compliant air quality monitoring programs where accurate sampling time documentation is required for regulatory reporting. The elapsed time data supports proper filter exposure calculations, maintenance scheduling, and quality assurance protocols for ambient air monitoring networks.