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Appendix B: Cal=Trak Specifications
Configuration: Interchangeable modular flow cells, all calibrated elements except crystal time base are in cell
Base Unit
Size 6" W x 10.5" D x 4" H 15.2 cm W x 26.7 cm D x 10.2 cm H
Weight 4.2 lbs 1.9 kg
Flow Cells
Size 13" H x 4” diameter 33 cm H x 10.2 cm diameter
Weight 5.8 lbs 2.6 kg
Flow Ranges:
Model Optimum Flow Range
Cal=Trak SL-800-10 5.0 sccm–500 sccm
Cal=Trak SL-800-24 50 sccm–5 slm
Cal=Trak SL-800-44 500 sccm–50 slm
Maximum flow rate is 50 slm at sea level, at higher altitudes piston may not return at flow rates higher than 40 slm.
Absolute Accuracy, Single Readings
All accuracies are based on % of readings. Averaging multiple readings will increase repeatability and accuracy.
Flow Cell Standardized (15°–30°C)
Cal=Trak SL-800-10 ±0.15%
Cal=Trak SL-800-24 ±0.15%
Cal=Trak SL-800-44
±0.15%
Suitable Gases Non-corrosive, humidity less than 70%, non-condensing
Time per Reading Approximately 1 to 60 seconds, flow & cell dependent
Operating Modes Single cycle, continuous cycling or 1 to 255 minute intervals
Measuring Cell Graphite composite piston in borosilicate glass cylinder
Temperature Range 15–30 C
Temperature & Pressure Sensors Located below piston in flow cell; barometric pressure sensor located in base unit
Valve magnetic acting design (to prevent heating of gas stream), self-relieving
Battery System Internal continuously chargeable sealed 6V lead-acid battery
AC Charger | Adapter 100–240 VAC 47–63 Hz
Self-Test Piston Tare Value (Leak Rate)
Outputs Illuminated LCD display, RS-232 serial port (CSV format)
Warranty 1 year
Note: Annual calibration offered by Sierra is elective and is not included as a warranty item.
Software Revision 2.03
All specifications are subject to change. Please contact Sierra or visit our web site at www.sierrainstruments.com for the most current
product information.