The Tracer2™ addresses the need for accurate, reliable process controls, and moisture sampling at levels at or below single-digit parts-per-billion. It is ideally suited for ultra-high-purity moisture detection in semiconductor manufacturing processes, inert and specialty gases, component and system testing, and laboratory research applications.
Based on Faraday's Law of Electrolysis, the TRACER 2 sensor absorbs and electrolyzes moisture down to fractional ppb's. How? One hundred percent of the sample moisture is absorbed by aphosphorus pentoxide (P2O5) film that covers two spirally-wound electrodes embed in a hollow glass tube
Tracer 2™ Specifications:
|Operating range:||Inerts: 0 - 2000 ppb|
Oxygen: 0 - 1200 ppb
Hydrogen: 0 - 500 ppb
♥ Cell - 700 ppt LDL
|Sensor:||MEECO Counter flow Cell|
(U.S. Patent No.s 5225065 and 5198094)
|Accuracy:||Inert Mode: 4% of reading or ± 4 ppb, whichever is greater.|
H2/O2 Mode: When the value is < 50 ppb, the accuracy is 6% of reading or ±6 ppb, whichever is greater.
When the value is >50 ppb, the accuracy is 2% of reading or ±20 ppb, whichever is greater.
|Alarms:||Two configurable alarms. Can be set anywhere within the operating range.|
Alternately, use it as a responsiveness check or gas trend indicator. One system alarm for cell responsiveness and flow.
|Flow Control:||Provided by NIST traceable mass flow controllers.|
Required Flow: 1200 SCCM minimum
|Low Detection Limit:||1 ppb at 95% Confidence Limit|
|Mounting:||Standard 7" X 19" Rack Mount for up to two TRACER 2 units|
|Environmental Conditions:||+10° to +40° Celsius|
+50° to +104° Fahrenheit
20% to 80% RH, non-condensing, non-corrosive atmosphere
Optimal performance is achieved when temperature fluctuation is maintained below +/-2°C.
|Sample Gas:||Air, Argon, Carbon Dioxide, Carbon Tetrafluoride*, Helium, Hydrogen, Methane*, Neon, Nitrogen, Krypton, Sulfur Hexafluoride, Oxygen, Xenon, non-corrosive/non- toxic gases.|
(* these gases may require special handling. Please consult factory before use.
|Sample Inlet Pressure:||30 - 150 psig (2 -10.2 Bar)**|
**For lower pressure, consult factory
|Sensitivity:||0.5 ppb or below|
|Signal Output:||One 0-5V DC and 4-20m A analog output: user defied and scaled.|
RS-232 serial communication port, two level and one system alarm
|User Interface:||2-line X 20 character Vacuum|
5-key Membrane Keypad
|Speed Response:||Response to 5 ppb intrusion is 50% in 15 minutes.|
|Configuration:||TRACER 2 DUO: Two TRACER 2s in one 7" X 19" rack mount box.|