da vinci dvls3 simply, smart hydrogen sensor for gas chromatographs
DESCRIPTION
Envantage is the exclusive North American distributor of the Da Vinci DVLS3 hydrogen sensor. Install this sensor in your GC to reduce the risk of explosion due to hydrogen leaks that may develop around your instrument hot zones.TRANSCRIPT
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DVLS³ (S)imply, (S)mart, multi-(S)ensor “Focus on Hydrogen”
Exclusive North American Distributor
2 2 29 November 2012
4 Reasons for using H2 as a Carrier Gas
1. Fast Analysis: Fast diffusion rate; 4 times faster than
N2
Half as viscous as helium; higher linear gas velocity and shorter retention times
2. High Efficiency: Flattest Van Deemter curve
DVLS³ (S)imply, (S)mart, multi-(S)ensor
3 3 29 November 2012
4 Reasons for using H2 as a Carrier Gas
3. Prolonged Column Life: Some applications have a lower elution temperature, therefore the column life is longer
4. High Efficiency: 3x’s less expensive than its helium equivalent
Bottle or generator
DVLS³ (S)imply, (S)mart, multi-(S)ensor
4 4 29 November 2012
Reluctant to use H2 as a Carrier Gas?
Hydrogen is an Explosive Gas: Undetected gas leaks can lead to
an explosion in the GC Oven
LEL 4% hydrogen in Air
DVLS³ (S)imply, (S)mart, multi-(S)ensor
5 5 29 November 2012
DVLS³ (S)imply, (S)mart, multi-(S)ensor Hydrogen Sensor
6 6 29 November 2012
DVLS³ (S)imply, (S)mart, multi-(S)ensor Sensor Installed in the GC Oven
7 7 29 November 2012
DVLS³ (S)imply, (S)mart, multi-(S)ensor Carrier Gas Switch
8 8 29 November 2012
DVLS³ (S)imply, (S)mart, multi-(S)ensor Sequence Stop after Analysis
9 9 29 November 2012
DVLS³ (S)imply, (S)mart, multi-(S)ensor Calibration
Zero Point Calibrated Using Air
Alarm level Calibrated using Calibration Mixture
Yearly or after maintenance or repair
10 10 29 November 2012
DVLS³ (S)imply, (S)mart, multi-(S)ensor Alarms
Acoustic
Optical (blinking display)
SMS Message
11 11 29 November 2012
DVLS³ (S)imply, (S)mart, multi-(S)ensor Catalystic Pellistor Sensor & Wheatstone Bridge
12 12 29 November 2012
DVLS³ (S)imply, (S)mart, multi-(S)ensor Summary & Benefits
Catalytic Pellistor gas specific sensor, linear range of 0-2% H2 (0-50% LEL)
Unaffected by humidity, stable output for long periods, more resistant to shocks and vibrations.
Expected lifetime: over five years
Long term stability; drift sensitivity: less than 2mV a month
User defined alarm: optical, acoustic and/or SMS up to 50% LEL
Instrument readings: provide real time sensor readings with alarm levels, channel states
User menu for configuration (password protected)
Valve : High pressure 3 way solenoid valve
Oven operating temperature: up to 450ο C
Multiple Sensors: Max 4 sensors individually controlled
Sensor options: temperature, barometer, level, oxygen or hydrogen as
a leak detector.