Da Vinci DVLS3 Simply, Smart Hydrogen Sensor for Gas Chromatographs
description
Transcript of Da Vinci DVLS3 Simply, Smart Hydrogen Sensor for Gas Chromatographs
1
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.