Cryo-Free System

7200CTS+ vs Unity-xr™/CIA Advantage-xr™

Based on a revolutionary patented capillary column trapping system, packed traps have been totally eliminated from the design. If eliminating LN2 is high on your list, you have to look at the benefits of the 7200CTS relative to other commercial offerings:

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    7200CTS requires less than half of the bench space vs. Markes CIA Advantage-xr

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    Eliminates temperamental Peltier Cooling, using just fans to cool down to trapping temperatures (35°C typical).

  • Far better water management than the competition, whether analyzing canisters at 3% RH to virtually 100% RH.

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    Capillary traps produce far better peak shape for light end compounds than the competition, without having to split the sample during injection.

  • Now Nitrogen compatible. Drops total Helium consumption of 7200CTS+ and GCMS by as much as 90%

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    Split-less injections create compatibility with next generation smaller canisters for ambient air monitoring.

  • Far more resistant to contamination.

  • Faster cool down times after bakeout (3-3.5 min).

  • Amazing linearity over a very wide dynamic range of concentrations (1000x) means fewer dilutions, fewer reruns, and therefore greater productivity.

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    Most compounds showing single-digit %RSDs across a wide range of concentrations. Easily meets or exceeds EPA TO15 requirements

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    Improved low volume measurements (3cc), with a built in loop to reduce volumes down to 1cc to further reduce the need for sample dilution.

  • All this at a lower price than the competition!

  • Compatible with many more autosampler options, including robotic systems, than Markes Unity-xr

Cryogenic System

7200A+ Features

Upgraded and improved version of the 7200, so migration to the 7200A will create virtually no changes in data packages and reporting limits.

  • Much shorter run times and cycle times = Higher Productivity. Cycle times as short as 20-25 minutes for 250mL sample.

  • Extremely Fast Injection Technology (EFIT) reduces bandwidth to 1 second or less on column and provides for peak widths of just 1.5 to 2 seconds.

  • Reduced LN2 consumption compared to prior preconcentrators (7200, 7100A)

  • Superior water management reduces impact on GCMS relative to prior art

  • Less column bleed resulting in better baselines and fewer source cleanings

  • Now Nitrogen compatible. Drops total Helium consumption of 7200A+ and GCMS by as much as 90%

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    As with all Entech preconcentrators, NO mass flow controllers.

  • Accu-Sample Technology that improves data reliability and inter-sample isolation.

  • Improved trap heater design for more even heating and cooling.

  • Better sample to sample precision, especially for smaller volumes (soil gas).

  • Greater method consistency from one 7200A to the next.

  • Improved water management.

  • Better linearity.

  • Overall greater productivity.

    Faster Cycle Times, Less Contamination, Less Downtime, Fewer Dilutions, No issues with high CO2/Methane.

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    Far less bench space than competitors offerings.

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    Utilizes weaker adsorbents than competitor's preconcentrators, allowing much faster clean-up.

  • New intuitive software design with enhanced interface. Win 7/8/10 compatible. Greater network security.

  • Rapid Parts Access. Long Term Production. Online Support.

Preconcentrator Feature Comparison

FEATURES
7200
Preconcentrator
7200CTS+
Cryogen-Free Preconcentrator
7200A+
Accelerated Preconcentrator
Design & Performance Specs
Compatible Boiling Point Range
-105°C to >230°C
-50°C to >300°C
-105°C to >230°C
Compatibility Range By Carbon Number
C2 to C14
C3 to C20
C2 to C14
Primary Trapping System
Packed Traps (Adsorbent, Glass Bead) or Open Silonite Column
Primary Multi-Capillary Column Trap
Packed Traps (Adsorbent, Glass Bead) or Open Silonite Column
Focusing Trap
Cryofocusing on Unpacked Silonite Tube
Focusing Multi-Capillary Column Trap
Cryofocusing on Unpacked Silonite Tube
Trap Operating Temp
-190 to 230°C
35 to +220°C
-190 to +230°C
Precision
±3% when sampling over 50 mls of sample
±3% when sampling over 20 mls of sample
±3% when sampling over 50 mls of sample
Detection Limits for EPA Method TO15 Compounds * MS Dependant
<0.05 PPBv *
0.02 PPBv *
<0.02 PPBv *
Coolant / Cooling System
Liquid Nitrogen, 20-60psig
Fan Cooled
Liquid Nitrogen, 20-60psig
Sample Introduction Volume
1cc to 1000cc
1cc to 400cc
1cc to 1000cc
Sample Pressure
10 - 50 psia
7-50 psi absolute
7-50 psi absolute
Complete Cycle Time
45 - 60 min
18 - 30 min
18 - 30 min
Dynamic Range
High PPT to PPM
Low PPT to PPM
Low PPT to PPM
Polar Compounds
Yes
Yes
Yes
Sulfur Compounds
Sub PPB using ECTD
Yes
Sub PPB using ECTD
Water Removal Efficiency
90 to 95%
99.99%
96 to 98%
Features & Capabilities
Accelerated Analysis
Microscale Purge & Trap
Extended Cold Trap Dehydration
Capillary Dry Purging
Automated Standards Addition
High CO2 Samples
Accu-Sample Technology
Digital Valve Isolation
Loop Injection Valve
Yes, Optional (0.5-2cc) 1cc Typical
Yes - Included (0.5-2cc) 1cc Typical
Yes - Included (0.5-2cc) 1cc Typical
Pressure / Vacuum Leak Test Prior to Operating
Built-In Sample Ports
4
4
4
Mass Flow Controllers
No
No
No
Compatibility
Primary Sampling Media
Canisters, Mini-Cans, Bottle-Vacs, Tedlar Bags (w/7032)
Canisters, Mini-Cans, Bottle-Vacs, Tedlar Bags
Canisters, Mini-Cans, Bottle-Vacs, Tedlar Bags
Helium Diffusion Samplers (HDS)
NO
Yes with SkyCan Rail Autosampler
Yes with SkyCan Rail Autosampler
Thermal Desorption Tubes
NO
Yes, with VAST System
NO
Autosampler Support
All 7650, 7016D, 7032A/D
All 7650, 7016D, 7032A/D
All 7650, 7016D, 7032A/D
Autosampler Connections
Up to 3
Up to 3
Up to 3
Methods
TO-14A, TO-15, LL-TO-15, HJ759, ASTM D5466, PV2120, OSHA 1021
TO-14A, TO-15, TO-15A, 327, LL-TO-15, HJ759 TO-17, ASTM D5466, PV2120, OSHA 1021
TO-14A, TO-15, TO-15A, 327, LL-TO-15, HJ759, ASTM D5466, PV2120, OSHA 1021
Operating Platform
SmartLab 2
SmartLab 2+
SmartLab 2+
Operating System
Windows 7, 10
Windows 10, 11
Windows 10, 11
Operating Specifications
Power
1200W
1200W
1200W
Voltages
120VAC / 60Hz, 230-240VAC / 50Hz
120VAC / 60Hz, 230-240VAC / 50Hz
120VAC / 60Hz, 230-240VAC / 50Hz
Operating Environment
10 - 30°C
10 - 28°C
10 - 30°C
Outputs
Isolated Contact Closures 2 TTL level optoisolated open-collector outputs as start signals for GC Start
Isolated Contact Closures 2 TTL level optoisolated open-collector outputs as start signals for GC Start
Isolated Contact Closures 2 TTL level optoisolated open-collector outputs as start signals for GC Start
Inputs
Accepts switch closures or open-collector inputs for GC
Accepts switch closures or open-collector inputs for GC
Accepts switch closures or open-collector inputs for GC
Gases
UHP Helium (10psig)(w/7650) Air (30psig)
UHP Helium or Nitrogen (10psig)(w/7650) Air/N2 (30psig)
UHP Helium or Nitrogen (10psig)(w/7650) Air/N2 (30psig)
Weighted Comparison & Special Features
Compound Compatibility Range
Good
All TO-15A Compounds plus Higher Boilers
All TO-15A Compounds plus Lower Boilers
Cost of Operation
Good
Best
Elimination of Cryogen and can use UHP Nitrogen instead of Helium
Very Good
Uses 30% Less LN2 than 7200, and can use UHP N2 instead of Helium
System Hygiene
Good
Accu-Sample Technology / Valve Isolation
Best
Unparalled Hygiene & Uptime - Virtually no trap carry-over
Very Good
Accu-Sample Technology / Valve Isolation Extended Tenax Trap Backflush Bakeout
Water Management / Humid Samples
Good
ECTD, MPT, Dry Purge
Best
Near complete elimination of water
Very Good
ECTD, MPT, Dry Purge+ SmartSplit Water Management (3X Reduction of Water to GCMS)
Cycle Time
Good
Very Good
18-30 minutes depending on sample size
Best
Under 25 minutes injection to injection for soil gas or low level ambient or indoor air.
Physical Properties
Weight
35-42 lbs (120VAC), 48-54 lbs (240V)
33-40 lbs (120VAC), 46-52 lbs (240V)
35-42 lbs (120VAC), 48-54 lbs (240V)
Dimensions
9.5” Wide, 18” Tall, 22.5” Deep
9.5” Wide, 18” Tall, 22.5” Deep
9.5” Wide, 18” Tall, 22.5” Deep

7100A End of Life Information Available Here.
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