Envision specs

Envision specs
FOR LAN D F I L L G A S S YS T E M O P E R AT I O N S
The Envision™ Gas Meter, from Elkins Earthworks, is an affordable,
rugged gas meter built for taking accurate gas measurements in the
extremes of the landfill environment. The Envision™ utilizes Infrared
technology to measure CH4 and CO2 and measures O2 by an internal
electrochemical cell. The Envision™ also houses five pressure sensors
so that the user can accurately measure standard and extremely low
pressures anywhere on the system.
Power in Flexibility
The Envision™ gas meter is driven by
any one of several Trimble® handheld
computers via Bluetooth® connection.
This allows the user to connect the
Envision™ to a sampling point and
continue to read the gas measurements
wirelessly up to 60 feet* and in some
cases further away. Utilizing software
built around the field technician’s normal workflow; data collected by
the Envision™ can be locked, reviewed and unlocked if necessary to
ensure accurate data is stored on the first visit. Once stored, all data is
immediately available in the convenient .csv file format.
* Actual distance may vary based on local factors.
• CH4 Methane
• CO2 Carbon Dioxide
• O2 Oxygen
• Low Range Pressures
• High Range Pressures
• G a s Te m p e r a t u r e
• GPS location
• Wireless Communication
• To u c h S c r e e n S i m p l i c i t y
• Universal .csv File Format
F O R M O R E I N F O R M AT I O N
C O N TA C T E L K I N S E A RT H W O R K S

Phone: (330) 725-7766
Email: sales@elkinsearthworks.com
Web: www.elkinsearthworks.com
Technical Specifications
Operation Range
Unit
Envision
Minimum
-4° F
Maximum
140° F
Comments
Heater unit option for low temperatures
Gas Sensors
Gas Sensors
CH4
CO2
O2
Range
0 - 100%
0 - 100%
0 - 35%
Range
0-5%
5-30%
30 - 100%
Resolution
T90
CH4
±0.3%
±1.0%
±<2.0%
0.01%
<30s
Comments
Infra-red cell
Infra-red cell
Electrochemical
Gas Sensor Accuracy
CO2
±0.3%
±1.0%
±<2.0%
0.01%
<30s
O2
±0.25%
±<1% (Max O2 = 35%)
±<1% (Max O2 = 35%)
0.01%
<13s
Pressure Sensors
Static
Accuracy
Resolution
T90
Differential
Accuracy
Resolution
T90
Available
Accuracy
Resolution
T90
(-)5 H2O to 5" H2O
0.1375
0.001
<1 ms
Range
(-)130" H2O to 130" H2O
+/- 2% of reading
0.01
<10 ms
0.1375
0.001
<1 ms
+/- 2% of reading
0.01
<10 ms
NA
NA
NA
+/- 2% of reading
0.01
<10 ms
Comments
According to sensor manufacture specs.
According to sensor manufacture specs.
Elkins Earthworks, LLC
North America Sales
Phone (330) 725-7766
865 W. Liberty Street, Suite 220
Medina, Ohio 44256
Fax (330) 725-7799
www.elkinsearthworks.com
www.sales@elkinsearthworks.com
Note: All statements about sensor accuracy and product tolerances are subject to change in the final
released unit. This technical specification sheet will be updated when final product is quoted.
Technical Specifications
Pump Specifications
" H2O
-138
Flow (cc/min)
260
Battery Specifications
Battery Life
Battery Construction
Charge Time
up to 500 full charge cycles
NiMH (no memory)
4 hours from complete
discharge
Battery Life (NiMH)
Temperature (°F)
Life (hours)
77
13.8
50
13.1
32
10.5
14
6.6
-4
2.6
WARRANTY EXCLUSIONS AND DISCLAIMER. Elkins Earthworks, LLC. does not guaranty or warrant the results obtained through use
of the Products. Accuracy and precision may be affected by:
1) improper or inadequate maintenance by customer;
2) Customer or third party supplied products, software, interfacing or supplies;
3) unauthorized modification;
4) improper use or operation outside of the specifications for the product;
5) misuse, abuse, negligence, accident;
6) or damage caused by accident, lightning or other electrical discharge, fresh or salt water immersion or spray, or exposure to environmental
conditions for which the Product is not intended;
7) unauthorized maintenance or repair; normal wear and tear on consumable parts (e.g., batteries).
Elkins Earthworks, LLC
North America Sales
865 W. Liberty Street, Suite 220
Phone (330) 725-7766
Fax (330) 725-7799
Medina, Ohio 44256
www.elkinsearthworks.com
www.sales@elkinsearthworks.com
Note: All statements about sensor accuracy and product tolerances are subject to change in the final released unit. This
technical specification sheet will be updated when final product is quoted.
2/20/2012
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