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EST Environmental Technologies is proud to represent Hach / Sigma flowmeters, rain gauges and samplers for the Province of British Columbia, providing sales, service and support.

These rugged, dependable instruments provide users with many years of reliable field measurement with a multitude of options for integrated water quality monitoring.

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Hach Sc200 Flow Monitor

The sc200 level and flow monitor is designed to give highly accurate flow and depth measurement using ultrasonic sensor technology. It has a simple menu-driven system to guide the user through operation sequences, and provides reliable and cost effective flow monitoring. A large range of pre-programmed flow structures or user-entered table for custom built structures makes the sc200 an invaluable tool for nonintrusive monitoring of open channels.

	Built-in library of weir and flume types
	15 user-selectable flow measurement units
	Simple, menu-guided operation
	Additional displayed parameters
	Four relays and two 4?20 mA outputs

For more information about this product, please visit the following link >> Hach sc200

Hach Sigma Portable Liquid Samplers

Sampler Overview Guide

Introducing the new Hach AS950 Sampler Controller! New Hach Sampler for 2015!

AS950 Portable Sampler....................................AS950 Sampler Controller

Portable Sampling at its best! The Portable AS950

The AS950 Portable Sampler simplifies sampling with a large, full-color display for intuitive, single-screen programming, USB upload and download capabilities and the ability to copy programs sampler to sampler to save time on tedious programing, and an error alert and status screen to eliminate uncertainty and simplify troubleshooting. Weighing only 28 pounds (12.7 kg), the AS950 Portable Sampler is designed for accuracy and convenience.

Easiest and Most Intuitive Operation
Most Convenient Data Transfer and Programming Available
Confidence in Your Sampling Process
Field Convertible for Composite or Discrete Sampling
Easy Maintenance at Low Cost

More information from Hach Website: << AS950 Portable Samplers>>

Hach AS950 Refrigerated Liquid Sampler

AS950 Video References (Video Guides)

AS950 Refrigerated Vinyl.....................................AS950 All Weather Refrigerated Sampler (AWRS)

Hach AS950 Refrigerated Liquid Sampler

AS950 Refrigerated Samplers (Vinyl - Black)

The AS950 Refrigerated Sampler simplifies sampling with a large, full-color display for intuitive, single-screen programming, USB upload and download capabilities and the ability to copy programs sampler to sampler to save time on tedious programing, and an error alert and status screen to eliminate uncertainty and simplify troubleshooting. The custom-designed air-sensing thermostat controls temperature in accordance with USEPA and international guidelines, preserving samples regardless of outside temperatures and conditions.

Easiest and Most Intuitive Operation
Most Convenient Data Transfer and Programming Available
Confidence in Your Sampling Process
Resists Corrosion
Accurate and Consistent Sample Preservations

More information from Hach Website: << AS950 Refrigerated Samplers>>

Sampling has never been this easy. AS950 All Weather Refrigerated Sampler (AWRS)

The AS950 All-Weather Refrigerated Sampler simplifies sampling with a large, full-color display for intuitive, single-screen programming, USB upload and download capabilities and the ability to copy programs sampler to sampler to save time on tedious programing, and an error alert and status screen to eliminate uncertainty and simplify troubleshooting. The custom-designed air-sensing thermostat controls temperature in accordance with USEPA and international guidelines, preserving samples regardless of outside temperatures and conditions.

Easiest and Most Intuitive Operation
Most Convenient Data Transfer and Programming Available
Confidence in Your Sampling Process
Resists Corrosion
Accurate and Consistent Sample Preservations

More information from Hach Website: << AS950 AWRS Refrigerated Samplers>>

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Hach Sigma SD900 sampler series (now discontinued and replaced with the Hach AS950 series)

Click Here or the Images below to watch a video of: Hach Sigma Video Overview Guide of Sigma Samplers

SD900 Portable Sampler (New)

The Sigma SD900 Portable Sampler sets up easily and quickly in the field. Reduced maintenance and reliable results are assured.

Intuitive, User Friendly Keypad for Easy Set Up
Simplified Sampling and Reduced Maintenance
Reliable Peristaltic Pump Technology
Maximize Data with Minimal Effort
Wide Variety of Applications
Field Convertible for Compact or Discrete Sampling
Durable, Heavy-Duty Construction
Tolerates Harsh Environments
Advance Liquid Detect Techniques

Ideal For:

NPDES Stormwater Compliance
Stormwater Runoff Monitoring
Pretreatment Compliance
CSO Studies and Monitoring
Industrial Wastewater Discharge

Note: Retrofit Kits available for existing Sigma 900 Customers

The simiplified keypad with intuitive icons and scrolling menu on the Sigma SD900 Indoor Refrigerated Sampler controller assures easy setup. Program setup, for first time users, is typically less than 2 minutes. Large keys accommodate gloved hands. Color coded power/stop buttons are easy to identify. The large, 5-line, transflective LED backlit display stays readable in bright or subdued lighting.

Housing: high impact injection molded ABS, submersible, watertight, dust tight, corrosion- and ice-resistant, NEMA 4X, 6, IP67
Certification: CE
128 x 64 dot matrix backlit LCD, easily visible in direct sunlight
Ability to store up to 255 entries in Sample History
Access code protection prevents tampering of program and system settings

The SD900 controller is now available in retrofit kits for the legacy Sigma 900 refrigerated samplers and portable samplers, to convert older systems to the new controller.

Click Image for Specifications

Sigma SD900

Sigma SD900 Refrigerated Samplers

Standard SD900 Refrigerated Sampler (Black Cabinet)

The Sigma SD900 Indoor Refrigerated Sampler is easy to set up and program, delivering reliable results and reduced maintenance. It is ideal for WWTP Process Control, NPDES Compliance, Pretreatment Compliance, Storm Water Runoff Monitoring, CSO (combined s

Single or multiple bottles
Highest sample integrity for data you can count on
Simple to understand, efficient to use
Refrigerator maintains 4°C
Simple to Understand, Efficient to Use

Sigma SD900 (All Weather Refrigerated Sampler / AWRS)

Unsurpassed Corrosion Resistance
With American Sigma´s All-Weather Refrigerated Sampler, spending time and money to maintain your sampler is a thing of the past. We designed this unit to last longer than any other sampler available. First, we put the compressor on top to avoid hydrogen sulfide and other corrosive heavier-than-air gases, which attack conventional refrigerated samplers with floor-level compressors. Then, we equipped the sampler with a tough, chemically resistant coating to better protect refrigeration lines against moisture and corrosive gases. Finally, we used stainless steel hardware, sealed electrical connections and weather resistant cables to complete its corrosion-resistant design.

Mother Nature Meets Her Match
Customers quickly learn that the name All-Weather is no exaggeration. This sampler is designed to operate anywhere - indoors or out - without a secondary enclosure. Completely self-contained, the All-Weather is rated for operation in temperatures from -40° to 120°F. The cabinet is linear low density polyethylene with rounded, moisture-shedding, UV-resistant surfaces. Its sidewall ventilation system allows positioning against a wall, and its sturdy locks prevent tampering. Leveling feet and anchor brackets ensure proper, secure installation. For operation in sub-zero temperatures see Model 3540SDRH with controller compartment heater.

SD900 Controller porgrams in minutes
Spring loaded pump rollers deliver 20x pump tubing over other samplers
Insulated cabinet lid protects pump and controller from the elements and extreme temperatures
Refrigerator Maintains 4°C.
Built to last with rugged construction and a sealed controller

Shown above is the standard Sigma SD900 Refrigerated Sampler

Shown above is the Sigma SD900 All Weather Refrigerated Sampler

The standard SD900 refrigerated is also available in stainless steel finish.

900 Series Portable Samplers

Weighing as little as 28 lbs., our portable samplers feature a compact or standard size base and flip-up handles for easy carrying. The compact base model is specifically designed for an 18" manhole. Its rugged modled ABS exterior withstands the toughest use and harshest environments, and its sealed controller withstands humidity and corrosion. The high sample integrity of these easy-to-use samplers yields dependable data every time.

Accuracy: Highly accurate measurements Keep your system in compliance at all times
Simplicity: The easiest to operate equipment saves you valuable time and effort.
Flexibility: Extensive Product options and feature accommodate your specific needs.
Reliability: Robust products with minimal downtime and outstanding support.
Economy : Affordably priced products give you the best value for your money,.

Available with Sigma 900 or 900 MAX Controllers.

Sigma 900 Controller

For applications requiring sampling alone, the Sigma 900 provides simple operation and maximum reliability.

The Sigma 900 Controller Simplifies Sampling:
Sampling doesn´t need to be difficult. With the 900 controller, you can maintain total EPA conformance. The self-prompting format of the 900 - with its 24-character alphanumeric display - is as easy to use as a calculator. Suitable for NPDES, Stormwater or Combined Sewer Overflow applications, the 900 can be configured for ten composite or multiple bottle setups. You can easily enter and store five separate sampling programs into the controller memory. And, the 900 is equipped with a vertically mounted pump that isolates electronics from fluid spills. This reliable sampler is simple to understand, efficient to use and tough enough to last - everything you need for basic sampling.

Sigma 900 MAX Controller:

Should you be required to sample for regulatory compliance, monitor combined sewer overflows or storm water outfalls, or conduct biomonitoring research, look no further than the advanced technology of the Sigma 900 MAX Controller.

The Sigma 900 MAX Monitors & Manages:

For a full-fledged water management tool, nothing compares to the Sigma 900 MAX Controller . This highly advanced sampler features a large 8-line x 40-character backlit display that allows you to quickly select information from an easy menu-type programming format. And with 12 datalogging channels, the Sigma 900 MAX can be much more than a sampler.

You can also log up to seven external analog signals in the Sigma 900 MAX All Weather Sampler and up to three in the Sigma 900 MAX Portable and Refrigerated Samplers . The Sigma 900 MAX records as many as 116,000 readings on one or any combination of the 12 channels. RAM memory is automatically allocated as necessary during operation - either as "wrap-around" (drops off the oldest data) or "slate" (stops storing new data). Flash memory allows you to install software enhancements (available on the Internet) easily, without returning the sampler to the factory, so you will always have the latest monitoring technology.

Unique Constant Time/Variable Volume Sampling:

The Sigma 900 MAX´s unique Constant Time/Variable Volume feature varies sample size in proportion to flow rate, capturing flow-weighted samples on the first try. This new patented* method closely simulates manual grab sampling. Conventional samplers vary the intervals between samples in relation to the flow rate, while sample sizes remain constant. During low flow periods, sample intervals can increase dramatically, producing insufficient sample volumes for proper analysis. High flows cause sample containers to fill before the desired sample period ends. These conditions make capturing short-lived illicit discharges or significant storm events difficult. The Sigma 900 MAX Constant Time/Variable Volume feature takes regularly timed samples, adjusting the sample size proportionally to the flow rate. The sample volume increases and decreases with the flow, ensuring that proportional samples are taken at even intervals throughout the sampling period.

* Constant Time, Variable Volume patent #5587926, "Refrigerated fluid sampling apparatus and method with variable volume sampling system.

Data Management Software Makes Life Easy:

Once the Sigma 900 MAX collects your data, its powerful and user-friendly software makes it easy to analyze the data and produce presentation-quality reports.

Our Data Management software´s reporting capability includes maximums, minimums, totals and averages for a day, a month or any period you choose.

Three Ways to Download Data with the Sigma 900 MAX:

The advanced two-way communications of the Sigma 900 MAX seamlessly integrate with your existing communications. You can download your data three ways:

Sampler to DTU to PC: Compared to laptops, American Sigma´s palm-sized Data Transfer Unit is a much faster, easier and more economical way to get data from field to office. The waterproof DTU is so simple, it requires no training or PC experience to use. It can hold data from up to 20 samplers.
Sampler to Modem to PC: Our built-in modem transmits your data via cellular phone or telephone lines right to your office. American Sigma´s InSight?Gold Data Management and Analysis Software can automatically call your sampler at a predetermined time to retrieve data, or data may be retrieved on demand. Additionally, the Sigma 900 MAX can send out alarm conditions to up to three pagers or a central monitoring computer.
Sampler to PC: Sigma´s Insight?Gold Data Management and Analysis Software allows you to link your Sigma 900 MAX directly to your PC via the standard built-in RS-232 serial port.

Sigma Open-Channel Flow Meters

Sigma Flow/Level Measurement: Overview

Detect infiltration and inflow, and limit overflows that can cause health risks and environmental damage. Sigma flow meters are known for accuracy and efficiency, to save you both time and expense.

View On-Line Sigma Flowmeter Guide Click Here >> Open-Channel Flow Meter Guide

910 Area Velocity Flow Meter

For short term, single channel collection system monitoring
Measures average velocity directly, without the need for flow profiling
Can log level and velocity data for more than 60 days without changing a battery

Click Image for Specifications

911 Intrinsically Safe Area Velocity Flow Meter

Intrinsically Safe Flow Meter for use in hazardous or potentially hazardous environments.
For short term, single channel collection system monitoring
Measures average velocity directly, without the need for flow profiling

Click Image for Specifications

920 Area Velocity Flow Meter

For dual channel or redundant collection system flow monitoring
Measures average velocity directly, without the need for flow profiling
Can log level and velocity data for more than 90 days without needing to change batteries

930 Area Velocity Flow Meter

Long Term flow meter that supports three interchangeable sensors, increased data storage and offers optional interfaces with samplers and modem capabilities
Measures average velocity directly, without the need for flow profiling
Can log level and velocity data for 1 year without needing to change batteries

Click Image for Specifications

940 Intrinsically Safe Area Velocity Flow Meter

Intrinsically Safe Flow Meter for use in hazardous or potentially hazardous environments.
For dual channel or redundant collection system flow monitoring
Measures average velocity directly, without the need for flow profiling
Can log level and velocity data for 1 year without needing to change batteries

950 Area Velocity Flow Meter

The Sigma 950 and 950 AV Series Flow and Water Quality Meter provide portable and/or permanent single-channel monitoring, process control interface, and a digital display.

950 Optiflow Flow Meter

The Sigma 950 and 950 AV Series Flow and Water Quality Meter provide portable and/or permanent single-channel monitoring plus water quality testing, process control interface, and a digital display.
The Sigma 950 and 950 AV Optiflow models offer maximum flexibility for multiple applications. Up to three different level sensor technologies and velocity are available in one meter.

GLI U53 Flow Monitor - Ultrasonic Level

The Model U53 level and flow monitor is designed to give highly accurate flow and depth measurement using ultrasonic sensor technology. It has a simple menu-driven system to guide the user through operation sequences, and provides reliable and cost effective flow monitoring. A large range of pre-programmed flow structures or user-entered table for custom built structures makes the U53 an invaluable tool for nonintrusive monitoring of open channels.

	Built-in library of weir and flume types
	15 user-selectable flow measurement units
	Simple, menu-guided operation
	Additional displayed parameters
	Four relays and two 4?20 mA outputs

Click Image for Specifications

Raingauges

Automatic Rain Gauge with Rain Logger

Built to National Weather Service stanards, the Rain Gauge accurately measures rainfall in 0.01" increments. This versatile tool can be used for stand-alone or long-term rainfall recording, as well as for portable use in storm water runoff monitoring. The rain gauge also works in conjunction with the Sigma Rain Logger, which stores weeks of data, or with a Sigma sampler or flow meter.

Click Image for Specifications

Insight Data Management Software

Insight® software provides easy-to-use, automated data collection and management for multiple applications. It can communicate, download and analyze data from most Hach Sigma instruments. Features include; "One Button" data retrieval, real time view of logger status, multiple sensor support, program templates, remote programming, modem scheduling, and alarms.

System Requirements:

Pentium PC with 133 MHz or higher processor
Windows 2000, XP operating systems
64 Megabytes of ram
Hard Drive with 100MB or more free space
Mouse or other pointing device
9 pin serial port (or 25-pin serial port with 9-pin adapter) or modem
VGA Graphics display with 800x600 or higher resolution, 256 colors
Color printer for output of reports and graphs is recommended

900 Refrigerated Liquid Samplers

These fixed-site samplers feature a custom-designed air-sensing thermostat and employ a high-efficiency compressor/condenser assembly, wraparound evaporator, and rigid foam insulation to maintain an optimum temperature of 4*C. The unit can be positioned against a wall or inside a sampler enclosure, due to the flexibility afforded by its front entilation system forced-air blower. These extremely accurate and durable samplers are equipped to withstand humidity and corrosion. Available with either the standard 900 Controller or 900 MAX Controller

Click Image for Specifications

900 All Weather Refrigerated Samplers (AWRS)

Refrigerated Sampler is unsurpassed when it comes to high integrity and worry-free sampling. Featuring completely self-contained fiberglass construction, it opeates in temperatures ranging from -40* to 49*C). Samples are preserved at a constant 4*C with an advanced microprocessor control system. The key to the units longer life is the design. The compressor is placed on top of the unit in order to avoid floo-level corrosive gases. Its UV-resistant surface, side-wall ventilation, sturdy door locks, and stainless steel anchoring rails allow you to place it anywhere.

Click Image for Specifications

Sigma 900 Controller

For applications requiring sampling alone, the Sigma 900 provides simple operation and maximum reliability.

Sigma 900 MAX Controller:

The Sigma 900 MAX Monitors & Manages:

Unique Constant Time/Variable Volume Sampling:

* Constant Time, Variable Volume patent #5587926, "Refrigerated fluid sampling apparatus and method with variable volume sampling system.

Data Management Software Makes Life Easy:

Once the Sigma 900 MAX collects your data, its powerful and user-friendly software makes it easy to analyze the data and produce presentation-quality reports.

Our Data Management software´s reporting capability includes maximums, minimums, totals and averages for a day, a month or any period you choose.

Three Ways to Download Data with the Sigma 900 MAX:

The advanced two-way communications of the Sigma 900 MAX seamlessly integrate with your existing communications. You can download your data three ways:

Sampler to DTU to PC: Compared to laptops, American Sigma´s palm-sized Data Transfer Unit is a much faster, easier and more economical way to get data from field to office. The waterproof DTU is so simple, it requires no training or PC experience to use. It can hold data from up to 20 samplers.
Sampler to Modem to PC: Our built-in modem transmits your data via cellular phone or telephone lines right to your office. American Sigma´s InSight?Gold Data Management and Analysis Software can automatically call your sampler at a predetermined time to retrieve data, or data may be retrieved on demand. Additionally, the Sigma 900 MAX can send out alarm conditions to up to three pagers or a central monitoring computer.
Sampler to PC: Sigma´s Insight?Gold Data Management and Analysis Software allows you to link your Sigma 900 MAX directly to your PC via the standard built-in RS-232 serial port.

Click Image for Specifications

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PRODUCTS - Hach / American Sigma Flowmeters

McCrometer / Hach / American Sigma Flowmeters

Portable Sampling at its best! The Portable AS950

AS950 Video References (Video Guides)

AS950 Refrigerated Samplers (Vinyl - Black)

Sampling has never been this easy. AS950 All Weather Refrigerated Sampler (AWRS)