D12IR Infrared Gas Transmitter

ATI’s Series D12 Gas Transmitter line now includes a versatile Infrared system that can be configured for LEL or select toxic gases. The D12-IR utilizes a compact IR sensor in a corrosion resistant housing with sintered flame arrestor to meet hazardous area classification requirements, and is suitable for most plant environments. The D12-IR gas transmitter eliminates the poisoning problems inherent in catalytic bead sensors. While catalytic LEL sensors offer reliable service, the presence of silicon vapors, hydrogen sulfide, and halogenated hydrocarbons can quickly degrade sensor performance. Infrared sensing technology is not susceptible to these potential interferants, which means greater measurement stability and longer sensor life.

D12-IR transmitters can be factory calibrated for volumetric methane measurements in special applications. Ranges from 0-10% to 0-100% by volume are available. A separate sensor is also available for high percent level measurements of heavier hydrocarbons such a butane and propane.

The D12-IR transmitter can also be configured with Infrared sensor for carbon dioxide (CO2) or nitrous oxide (N2O) detection.  All sensor versions can operate in diffusion mode for ambient air or with a flow cell for pumped samples.

Because the IR sensor is always in an active state, the transmitter continuously monitors critical sensor functions and indicates any sensor problems, both on the display and via the analog output.

Transmitters are designed for operation in hazardous areas. The cast aluminum housing for the D12 transmitter is rated for Class 1, Division 1, Group B, C, D locations and is UL, FM, and CSA certified.

The transmitter is available with either HART™ or MODBUS™ protocol. The HART™ protocol supports the HART™ Universal and Common Practice Commands at 1200 baud using the Bell 202 FSK modem standard. The MODBUS™ protocol supports 9600 baud access to concentration and status information, and supports alarm setup and many other functions on either RS485 or RS232 (software selectable).

Features:

• LCD Graphics Display: Gas concentrations are displayed in large, easy to read numbers. The display also provides alarm indication and complete menus for setting up operating parameters. A backlight is standard for good visibility in low light.

• Internal Data Logger: Measured gas values are stored at user definable intervals and can be recalled when needed on the LCD display. Data can be downloaded using the MODBUS ™ interface.

• Non-Intrusive Operation: Operating functions such as calibration, alarm setup, alarm reset, data view, and setup options are all available using a magnetic tool. It is not necessary to open the enclosure when making adjustments.

• Password Protection: Program settings stored in the transmitter may be protected by a user selectable 4-digit password. Operators may still review all functions, but changes may only be made by authorized personnel.

• Modular Electronics: The D12 electronic assembly plugs easily into the power supply board in the base of the enclosure. Transmitters can be removed for wiring and quickly replaced in the event of a fault condition.

• Explosion Proof Enclosure: Transmitters are designed for operation in hazardous areas. The cast aluminum housing for the D12 transmitter is rated for Class 1, Division 1, Group B, C, D locations and is UL, FM, and CSA certified.

• Scalable 4-20 mA: The output range for a particular sensor is programmable within the range boundaries set in that sensor.

• Explosion-proof Sensor Design: Infrared sensing element is protected by stainless steel housing and flame arrestor

• Fail-safe Sensor Operation: Because the IR sensor is always in an active state, the transmitter continuously monitors critical sensor functions and indicates any sensor problems, both on the display and via the analog output.

• High Range Methane Measurement: D12-IR transmitters can be factory calibrated for volumetric methane measurements in special applications. Ranges from 0-10% to 0-100% by volume are available. A separate sensor is also available for high  percent level measurements of heavier hydrocarbons such a butane and propane.

• Sensor Calibration History: Each time a sensor is zeroed or spanned, the data is stored in memory. Calibration history can be recalled and sensor condition reviewed by operating personnel when necessary.

• Three Internal Alarm Relays: Optional relay outputs can be used for local alarm functions. All relays are programmable for setpoint, hysteresis, on-delay, off-delay, and other variables. Even a remote reset feature is provided for in the transmitter design.

• Analog Output Simulation: Transmitter analog output can be set to user definable values. This provides for complete loop testing without the need to apply gas to the sensor.

• Relay Output Simulation: Alarm relays may be activated on command to allow testing of local alarm devices. Any combination of relays may be activated based on operator selection. Output and alarms may also be inhibited for maintenance and calibration.

• Serial Communication Interface: The transmitter is available with either HART™ or MODBUS™ protocol. The HART™  protocol supports the HART™ Universal and Common Practice Commands at 1200 baud using the Bell 202 FSK modem standard. The MODBUS™ protocol supports 9600 baud access to concentration and status information, and supports alarm setup and many other functions on either RS485 or RS232 (software selectable). Comes with a register/tag database on a 3-1/2" diskette

Q45C2 2-Electrode Conductivity Monitor

Low-level conductivity measurements are essential for monitoring a variety of high purity water systems. The proper operation of deionizers, reverse osmosis membranes, ion exchange systems, and heat exchangers require constant monitoring to ensure high quality production.

ATI’s Model Q45C2 Conductivity Monitor provides the reliable and accurate low-level measurements required for such high purity water systems. Monitors provide large, easyto-read LCD displays with a second display line for indication of temperature or other operational information. And for those applications where results in resistivity units are preferred, Q45C2 monitors can be programmed to display readings in Meg-ohm units instead of microSiemens.

Monitors are available in a variety of configurations, including a loop-powered transmitter, an AC-powered analyzer with two user programmable alarm functions, and a battery operated unit, either with or without an internal data logger.

The monitor employs 2-electrode conductivity sensors with low cell constants to provide continuous measurements from 0-20 to 0-2,000 microSiemens. The 2-electrode sensors are specifically designed for use in ultra-pure water and nonfouling applications. The sensors are available in several mounting configurations including 316SS compression fittings or sanitary-style. These sensors may also be mounted submersion-style or in a hot-tap configuration.  For almost any high purity conductivity application, the Q45C2 system will provide the reliability, ease of use, and flexibility you are looking for.

Chlorine and Water Treatment

Drinking water. Everyone needs it, and most people do not spend a lot of time thinking about it.  It is taken for granted, that it will be plentiful, free from contaminants, and available around the clock. No one stops to think about how exactly that happens, they only notice if quits.

So, how does water become safe for our use? With the help of chlorine, of course.

 Chlorine does everything from reduces odors to eliminate the molds, bacterias and algaes that like to call water home. However, like everything, there are limits. Too much chlorine is a bad thing, and in order to keep tabs on it, chlorine detectors (chlorine analyzers) are needed. They are used both the drinking water and waste water industries to keep our water safe for consumption.The chlorine detector systems (chlorine analyzer system) come in two versions: a free chlorine monitor for drinking water and cooling water, and a combined chlorine monitor ideally suited for "chloraminated" drinking water. In the hands of professionals, this equipment makes water what everyone has come to expect: safe, clear, and clean.

Analytical Technology is a manufacturer of the Q45 residual chlorine monitor and the residual chlorine monitoring system and accessories.If you would like access to the manual or any available parts for the residual chlorine monitor and spare parts for water monitoring systems, visit the Analytical Technology website.

UW engineering building evacuated for ammonia leak

An ammonia gas leak forced police to evacuate the engineering building at the University of Wisconsin-Madison Tuesday morning.

UW-Madison's Police Dispatch received a 911 call at 11:20 a.m. about an ammonia gas leak contained in a room on the ninth floor of the Engineering Research Building, according to a news release issued by the police department Tuesday.

Officers evacuated the building and assisted the Madison Fire Department with safety and control.
Members of the fire department's hazardous incident team cleared the room of any remaining gas and reopened the building at 12:20 p.m.

UW-Madison safety officials were also on the scene to help. According to the release, no one was injured in the incident.

Source: http://www.jsonline.com/news/wisconsin/uw-engineering-building-evacuated-for-ammonia-leak-lo5m0ot-157294675.html

Suburban NY chlorine leak capped; 1 minor injury

Hazmat workers have capped a chlorine leak at a suburban New York water treatment plant.

A worker at the plant in Greenburgh escaped with minor injuries after the leak on Sunday.
The Yonkers Fire Department sent specially trained hazmat workers.
Yonkers Assistant Fire Chief John Flynn called it a "super dangerous operation." Flynn says that just a small amount of chlorine gas can be deadly if inhaled.
The Journal News (http://lohud.us/KmkvQH ) says a small amount of gas escaped outside the plant. However, readings showed there was no public threat and it quickly dissipated.

Source: http://online.wsj.com/article/AP8c549c521c2b475db07d728f1187a38a.html

'Incompatible chemicals' mixed at Ore. dairy processor produces chlorine gas, sickens 11

The accidental mixture of an acid and a caustic liquid at an Oregon dairy processor tank has sickened 11 people.

Portland Fire & Rescue spokesman Paul Corah says none of the 11 people's respiratory symptoms was believed to be life-threatening.
The chemicals were mixed at a tank at West Farm Foods. Firefighters evacuated the plant of its workers Wednesday morning.
Crews were working late Wednesday to keep the tank from overheating.
The reaction was set off when 450 gallons of acid were accidentally offloaded from a truck into 1,150 gallons of the caustic liquid.
The chemical reaction heated the tank and the temperature reached 120 degrees. Technicians say the tank could melt and the combined liquids could leak into the ground if the temperature reaches 150 degrees.

Source: http://www.therepublic.com/view/story/747e08fc417143099e14944317fb466a/OR--Chemical-Spill

Chlorine gas released

 SOUTHBRIDGE —  A chlorine gas scare in a building in the former American Optical complex triggered a hazmat response shortly after 8 yesterday morning.

Acting Fire Chief Mark W. DiFronzo said workers from three companies in a Southbridge Business Center building at 15 Wells St. were evacuated for several hours when an employee at the Schott North America mistakenly mixed hydrochloric acid and sodium hypochlorite, which produced a small amount of chlorine gas.

“When the employee noticed the reaction, he immediately stopped what he was doing, donned a respirator and evacuated employees from the building,” acting Chief DiFronzo said.

He said workers in the building implemented an emergency response plan, evacuating about 100 people from Schott and other businesses in the building; they were allowed to return after about four hours.

“There were no injuries and the public was never in any danger,” he said.

Edmund J. Coletta, spokesman for the state Department of Environmental Protection, said the incident started shortly after 7 a.m. when a Schott employee accidentally mixed three gallons of sodium hypochlorite mix with 100 gallons of hydrochloric acid, producing the release of chlorine gas.

Mr. Coletta said the employee then dumped the mixture into a 500-gallon holding tank and connected a water hose to the tank, creating a further chemical reaction.

He said hazardous materials teams turned off the water and turned off the heat plating equipment.

http://www.telegram.com/article/20120522/NEWS/105229857/1003/NEWS03