New electrochemical sensor measures hydrogen sulfide
The new DrägerSensor XS-2 electrochemical sensor measures hydrogen sulfide.
It features improved temperature and pressure compensation, reduced cross sensitivities, and a 2 year warranty.
The patented three-electrode design of the sensor provides excellent specificity to H2S and resistance to damage from overexposure to high H2S gas concentrations, the firm notes.
Its response to gases is fast and accurate, the firm says.
Source: Draeger Safety Inc., 101 Technology Drive, Pittsburgh, PA 15275-8383.
Underwater pipeline data communications system
UPDATE, an underwater pipeline data acquisition and transmission equipment system, helps reduce costs via aiding industry's approach to hydrotesting of newly laid underwater pipelines.
It's designed to monitor and transmit pressure and temperature data of an underwater pipeline during the hold period of a hydrotest while the marine support vessel is free to travel as far as 9.5 km from the testing site.
The system, which consists of underwater and surface components, measures and stores data that are transmitted through water to the surface assembly on a supporting marine vessel.
It also incorporates a fail-safe memory card from which information may be down-loaded, even if all battery life has expired.
It is standard industry practice to carry out a 24 hr pressure hold phase during an underwater pipeline hydrotesting operation, the company says.
With UPDATE, this same marine vessel can carry out other operations while serving as a data acquisition equipment support vessel throughout the entire hold period. This is where the cost-savings lie, the firm notes.
UPDATE is designed to operate in extreme environmental conditions and difficult acoustical terrain such as that found in the North Sea.
The acoustic equipment is multimodulation so that the modulation can be changed during operation to deal with variable conditions.
UPDATE can also transmit commands or data with any implemented modulation at a data rate of 20 bits/sec or greater, and it is built to retain data and continue to operate, even in the event of a power outage. Subsea components operate at depths of up to 2,000 m with ambient temperatures of 0-35° C. Seabed components are built to run in water currents of up to 5 knots.
Source: BJ Process & Pipeline Services Ltd., Badentoy Ave., Badentoy Park, Portlethen, Aberdeen, Scotland, AB12 4YB.
New natural gas fueled generator set produces 80 kw
The new high-speed natural gas fueled Ecostar generator set is capable of producing 80 kw for standby and backup power applications.
The ES080-42N-S genset operates at double the speed of conventional units to produce nearly twice the power, the company says.
The brushless synchronous generator used in this genset can be configured to deliver three phase voltages up to 480 v or single phase voltages up to 240 v.
Eight configurations enable the genset to serve 60 hz and 50 hz applications. The genset is available with a modem for full communications and diagnostics.
The configuration is selected by the customer and set at the factory before final testing.
Source: Ballard Power Systems Corp., 15001 Commerce Drive N., Dearborn, MI 48120.
Self-contained offshore grating system
The DX A40 grating system is a self-contained, totally portable system designed for offshore platforms and floating storage, production, and offloading units.
These powder actuated fastening systems enable installers to have the freedom to move around without cords, welding tanks, or leather protective gear.
The system is used to secure hot-dipped galvanized or composite grating up to 2 in. in height. The stainless steel fastener utilizes one size stud and appropriate disk to complete a stainless steel threaded fastening.
Weighing less than 5 lb, the entire system comes complete in a portable toolbox and can be easily carried. The system is simple enough for on-site personnel to be trained on the job thoroughly. This on-site training is OSHA-compliant and is offered at no charge to customers.
Installation takes three steps:
- Set the grating in position.
- Fasten a stud to the beam through the grating.
- Put on a grating disk that tightens down over the stud, clamping the grating in place.
The system also allows grating to be installed where access below it is required. Simply unscrew the disk and remove the grating. When it's time to reinstall, reposition the grating and reuse the same disk.
Source: Hilti Inc., 5400 S. 122nd E. Ave., Tulsa, OK 74146.
