Confined Space Entry – is your gas detector right for the job?
Posted by: surveyexpress on: June 9, 2011
The Crowcon Gas-Pro has been designed for work in confined space
Working in confined spaces is difficult at the best of times. Operators often have to wear full PPE (personal protective equipment), are usually harnessed and may be carrying tools and equipment.
The last thing a worker in this arduous environment needs to worry about is his or her gas detector. It should be designed specifically for confined space entry (CSE) applications.
Crowcon has undertaken extensive market research among users and fleet managers. This has identified five essential features:
• Simple to use
• Bright, easy to read display
• Long battery life (for at least one full shift, and preferably two)
• Robust design and construction
• Reliable detection (unreliable detectors can quickly holt a project)
With this feedback in mind, Crowcon went back to the drawing board. The result is the newly launched Crowcon Gas-Pro.
Specific CSE features of the new Crowcon Gas-Pro include:
Compact size
The Crowcon Gas-Pro has been kept to a minimum size and it is designed so as not to get in the way of other PPE devices.
Top Mounted Display
Unlike other gas detection instrument, Crowcon has developed the Gas-Pro with a bright, top-mount display.
+ve Safety
Unique to the Crowcon Gas-Pro, +ve Safety provides tri-colour status indication, giving quick and effective monitoring of gas test, calibration, over range and recent alarm notification.
Multiple Gas Sensors
Multiple gas sensors for up to five potentially hazardous gases from an extremely wide range of sensors and configurations.
Enhanced Construction
The Crowcon Gas-Pro is extremely rugged and has IP65 &IP67 ingress protection.
Internal Pump
An internal pump means that pre-entry testing can be done quickly and easily.
The Crowcon Gas-Pro is a new category of product designed for just one purpose – ensuring gas safety in confined spaces. Free from worries about what risks might come with compromise, personnel entering these spaces will be more focussed on their core activities, safe in the knowledge that their gas detector is focused on its core activity.
Click for more information on the Crowcon Gas-Pro
Points to consider when purchasing a cross line laser
Posted by: surveyexpress on: March 25, 2011
When purchasing a line laser, consider quality of the laser beam, the accuracy and how wide the beam is projected.
Beam Quality
The quality of the laser beam should play an important role in deciding which line laser to purchase. A high quality line laser will provide a crisp beam throughout the line. Whilst a cheap alternative will provide a thicker, more defused laser line.
The Leica Lino L2+ incorporates a very high quality laser beam which projects the best laser line of its class. This award winning laser has been designed to project a very is crisp line throughout the beams divergence.
Fan of the Beam
The laser line is projected from the laser diode and out through the lens. The angle of the laser line or fan is determined by position of the diodes and quality of the lens.
Most line lasers can only project a beam less than 120 degrees with the lens defusing the beam. To improve the beams angle, manufactures have adjusted the diodes’ position creating a large lens closer to the front of the instrument. This improves the fan of the laser line, but will not protect the lens against damage.
Leica Geosystems redesigned the Leica Lino L2+ body to allow the diodes to project a wide 180 degree laser line. The position of the optics is away from the front of the instrument to protect against damage.
Leica are renown for their quality, so it should not be any surprise to see high quality optics integrated into the design of the Leica Lino L2+. This reduces diffusion of the laser line providing a very crisp line.
Accuracy of the Laser
The accuracy will determine how level the laser projects the beam and how level any item that is set out from the laser line.
The Leica Lino L2+ provides the highest accuracy of any line laser both in horizontal and vertical plans. The Leica Power Range Technology provides excellent line visibility even at larger distances.
The Leica Lino L2+ automatically compensates for minor alignment errors in the range of +/-4°. During this process the instrument is aligned to mm accuracy. If the automatic self-leveling range is exceeded, the laser automatically signals that the instrument is out of levelling range. Expensive measuring errors are prevented.
An example of use
When setting out tiles for a wall, it will be very noticeable of the tilts are not truly horizontal or vertical.
A line laser will set-out the initial horizontal and vertical line, allowing the contractor to lay the first tile with subsequent tiles following the laser lines.
For larger areas the contractor will move the instrument further away to project a wider laser line.
If the beam of the laser is of a low quality, the laser line on the wall will become defused. Likewise the accuracy of the laser will further compound the problem, projecting a beam that is not truly horizontal.
The Leica Lino L2+ features a very high quality laser beam, projecting a crisp line through the 180 degree fan. This allows the laser to project a wider beam at close range, ideal for small projects. The very high accuracy of the beam ensures that the laser is truly horizontal. If the laser is moved back, the combination of beam, optics and accuracy will not hinder the contactor.
For more information – Leica Lino L2+ Cross Line Laser
For more information – Range of Cross Line Laser
Smart Horizontal Mode
Posted by: surveyexpress on: March 25, 2011
When undertaking measuring tasks, there will be occasions when you may require the horizontal distance, but the line of sight may be blocked.
Instead of measuring sections and adding them together, the brains at Leica Geosystem have introduced the tilt function into the Leica DISTO range. Not only will the instrument measure the angle of tilt, but calculate the true horizontal distance.
Therefore by simply utilising the smart measuring mode, the Leica DISTO will combine the distance and tilt measurement functions to calculate the true horizontal distance.
Smart! Well it gets better.
Leica have also incorporated a number of other calculations into the smart horizontal mode. By pressing the button for longer, the indirect height to the laser dot, angle of the instrument and distance to the laser dot will be displayed.
With the Pythagoras function, the instrument requires line of sight to both the top and bottom of the structure. By utilising the Smart Horizontal Mode when the instrument is placed on a tripod, the user can measure the height to the top and measure the height of the instrument from the ground.
Below is a list of instrument which features the smart horizontal mode:
Leica DISTO D3a
Leica DISTO D3a BT
Leica DISTO D5
Leica DISTO D8
For more information on the Leica DISTO range, visit our website
Tough Leica DISTO
Posted by: surveyexpress on: March 25, 2011
Well in short, very.
With the introduction of the Leica DISTO DXT model, there is no tougher instrument. Built to with stand any knocks and falls commonly encountered on a building or construction site.
Although the standard range of instruments have been designed with a strong magnesium housing encasing the laser and receive lens, they are precision instruments so will not be too happy if dropped into water.
So Leica Geosystems have incorporated several new features into the Leica DISTO DXT design.
The impact-resistant housing has been strengthened with special fibreglass-reinforced plastic bracing.
Passes drop tests from 2m height thanks to the thick rubber housing on the outside which protects the module against possible damage.
A special rubber sealing strip protects all components – even the battery compartment.
The Leica DISTO DXT is the only laser measuring instrument to pass rigorous tests according to IP 65. That means it can be jet washed to remove dirt without affecting the internal components and submerged in water.
The internal components have been design with abuse in mind. Less parts to go wrong and more importantly components that works better under arduous conditions.
OK, the Leica DISTO DXT will not be able to measure complicated architectural structures like the Leica DISTO D3a or Leica DISTO D5 models. But if you work on a building site or require a heavy duty instrument, then this is the instrument for you.
Why purchase a Cable Detection EZiCAT?
Posted by: surveyexpress on: March 25, 2011
Cable Detection EZiSYSTEM range of cable avoidance tools (CAT) are becoming the preferred cable avoidance system with most civil engineering contractors. But why purchase the Cable Detection EZiCAT?
Most cable avoidance tools operate through an analogue system which requires complicate electronics and numerous switches to be set correctly to detect buried services.
Cable Detection uses state-of-the-art digital signal processing technology (DSP), removing switches, designed to be user friendly and more importantly, provides the maximum protection to the operator.
Better Operation
When detecting buried cables with standard cable avoidance locators, the instruments will only detect the specific search mode (Power, Radio or Genny modes) engaged by the operator.
That is to say, the operator will need to turn a switch to engage the search mode and rotate the Sensitivity Control for maximum sensitivity. In some cases, the operator will forget to setup the CAT correctly or the switches are damaged.
With the Cable Detection EZiCAT system, the instrument automatically starts in Power mode and with maximum sensitivity. This avoids human error and with the self test function, the cable locator can be tested in the field before use.
More Standard Features
Cable Detection have incorporated a range of advanced features into their new i-series cable avoidance tools. All instruments in their range will be equipped with the following.
Auto Mode
Automatically locates power or radio signals, helping to confirm the presence of services in one search.
Hazard Zone
The latest generation of cable avoidance tools from Cable Detection incorporate the ‘Hazard Zone’ feature which warns the operator of shallow power cables close to the surface.
Pinpoint Assist
Pinpoint assist is a useful addition to the new range of cable avoidance tools from Cable Detection. When searching for services, the highest peak reading will be maintained for a period of time allowing the operator to quickly and accurately pinpoint the service position.
Built-In Self Test
The Cable Detection EZiCAT system allows the operator to self test the functions of the instrument before use. The instrument will perform a hardware and software test, indicating if the instrument is operating correctly or not.
For more information -
Cable Detection EZiCAT i500
Leica Lino L2+ Cross Line Laser
Posted by: surveyexpress on: March 14, 2011
- Outstanding visibility and extra long laser lines – extended laser fan-angle (
- Quick and effortless set up – self-leveling within a range of ± 4°
- Perfect horizontal and vertical leveling – exact 90° angle
- Working in bright conditions – pulse function for detecting the laser lines with a receiver
- Alignment at any angle – lock function to switch off the self-leveling function
- Ready for many different leveling and alignment tasks – clever scope of delivery in a practical hard-case
Extra long laser lines
The improved emergence angle ensures outstanding visibility and extension of the laser line for perfect levelling and alignment at long distances. It is possible, e.g., to transfer reference points from one wall to the next. Leave your spirit level and string in your tool box.
Very high accuracy
With projection and levelling accuracy of ±1mm, the Leica Lino L2+ is one of the most precise instruments in its class.
Very easy to use
With only one button operation, the Leica Lino L2+ is quick and easy to operate. Setting the instrument up is child’s play, with the magnetic multifunction adapter supplied.
Excellent visibility
The Leica Lino L2+ is equipped with Leica’s Power Range Technology to achieve an excellent visible laser line at greater distances.
Working in bright conditions
The pulse function is not just an energy-saving mode: it also allows you to locate the laser lines using a laser detector, even in very bright lighting conditions. When utilised with a detector eye the range can be increased to 30m inside or out.
For more information – Leica Lino L2+ Cross Line Laser
For more information – Range of Cross Line Laser
Why purchase a Cable Detection EZiCAT?
Posted by: surveyexpress on: March 14, 2011
Cable Detection EZiSYSTEM range of cable avoidance tools (CAT) are becoming the preferred cable avoidance system with most civil engineering contractors. But why purchase the Cable Detection EZiCAT?
Most cable avoidance tools operate through an analogue system which requires complicate electronics and numerous switches to be set correctly to detect buried services.
Cable Detection uses state-of-the-art digital signal processing technology (DSP), removing switches, designed to be user friendly and more importantly, provides the maximum protection to the operator.
Better Operation
When detecting buried cables with standard cable avoidance locators, the instruments will only detect the specific search mode (Power, Radio or Genny modes) engaged by the operator.
That is to say, the operator will need to turn a switch to engage the search mode and rotate the Sensitivity Control for maximum sensitivity. In some cases, the operator will forget to setup the CAT correctly or the switches are damaged.
With the Cable Detection EZiCAT system, the instrument automatically starts in Power mode and with maximum sensitivity. This avoids human error and with the self test function, the cable locator can be tested in the field before use.
More Standard Features
Cable Detection have incorporated a range of advanced features into their new i-series cable avoidance tools. All instruments in their range will be equipped with the following.
Auto Mode
Automatically locates power or radio signals, helping to confirm the presence of services in one search.
Hazard Zone
The latest generation of cable avoidance tools from Cable Detection incorporate the ‘Hazard Zone’ feature which warns the operator of shallow power cables close to the surface.
Pinpoint Assist
Pinpoint assist is a useful addition to the new range of cable avoidance tools from Cable Detection. When searching for services, the highest peak reading will be maintained for a period of time allowing the operator to quickly and accurately pinpoint the service position.
Built-In Self Test
The Cable Detection EZiCAT system allows the operator to self test the functions of the instrument before use. The instrument will perform a hardware and software test, indicating if the instrument is operating correctly or not.
For more information –
Cable Detection EZiCAT i500
BW Gas Alert Micro Clip XT Gas Monitor
Posted by: surveyexpress on: March 14, 2011
The BW Gas Alert Micro Clip XT is a multi-gas monitor (H2S, CO, Oxygen and flammable), designed to enhance site safety and provide an easy to use multi-gas solution.
Its slim and compact design means that BW Gas Alert Micro Clip XT is as easy and comfortable to wear, as it is to use; the device features a slim and lightweight design that provides a non-intrusive monitoring solutions to workers in a wide range of applications.
BW Gas Alert Micro Clip XT also delivers excellent value for money and provides aspects like continuous LCD real-time gas concentrations, visual, audible and vibration alarms, force bump test / force calibration and auto Oxygen sensor calibration on start up.
BW Gas Alert Micro Clip XT is optimised to enhanced on-site safety through aspects like IntelliFlash™, which provides a visual indication of current operation to both the user and supervisor.
The device also features “force bump test” and “force calibration” functionality, helping to ensure that BW Gas Alert Micro Clip XT is always fully maintained and
ready to detect gas.
The GasAlertMicroClip XT is fully compatible with BW’s MicroDock II automatic test and calibration system.
For more information – BW Gas Alert Micro Clip XT
For more information – Range of Gas Monitors
Cable Detection i-Series
Posted by: surveyexpress on: March 14, 2011
The EZiCAT has been designed with the main emphasis on safety, our aim being to reduce on-site strike incidents by using the latest electronic technology to significantly reduce the human error element.
How does EZiSYSTEM locate?
The EZiCAT i500 and i550 locate buried conductive services by receiving electromagnetic signals which radiate from them.
The EZiCAT’s intelligent software interprets the signal data and provides the operator with an audible and visual response to the location and direction of buried utilities. The operator can mark the ground or use a GIS mapping device* to note the location.
Incorpoated into the design are a range of standard features that make the new Cable Detection i-Series the best cable avoidance system.
Auto Mode
Automatically locates power or radio signals, helping to confirm the presence of services upon initial site occupation making cable detection easier and safer!
Digital signal processing technology (DSP)
State-of-the-art for precision service locating.
Hazard Zone
The EZiCAT i-Series indicates the presence of a shallow buried service in power, 8 and 33 kHz modes, (within approximately 30cm) alerting users to the increased risk.
Pinpoint Assist
Maintains the highest peak reading obtained on the signal strength indicator for a period of time, allowing the operatior to quickly and accurately pinpoint the service position.
Enhanced Sonde Detection
EZiCAT i-Series feature numeric signal strength readout, specifically designed for easy Sonde location. The highest number displayed indicates the exact position of the Sonde beneath the ground.
Depth Indication
The EZiCAT i550 features utility depth indication, when used in conjunction with the EZiTRACE or Sonde in8 or 33 kHz modes. Operators can determine the depth of the buried utility, providing a clear advantage when conducting ground surveys.
Bluetooth Connectivity
Both the EZiCAT i-series locators can be purchased with the added benefit of Bluetooth wireless connectivity. It will allow the EZiCAT to integrate seamlessly with mobile mapping technology to log survey data.
In-built test function
The EZiCAT was the first cable avoidance locator to allow operators to test the hardware and software functionality before use.
Service Due Indicator
Supporting customer planned maintenance schedules or quality systems by displaying a wrench icon after 12 months.
For more information –
Cable Detection EZiCAT i500
Cable Detection EZiCAT i550 – Depth Finding
Range of cable avoidance tools
Leica DISTO D3a BT – Bluetooth laser measure
Posted by: surveyexpress on: April 30, 2010
The biggest problem with developing plans through hand drawn sketches, is recording measurements incorrectly. The only time this will be picked up is when the plans are inputted into CAD. By this time it could be too late to re-measure or very costly to correct.
Therefore there is a growing requirement amongst architects and surveyors, to develop buildings plans digitally in real time. Not just taking a laptop with AutoCAD onsite, but also integrating a laser measuring instrument.
Leica DISTO D3a BT
The Leica DISTO D3a BT is the perfect instrument for measuring and developing internal building plans in real time direct to CAD software.
Bluetooth
With integrated Bluetooth technology, measurement results are accurately transferred via wireless to a computer. Distances and angles can be transferred from the Leica DISTO D3a BT to a PC (Notebook, Tablet PC, UMPC) or Pocket PC.
Free software
With the free Leica DISTO transfer software, the Leica DISTO D3a BT can be integrated into any software like Excel, Word or CAD. Supplied with the instrument, the free AutoCAD plug-in allows you to transfer the data directly into the program so you can make the drawing just on the jobsite.
The Leica DISTO D3a BT with its navigation keys will allow most of the control from itself.
Please note that you can choose whether you want to transfer all data or the result only.
Precision at the torch of a button
The Leica DISTO D3a BT features a measuring accuracy of ±1mm with an enhanced measuring range of 100m. The Power Range Technology boosts the measuring performance, allowing long range measurements to be taken.
Tilt Sensor
The instrument’s inbuilt tilt sensor quickly and simply determines tilts up to ± 45°. This will allow you to measure the angle of a slope or the angle of a corner in a room.
Smart Horizontal Mode
Thanks to the combination of distance and tilt measurements you can determine the precise horizontal distance and indirect height. This is ideal if you need to know the height of roof beams or light fixtures from the floor, for the size of scaffold or access platform required to carryout maintenance.
For more information – http://www.surveyexpress.co.uk/Home-Inspection/Laser-Measurers-Disto/Leica-DISTO-D3a-BT-Laser-Distance-Measurer/p-131-104-911/
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