MALA EasyLocator WideRange Operating manual Version 1.
Draft www.malags.
Table of Contents _________________________________________________ 1 Introduction 4 1.1 Unpacking and Inspection 5 1.2 Repacking and Shipping 5 1.3 Limited Warranty and Liability 5 1.4 Important information regarding the use of this MALA GPR unit 6 2 Hardware and Start Up 7 2.1 Hardware 7 2.2 Start up 7 3 Using the EasyLocator WideRange 10 3.1 Surveying 13 3.2 The settings menu 14 4 EasyLocator WideRange specifications Draft www.malags.
1 Introduction __________________________________________________ Thank you for purchasing the EasyLocator WideRange. The EasyLocator series of products is the most widely used GPR-system for utility detection, world-wide. The WideRange is the latest in a line of easy-to-use tools for the locating industry. It builds on its predecessors in terms of handling and user interface while incorporating the latest and most potent technology currently available.
1.1 Unpacking and Inspection Great care should be taken when unpacking the equipment. Be sure to verify the contents shown on the packing list and inspect the equipment for any loose parts or other damage. All packing material should be preserved in the event that any damage occurred during shipping. Any claims for shipping damage should be filed to the carrier. Any claims for missing equipment or parts should be filed with Mala GeoScience. 1.
1.4 Important information regarding the use of this MALA GPR unit According to the regulations stated in ETSI EN 302 066-1 (European Telecommunication Standards Institute): - The CX unit should not be left ON when leaving the system unintended. It should always be turned OFF when not in use. - The antennas should point towards the ground, walls etc. during measurement and not towards the air. - The antennas should be kept in close proximity to the media under investigation.
2 Hardware and Start Up __________________________________________________ 2.1 Hardware The EasyLocator WideRange is a bandwidth-extended GPR system designed for use with the EasyLocator ProCart Wide. The main components are the UWB-transducer(antenna), the monitor the mechanical carrying system and the batteries.
Connect the Monitor to the transducer with the cable supplied, see picture below. Press and release the button the GPR-transducer, shortly, do keep it pressed. This will start up the unit; the LED’s on the panel will start to blink as well as the LED inside the button, see figure below. Press the button on the monitor; it’ll take about 30 seconds for the unit to start up. Draft www.malags.
After these simple steps the monitor will display the screen shown in figure below, and the system is ready for operation. Draft www.malags.
3 Using the EasyLocator WideRange The parts of the EasyLocator WideRange system are shipped separately. To get started unfold the ProCart, attach the EL Controller to the controller tray, attach the power/Ethernet cable, and mount the batteries in the battery bay (behind the red lid with the MALÅ logo) Once the unit is un-folded and started as described in previous paragraph, operation is very straight-forward and selfexplanatory, some details will be described in the following text.
Starting from the top-right: The yellow circle with a cross-hair is indicating the GPS-status; red means that there’s no GPS attached or no satellites available, yellow means normal GPS accuracy (about 10m) and green means that the unit has been able to apply differential correction. The scale with red, yellow and green indicates the battery status. It is divided into two black bars, since there’s an option of using a separate battery for the transducer. In other respects, this scale is self-explanatory.
The bottom part of the screen shows some information about the ongoing survey. It’s self-explanatory except for the triggertype field. The trigger type field explains what controls the data acquisition, there’s three different types of control; forward wheel, backward wheel and time triggering. Time triggering means that the unit collects data with certain frequency, normally 10 to 20 Hz; it is to be used when surface conditions prohibit the use of a wheel. Draft www.malags.
3.1 Surveying When a survey has been initiated the main menu changes, see figure below. Now the user may stop the survey, save a jpeg-image of the current screen check the velocity trough hyperbola fitting or save a GPS-marker on the current location. The radargram screen is split in two – the upper part shows the high frequency part of the data, the lower the low frequency part. An important feature in the instrument is the track-cursor pointed to by the red-arrow in the figure.
3.2 The settings menu The settings menu is entered through the wrench button on the main menu; it is shown in figure below. Activating the green text-fields, but turning the push-turn button, and then depressing it gives the user means for changing the settings. Below the different options are described. - - Color, the user can switch between gray-scale and color scale for the displayed radar data.
- Soil Type, is defining which ground velocity should be used when converting reflections from a specific time to a depth to be shown on the scales. Note that this type of instrument actually measures time of flight for electromagnetic waves, in ground. The depth displayed on the scales is estimations only. Variations in normal ground are between 80 to 120 meters/microseconds. A user must be aware of this fact.
4 EasyLocator WideRange specifications __________________________________________________ Useful Bandwidth 80-960 MHz Time window > 250 ns Total weight incl.
authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. Draft www.malags.
