abem Terrameter LS, Инструкция по эксплуатации

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ABEM Terrameter LS
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• Lund spread cables and suitable quantity of cable joints and cable jumpers
• Suitable quantity of electrodes
Double check that the internal and external batteries for the Terrameter are charged
before going to the field!
6.3 Recommended Additional Equipment
Often additional equipment is required for efficient acquisition of good quality data.
The following list is an attempt to summarize frequently needed additional equipment.
•
Spare external battery
• Tool and spare kit
• Battery charger(s) if operation away from the home base for more than one day
• A set of walkie-talkies, if cables with long electrode take-out spacing is used (that
is more than 2 meters between each take-out).
• Polyurethane hammers of Stanley type (two or more) for hammering down
electrodes.
• Plastic bottles for water with added salt and viscosity increasing polymer, to
improve electrode contact in dry ground. A drill mud polymer (such as Johnson
Revert or similar) added to the water can increase the viscosity to prevent draining
away during measurement in permeable soils. Mix salt and polymer with water to
suitable viscosity, it may be wise to do this in buckets before pouring the mixture
into plastic bottles of convenient size.
• At least an additional double amount of electrodes and jumpers if operating in
areas with dry ground giving contact difficulties
•
Spray paint and pegs to mark out profile lines
•
Non-metallic ruling tape to measure distance from profile line to reference objects,
or to measure electrode spacing if smaller spacing than the take-out spacing are to
be used
•
Levelling equipment and / or differential GPS receiver if topography needs to be
recorded (depends on type of terrain)
• Remote electrode cable(s) if pole-pole or pole-dipole array is used
•
Pocket multimeter with continuity check function for error detection
6.4 Setting up the Hardware
Roll out the electrode cables and connect the electrodes to the electrode cable. Be
careful to ensure that adequate electrode contact is provided, and the cable jumpers
that connect the electrodes to the electrode cables are in good condition and properly
connected. It is recommended to twist or slide the connector up and down while
connecting, to remove dirt or oxide on the contact surfaces.
Connect the electrode cables to Terrameter LS, making sure to connect them in the
right order in relation to the cable layout used. Please see chapter 6 Measurement
Procedures for a more detailed description for different types of surveying / imaging.