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Effective distance for Bluetooth wireless communication is within 10 meters; if out the range, communication would fail and it needs to pair Bluetooth once again.
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Lay the transmitting coil and receiving coil according requirements; rest of the wire should be released from the coil rack, laying out in linear or S-shape arrangement on the ground.
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If the waveforms are in red, the sampled data are negative; for solution, exchange direction of the receiving coil.
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When transmitter is in transmitting state, DO NOT touch the power supply output connecting ports (A, B connecting port) or uninsulated wire.
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If the waveforms gained are not uniform, interference source may exist nearby, such as high-voltage electric network, atmospheric interference, electromagnetic device, or damping resistance is not suitable.
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Keep mobile phone call or message sending or receiving from the pocket PC, for system is under Bluetooth communicating, which may disturb communication between the PDA and the receiver.
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External battery voltage for the receiver 12V. When voltage is lower than 10V, please do recharge the battery in time.
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Control data sampling through notebook PC or desktop computer: install Bluetooth USB adapter driver (see Appendix F), and then connect the Bluetooth USB adapter to the USB port on the computer. Software operation on PDA is the same as that on the computer.
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If it is GPS synchronization, DO NOT cover the GPS antenna with any other object, otherwise, synchronization accuracy may decrease or GPS synchronized controller is unable to get into synchronization state. If satellite signal LED shows weak satellite signal received, adjust position of the GPS antenna to get wider range above it.
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If working LED of the WTEM-1T/GPS synchronized controller shows that the controller gets ready to work, but the satellite signal LEDs flicker extremely, all light on or all light off, in this case, GPS satellite signal received is very weak and system has exited from synchronization state; until 16 seconds later, if system still fails to get again into synchronization state, the GPS synchronized controller stops to give transmitting control signal to the transmitter, and thus force the transmitter to stop transmitting power supply.
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Under GPS synchronization mode, receiver could not automatically gain transmitting current and turn-off time; however, operator could read these two parameters on the process display on the transmitter.
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