GDP-32
II
INSTRUCTION MANUAL
May 2002 Section 6, Page 6
AUTOMATIC CALIBRATION
Ensure that the starting frequency is set at
the desired values for the calibration. The
calibration can be started at any frequency.
Zonge recommends beginning the
calibration at the lowest survey frequency
to be used. The purpose of the calibration
is to remove the effects of filtering, stray
capacitance and inductance in the system.
Press
to begin automatic
calibration. Below the Data Acquisition
Screen the following warning is displayed:
This warning underscores the fact that
previous calibration data will be
overwritten. Press
Escape
to return to the
Data Acquisition Screen.
Press
Enter
to complete the calibration.
The following message appears:
These options select how to route the
calibration signal to the analog boards.
The INTERNAL option routes the signal
from the Calibration Board to the analog
boards via internal wiring. The
EXTERNAL option routes a calibration
signal of known voltage amplitude to the
output jacks of the Analog I/O Panel.
Jumper wires are required to patch the
signal from these jacks to the signal input
jacks located on the Analog I/O Panel, the
Patch Panel, (See Figure 6.1) and any
amplifiers or other external devices in the
signal stream.
0151 RPIP0613 11.7 26 Jan 00 20:32:16
Survey D-D
Tx 1Rx 700N 60, 5
1Hz 16CyclesTxCurr 8
This will destroy previous calibrates.
CONTINUE to proceed, ESCAPE to abort.
0151 RPIP0613 11.7 26 Jan 00 20:32:46
Survey D-D
Tx 1Rx 700N 60, 5
1Hz 16CyclesTxCurr 8
1) Internal
2) External
(Press 1 – 2, ESCAPE):