Geometrics Inc. G-882 Cesium Marine Magnetometer Page
Selects one of six display channels. Any channel can be selected. The default
number is the first unused display channel. If a channel currently in use is
selected all subsequent menu items will have their default values set to the
current values. This makes it easy to modify the format of a channel currently
being plotted by simply pressing <enter> until the parameter to modify is
reached.
Display channel ON/OFF [0/1]:
Type '0' to turn a channel off. No further menu parameters will follow and the
channel will stop plotting. Type '1' to turn the display channel on or just
<ENTER>, which defaults to on.
Counter Number [0-2]:
Selects which counter the analog data will come from. Up to three daisy
chained counters may be logged by this program. The default is always
counter 0 (the first [or only] counter).
Analog Channel Number [0-5]:
Selects which A/D channel of the above counter is to be displayed.
Note:
1) Do not confuse "analog channel number" with "display channel
number" above. They are not related in any way. Think of the
display channels as 6 separate input channels to a 6 channel
analog strip chart recorder. The counter channel numbers (along
with counter number information) specify a particular analog
information channel. With three counters there could be 18
separate information channels - anyone of which could be
configured to any display channel. In fact one analog channel
could be assigned to two display channels with differing full scale
coefficients - allowing a course and fine graphics display of the
same channel.
2) This program does not know which analog channels are
actually coming out of the counter. It is possible, for example, for
the counter to be commanded to output channels 0, 4, and 5 only.
This program sees only three analog channels in the counter's
data stream and will refer to them as channels 0,1, and 2.
Unipolar/Bipolar [U/B]:
As described in the magnetometer/counter manual there are 4 unipolar
(including the signal level) [0 to +4.096 volts], and 2 bipolar channels [ñ 2.048
volts]. This parameter is used to signify which type of analog channel this is.
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