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4.2.1.4
Paper transport
The buttons associated with this function are marked with two small black triangles (arrows). With these
buttons the paper can be positioned very precisely underneath the pens. Each time that one of these
buttons is pressed shorter than one second, the paper is moved over a distance of 0.05 mm in the
corresponding direction. If the key is held down, however, after one second the paper will start moving at
a speed of 2 mm/s. It will do so for the next five seconds. So it moves over a distance of 10 mm.
If the button is still being held at the end of the sixth second, the paper will start moving at a speed of 20
mm/s. Using proper timing while operating, these paper transport keys make it possible to put the pens at
any desired position very quickly. The paper can only be transported in this manner when the "Record"
switch is in the "Off" position.
4.2.1.5
Home and set start of plot
These buttons can only be operated when the "record" switch is in the "off" position. Pressing the "Home"
button will bring back the paper to the position where the origin is located. Origin is either the position
during powering up or the position where the "set" button was last pressed. "set" is used for defining a
new origin for "Home" and at the same time for the "Major grid mark" position. Be careful not to operate
the "home"-button, if you are not certain about the location of the origin. If the origin lies within an area of
the paper, which already has been torn off the recorder, the recorder of course will loose control of the
paper. Seeking home takes place at a velocity of 20 mm/s.
NOTE:
When no optional electrical pen-lift is built in, the pens have to be
lifted before "home" is activated to avoid a trace during paper reverse movement.
4.2.1.6
Go to next grid mark
This function is activated by pressing "grid", also in the record off mode. Each time it is pressed, the
paper advances to the next major grid mark. The major grid mark lines are lines parallel to the paper-
ruler with 1 cm intervals. When the origin has been set precisely on top of a grid mark, pressing the "grid"
button will always bring the pen on top of the next grid mark. Paper transport takes place at a velocity of
20 mm/s for this function.
4.2.2
Servo system
The BD 12E is equipped with two fully independent servo systems. Each servo system has an operator
panel for controlling its functions. The following explanation of these functions holds equally well for both
channels.
The signals that are to be recorded must be connected to the corresponding input terminals at the rear
side of the recorder. The black terminals are the negative ones and the red terminals the positive ones.
The maximum input voltage, which is allowed across the terminals for each of the channels, is 30 VAC or
42 VDC for personal safety. If a higher input voltage is used, this will not damage your recorder, but the
input terminals cannot be touched safely any more. The maximum allowable voltage difference across
any two terminals of different channels is 500 V.
4.2.2.1
Span
The input span of each channel is selected with the rotating switch named "range". This switch has 14
positions. Turned counter-clockwise all the way, a span of 20 V is chosen. This means that an input
voltage of 20 V will move the pen all the way from the left- hand edge to the right-hand edge of the paper.
(Supposed, of course, that the zero-position was at the left side of the paper)
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Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Instruction manual BD 11/11E / 12/12E
Kipp & Zonen B.V.
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