Mounting The Display Unit (Lt20A); Electrical Adjustment - Magnescale CH02-01 Bedienungsanleitung

〈3〉 Mounting the display unit (LT20A)
With the scale unit connected to the CH02/CH03, connect
the 8-pin mini- DIN connector (male) on the other end of the
cable to the 8-pin mini-DIN connector (female) on the rear
panel of the display unit. Make sure the display and scale
units are turned off before making the connection.
Fig. 4
〈4〉 Electrical adjustment
q Insert the 8-pin DIN connector (male) into the display
w Connect an oscilloscope probe to the PM terminal on
e Set the oscilloscope to 0.5 V/div, 5 ms/div and reset the
* Adjust the PM waveform ripple (c/d) over the entire
A
B
unit and then turn on the display unit. See the LT20A
Instruction Manual for the power- on method.
the preamplifier board and an earth clip to the
connector receptacle screw.
(TIME/div) while moving the scale at a speed of 1 to 10
m/min so that the waveform shown in Fig. 5 can be
observed.
effective length of the scale.
Adjust so that (c/d)≦0.04 (SR127 series), (c/d)≦0.05
(SR128 series),(c/d)≦0.05 (SR118 series). Proceed to
steps q to y.
Fig. 5
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