VD3LQRQ_ING.doc 03/09/2020 2/2
Gain
The instrument is normally supplied with gain value
x1; setting gain x2 or x4 allows to reach the FRS with
half or one fourth of the max potentiometer
excursion.
Connecting the transducer with one end to zero
With this configuration the instrument displays zero
when the cursor is next to one of the transducer
ends. The ends are linked to terminals 4 and 7 while
the cursor is connected to terminal 8.
Connecting the transducer with mid-stroke zero
With this configuration the instrument displays zero
when the cursor is at the transducer mid-stroke. The
transducer ends are linked to terminals 4 and 6 while
the cursor is connected to terminal 8.
Calibration
We advise to adjust the readout in the following way:
Set the machine axis to zero and adjust the display
indication to zero by means of the trimmer P1
placed on the front case
Set the machine axis to its maximum excursion
and adjust the display at the requested value by
means of the display range trimmer P2 placed on
the rear case.
Repeat the operation to achieve the best measuring
accuracy.
The display value increasing direction can be
inverted by inverting the transducer ends.
REMARK
:
The readout type
TF
has both trimmers placed on
the front case, which must be removed to calibrate
the instrument. To remove the front case slightly
lever between the front case and the frame with a
small flat screw-driver.
MAINTENANCE
Check the terminals clamping regularly.
Summary of Contents for LQRQ VD3 Series
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