Minebea DSA-631, Instruction Manual

Page: 16 / 64

6
Number Name Function
⑨
Measuring range fine tuning knob
(FINE)
Fine tuning is made with the knob. Turning the
knob clockwise narrows measuring range (i.e.
increasing sensitivity) and widens the range (i.e.
decreasing sensitivity). As measuring range fine
tuning knob (9) and measuring range selection
functions together, the range automatically shift
when signals exceeds the measuring range. See
measuring range LED (11). Fine tuning LED(10)
comes off upon range shift.
Speed selection
(SLOW / FAST)
Pressing this knob allows the fine tuning speed for
measurement range to switch between high speed
and low speed. Also, resistance balance fine tuning
(4) is switched between high speed and low speed.
⑩
Fine tuning LED This LED comes on while fine tuning is made.
⑪
Measuring range LED The LED displays measuring range from an output
of 10 V/200 000
x
10
-6
strain to 10 V/200
x
10
-6
strain
⑫
Calibration value setup knob
(CAL((
με
)) 1
με ＝
10
-6
strain)
Indicated value is calculated value based on input.
The value can be set from 1
με
to 9999
με
by a step
of 1
με
.
Pressing the knob changes the digit for calibration
value LED (13) and turning the knob changes
values.
For further information, see page-8 “How to set
calibration value”. The value the equivalent voltage
value based on a gage factor of 2.0 and the one gage
configuration (1 mV/V = 2000
με
).
⑬
Calibration value LED The LED displays calibration value and setting
status (digit blinking)
⑭
Calibration value application switch This switch is used to input the value that is set by
calibration value setting knob (12). Pushing toward
right inputs a plus value (tension) and pushing
toward left inputs a minus value (compression). As a
calibration value is superimposed with the input
signal to generate the output voltage, return the
position to OFF (middle) after inputting the
calibration value.
⑮
High-pass filter LED This LED comes on when the high-pass filter used.
Table 2-1. Front panel : Names and Functions (3)
First digit
Second digit