Showa 5683, Operation Manual

Page: 16 / 68

２−３
Number Name Function
(8) Measuring range selection knob
(RANGE) This knob is used to select the measuring range. Turing
this knob clockwise narrows the measuring range (i.e.
increasing the sensitivity). See page 3-4 for measurement
range. In this case, fine tuning is not made. [Fine tuning
LED (10) turns off.]
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) turns off upon range shift. (9)
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 turns on while fine tuning is made.
(11) Measuring range LED This LED displays measuring range from an output of
10V/200,000µ
ε to 10V/200µ ε (for
Model 5683)
) (µ ε =10
-6
strain). For the measuring range for
Model 5684
, refer to
page 3-4 Measuring Range.
(12) Calibration value setup knob
(CAL(µ
ε )) µ ε =10
-6
strain
First digit
Second digit
Third digit
Fourth digit
Indicated value is calculated value based on input. The
value can be set from 1µ
ε to 9999µ ε by a step of 1µ ε .
Pressing the knob changes the digit for calibration value
LED (13) and turning the knob changes values.
For further information, see page 2-5 How to Set
Calibration Value. The value the equivalent voltage value
based on a gauge factor of 2.0 and the one gauge
configuration (1mV/V=2000µ
ε ).
(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.
Table 2-1 Front Panel: Names and Functions (3)