Showa 5683, Operation Manual

Page: 18 / 68

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2.2 How to Set Calibration Value (CAL)
The 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 (=10
-6
). Values should be set for each digit (Figure 2-3). Pressing calibration
value setting knob (12) (Figure 2-4) turns on the fourth digit of calibration value LED (13). Turning
the switch changes the value on (13). Even the indication is blinking, the setting is being made.
Press the knob when your target value is indicated. In this case, blinking of (13) turns to lightning
(value fixed), and then the third digit starts blinking. Repeat this step up to the first digit. After the
first digit turns on and then all digits turns on, calibration value setting completes. To change the
calibration value, repeat the steps above. The value is based on the equivalent value for gauge
factor 2.00 and one gauge configuration. For strain gauge-type transducer, set and calculate the
value based on 1mV/V=2000µ
ε .
■
Calibration value setting
E.g. To convert Calibration value (CAL) from 2000µ ε to 5000µ ε
Fig.2-3 Calibration value (CAL)
The fourth digit blinks. Press calibration setting knob (12)
Turn calibration setting knob (12)
to set the value to 5. Press (12).
Indication 0 at the first digit
blinks. Press (12) once as a
value change for the first digit
is not necessary.
Fig.2-4
Four digits turn on. The
setting completes Indication 5 at the fourth digit turns
on and 0 at the third digit blinks.
Press (12) twice as value changes
for the third and second digits are
not necessary.
For strain input (
µ ε
)
Calibration value
(CAL) setting range
Forth Digit Third Digit Second Digit First Digit
1 to 9999 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
First digit
Second digit
Third digit
Fourth digit