6-16-19, JINGUMAE, SHIBUYA-KU, TOKYO 150-0001, JAPAN
TEL: +81-3-3400-6147 FAX: +81-3-3409-3156
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9. How to Adjust Output
We have already performed output adjustment in
accordance with your requests at your order. Therefore, no
output adjustment is required if you operate this product
within your requested specifications. If matching with devices
to be connected or regular calibration is required, follow the
steps below.
For calibration, use signal sources (including a standard
voltage/current generator) and measuring instruments
(including a voltmeter and an ammeter) the tolerances of both
of which are more than 10 times that of this product and wait
for 30 minutes or more after turning on the power.
Output adjustment is performed with the setting switch on
the front side of this product.
○
How to adjust
①
Set the selection switch 1 (SW SET) to ON.
This action enables switch operation.
If the setting tool is connected, communication is shut
off.
②
Set the selection switch 2 (M OUT) to OFF.
③
Set the selection switch 4 (ZS SEL) to ZERO.
Use the UP or DOWN switch to adjust the output to 0%
when a 0%-equivalent input is provided and the select
switch 3 (CH SEL) is set to OUT1 or OUT2.
④
Set the selection switch 4 (ZS SEL) to SPAN.
Use the UP or DOWN switch to adjust the output to 100%
when a 100%-equivalent input is provided and the select
switch 3 (CH SEL) is set to OUT1 or OUT2.
⑤
Provide a 0%-equivalent input signal again to make sure
that the output is 0%.
If the output deviates, repeat the steps
and
.
⑥
Set the selection switch 1 to OFF after completion of
adjustment.
At this moment, the adjusted values are written into the
internal memory and switch operation becomes disabled.
* The adjusted values are written into the internal memory
and turning on or off the power does not clear the values.
To restore the settings to factory defaults, use the setting
tool to initialize the settings.
The write limit to the internal memory is 10,000 times at
minimum.
* If the power is turned off during adjustment, the adjusted
values are not written into the internal memory.
* approximately
±
10% fs.
10. Simulated Output Function
This product is equipped with the simulated output function
to conduct tests including connection test.
The simulated output is performed with the setting switch
on the front side of this product. (Refer to the drawing in
Section 9 for the switch position.)
○
Simulated output procedure
①
Set the selection switch 1 (SW SET) to ON
This action enables switch operation.
If the setting tool is connected, communication is shut
off.
②
Set the selection switch 2 (M OUT) to ON.
③
The simulated output is provided to the channel selected
with the selection switch 3 (CH SEL). (An output
according to an input is provided to the unselected
channel.)
The simulated output value varies with unipolar or bipolar
setting.
Use of the UP and DOWN switches provides users with 3
steps of outputs.
Unipolar: (DOWN) 0%
⇔
50%
⇔
100% (UP)
Bipolar: (DOWN) -100%
⇔
0%
⇔
100% (UP)
④
Set the selection switch 1 to OFF after completion of
adjustment.
11. Operation beyond Specifications
1) Excessive input
If an input signal beyond the upper limit is provided, the
output signal increases almost in proportion to the input
until approximately 120% fs of scaling setting. But even if
an excessive input signal is provided more, the output
signal does not increase any more.
2) Insufficient input
The output is described below when an input signal below
the lower limit is provided.
(a) For unipolar setting, the output signal decreases almost
in proportion to the input until approximately -20% fs
of scaling setting. But even if an insufficient input
signal is provided more, the output signal does not
decrease any more.
(b) For bipolar setting, the output signal decreases almost in
proportion to the input until approximately -120% fs of
scaling setting. But even if an insufficient input signal
is provided more, the output signal does not decrease
any more.
3) Load beyond specifications
(a) For current output, if the input exceeds the “range of
allowable load resistance”, the output is provided
almost in proportion to the input until the voltage
between the output terminals becomes approximately
15 volts. But if the output becomes larger, the output is
saturated resulting in larger error.
(b) For voltage output, if the input falls below the “range of
allowable load resistance”, the output is saturated
resulting in larger error.
