10
5
−
2. Calibration procedure
The explanation of actual load calibration procedures for this unit are two as follows:
1
CSA
−
591
calibration
procedure
by
the
actual
load
→
5
−
2
−
1
2
CSA
−
591
−99
(with
automatically
zero
function)
calibration procedure
by
the
actual
load.
→
5
−
2
−
2.
5
−
2
−
1.
CSA-591
Calibration
procedure
by
the
actual
load
.
Procedures
1
Set the gage onto tie bar, etc.
Connect the digital volt meter, tester, etc.,
between “+” and “
−
” of the check pin, or
between “+” and “
−
” of the voltage output at
rear panel.
Set the gage to the condition of zero adjustment.
Set the rotary switch for zero adjustment to the
position of zero.
“ZERO” adjustment
polarity switch
“ZERO” adjustment
rotary switch
The front panel was removed.
2
Zero adjustment
Confirm whether the output voltage can be
adjustable to
±
0.2 V or less by turning corse
adjustment trimmer.
1
Adjustable
Adjust the output voltage to approx.
±
0.2 V or
less by “ZERO” coarse adjustment trimmer,
and then adjust the output voltage to 0.000 V
by “ZERO” fine adjustment trimmer.
2
Not adjustable
Set the “ZERO” adjustment rotary switch at
the position in which the output voltage
becomes
±
10 V or less.
When the output voltage does not change, set
the “ZERO” adjustment polarity switch to the
position which the output voltage becomes
±
10
V or less. After that, set the output voltage to
approx.
±
0.2 V or less by “ZERO” coarse
adjustment trimmer, and adjust the output
voltage to 0.000 V by “ZERO” fine adjustment
trimmer.
・
When both LED1 and LED2 is turned off, the
output voltage outputs approx.
が±
50 mV or
less.
・
When LED1 lights on, the output voltage is
approx. +50 mV or more. When LED2 lights on,
the output voltage is approx.
−
50 mV or more.
rotary switch
“ZERO” coarse
adjustment trimmer
“ZERO” fine
adjustment trimmer
“GAIN” rotary switch
“GAIN” trimmer
CAL switch
LED1
Check pin “+”
Check pin “
−
”
LED2
V
−
OUT “
+
”
V
−
OUT “
−
”
Rear panel
3
Sensitivity adjustment
1
Take the rated load to the gage, and turn the
“GAIN” rotary switch so that the output
voltage may approach 10.00 V most.
2
Adjust the output voltage to 10.000 V by using
the “GAIN” trimmer.
The sensitivity adjustment range is
±
10 V of
output voltage at the input of
±
300
μ
ST to
±
2000
μ
ST.
Summary of Contents for CSA-591
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