20VS5-201
P. 4 / 4
EM-4422 Rev.2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
For a non-inverting amplifica
-
tion with external adjustments,
when the combined resistance of
the span adjustment and 9kΩ is
10kΩ, the gain is (1 + 10kΩ / R
2
)
×
V
IN
. With the span adjustment
(2kΩ), the output is configurable.
The zero is adjustable with a ref
-
erence voltage source of ±15V DC
and the attenuation of 200Ω and
30kΩ.
For an inverting amplification
with external adjustments, when
the combined resistance of the
span adjustment and 9kΩ is
10kΩ, the gain is -(10kΩ / R
2
)
×
V
IN
. With the span adjustment
(2kΩ), the output is configurable.
The zero is adjustable with a ref
-
erence voltage source of ±15V DC
and the attenuation of 200Ω and
30kΩ.
MAINTENANCE
Regular calibration procedure is explained below:
■
CALIBRATION
Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signal. Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet.
+
–
+
–
Non-inverting amplifier circuit zero/span adjustments (input ±5V, output ±10V)
OUTPUT ±10V DC
■
Non-inverting amplifier's circuit with external adjustments: Example of G = 2
+
–
–
+
REFERENCE
VOLTAGE
SOURCE
9kΩ
10kΩ
50kΩ
(ZERO)
2kΩ
(SPAN)
INPUT ±5V DC
10kΩ
30kΩ
200Ω
+
–
1
2
4
3
5
6
+
–
POWER 15V DC
17
16
14
15
+
–
Inverting amplifier circuit zero/span adjustments (input ±10V, output ±10V)
■
Inverting amplifier's circuit with external adjustments: Example of G = -1 (output inverted to the input)
+
–
–
+
REFERENCE
VOLTAGE
SOURCE
9kΩ
10kΩ
100kΩ
(ZERO)
2kΩ
(SPAN)
INPUT ±10V DC
10kΩ
30kΩ
200Ω
+
–
+
–
OUTPUT ±10V DC
1
2
4
3
5
6
+
–
POWER 15V DC
17
16
14
15
