INSTRUCTION MANUALISOLATION AMPLIFIERMODEL(current output, 3-port isolation)

20VS5-301

BEFORE USE ....

POINTS OF CAUTION

Thank you for choosing us. Before use, please check contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact our sales office or representatives.

■ POWER INPUT RATING & OPERATIONAL RANGE• Locate the power input rating marked on the product andconfirm its operational range as indicated below:		 12V DC ±10%, ≤ 70mA with 20mA output• When there is spike noises in the power, make a filter
with an appropriate capacitor and inductor to cut it off.

■ PACKAGE INCLUDES:
Amplifier...............................................................................(1)■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ INSTRUCTION MANUALThis manual describes necessary points of caution when
you use this product, including installation, connection andbasic maintenance procedures.

■ ENVIRONMENT• Indoor use.
• When heavy dust or metal particles are present in theair, install the unit inside proper housing with sufficientventilation.
• Do not install the unit where it is subjected to continuousvibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -10 to +70°C(-14 to 158°F) with relative humidity within 30 to 90%
RH in order to ensure adequate life span and operation.
■ WIRING• Do not install cables close to noise sources (relay drivecable, high frequency line, etc.).
• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.
■ INSTALLING THE MODULE• When it is installed on the printed wiring board, land diameter ø1.5 and through-hole ø0.9 are recommended.
• Do not place any parts and circuit trace under the unit.
■ AND ....
• The unit is designed to function as soon as power is supplied, however, a warm up for 10 minutes is required forsatisfying complete performance described in the datasheet.
• With voltage output, do not leave the output terminals
shortcircuited for a long time. The unit is designed toendure it without breakdown, however, it may shorten appropriate life duration.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-4445 Rev.1

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20VS5-301

TERMINAL CONNECTIONS■ EXTERNAL DIMENSIONS unit: mm (inch)
5.08 (.2)P×3

4.5 – 5.1 (.18 – .2)[7.3(.29)]

0.75 (.03) dia

2.54 (.1)[7.3(.29)]*

25.4(1)1.0 (.04) dia

40 (1.57)

1.3 (.05) dia

Max.16 (.63)

3.0 (.12)[4.7 (.19)]

5.08 (.2)P×6[4.7 (.19)]

40 (1.57)* Part height: Max. 1.5 (.06)

PIN ASSIGNMENT
4111093827165(BOTTOM VIEW)■ CONNECTION DIAGRAM+ 18 +- 210 –+10V 3

6 +-10V 4

5 –INPUTREFERENCE VOLTAGE SOURCEOUTPUT

POWER SUPPLYMG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-4445 Rev.1

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APPLICATION EXAMPLES
I0= 20 KΩ/(R1+VR1) × (Vin/120 Ω)
R2: approx. 2 MΩ, VR2: 50 kΩ
R1+VR1= 41.6 kΩ; 20 mA output with 5 V input
R1+VR1= 20.8 kΩ; 20 mA output with 2.5 V input
R1’s and R2’s resistance temperature coefficients: ±20 – 50 ppm/°C with tolerance of ±1%
VR1’s and VR2’s resistance temperature coefficients: ±100 ppm/°C
20kΩ

+VR1Isolation

R11+INPUT
0 – 5V DC

R2VR2Output
Driver8CURRENT OUTPUT
0 – 20mA DC

21036 +

45 –POWER SUPPLYCHECKING
1) Terminal wiring: Check that wiring is correctly connected according to the connection diagram.
2) Power input voltage: Check voltage across the pins.
3) Input: Check that the input signal is within 0 – 100% ofthe full-scale.
4) Output: Check that the load resistance meets the described specifications.

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 accuracy described in the data sheet.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-4445 Rev.1

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