ES-4411 Rev.2
20VS
Hybrid IC Isolation Amplifiers 20 Series
ISOLATION AMPLIFIER
(3-port isolation)
Functions & Features
• Being used for printed wiring board installation
• Isolating between input, output and power
• 24 V DC or 15 V DC power supply
Typical Applications
• Isolating the field and input or output circuit of microprocessor to reduce noise from field
• Available for manufacturers of small-lot products to omit the development of isolation circuit
VOLTAGE OUTPUT TYPE
MODEL: 20VS-4W4W-[1]
ORDERING INFORMATION
• Code number: 20VS-4W4W-[1]
Specify a code from below for [1].
(e.g. 20VS-4W4W-R)
INPUT
Voltage
4W
: -10 – +10 V DC (Input resistance 1 MΩ min.)
OUTPUT
Voltage
4W
: -10 to +10 V DC (Load resistance 3.5 kΩ min.)
[1] POWER INPUT
DC Power
R
: 24 V DC
U
: 15 V DC
GENERAL SPECIFICATIONS
Construction
: Hybrid IC
Housing material
: Flame-resistant resin (black)
Isolation
: Input or preamp drive power to output to power
Zero adjustment
: -0.5 to +0.5 % (bottom)
Span adjustment
: 95 to 105 % (bottom)
OUTPUT SPECIFICATIONS
Preamp driver power
: ±15 V, 5 mA
INSTALLATION
Power input
•
DC Power
: Operational voltage range rated voltage ±2%, approx. 20mA
(ripple 2% p-p max.)
Operating temperature
: 0 to 60°C (32 to 140°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Soldering to the printed wiring board
Weight
: 50 g (1.76 oz)
PERFORMANCE in percentage of span
Accuracy
: ±0.1 %
Temp. coefficient
:
Offset drift 50 ppm/°C
Span drift 100 ppm/°C
Frequency characteristics
: Approx. 1 kHz, -3 dB
Response time
: Approx. 0.6 msec. (0 – 90 %)
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 1000 V AC @1 minute
(Input or preamp drive power to output to power)
EXTERNAL DIMENSIONS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM