DC Input Socket Mount Signal Conditioners


DC Input Signal Conditioners | Socket Mount | SMSC-Series

DC Input Signal Conditioners | Socket Mount

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  • Single Channel Model (SMSC-1) Provides Isolated DC Output in Proportion to a DC Input
  • Dual Channel Model (SMSC-2) Provides Two Independent Isolated DC Outputs in Proportion to Two DC Inputs
  • Eliminates Ground Loops
  • 50% Adjustable Field Configurable Input Ranges: 10 mV to 100V, 1 to 100 mA
  • Four Field Configurable Output Ranges: 0 to 5V, 0 to 10V, 0 to 1 mA, 4 to 20 mA
  • Plug-In Installation
  • Selectable 120/240 Vac Power
  • ASIC Technology for Enhanced Reliability
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The field configurable SMSC Series isolators offer wide ranging input and output capability for scaling and transmitting analog DC signals. The SMSC Series will accept input voltage spans from 10 mV up to 100V, as well as input current spans from 1 mA to 100 mA. The input zero and span potentiometers enable 50% input zero and span adjustability. For example, the 0 to 10V input range can be elevated to 5 to 10V, compressed to 0 to 5V or set to 2.5 to 7.5V.

The SMSC Series offers four (4) popular output ranges: 0 to 5V, 0 to 10V, 0 to 1 mA and 4 to 20 mA. The 4 to 20 mA compliance is a powerful 20 Vdc. The SMSC Series can be configured to accept bipolar input ranges and offers selectable normal or reverse acting operation.

The SMSC series is a 3-port industrial isolator–the output(s) are optically isolated from the input(s) up to 1500 Vdc. The ASIC-based I/O channel(s) are independently transformer isolated from the selectable 120/240 Vac power supply.

The SMSC Series field configurable isolators are useful in eliminating ground loops, converting signal levels and providing signal drive and redundancy. The wide ranging capability of the SMSC Series provides quick universal spare part coverage.

The SMSC Series is equipped with a dual function LED signal monitor. The green, top-mounted LED indicates line power and input signal status. Active line power is indicated by an illuminated LED. If the input signal is 10% more than full scale range, the LED will flash at 8 Hz. Below 0%, the flash rate is 4 Hz.

The factory presets the SMSC Series input(s) and output(s) to 4 to 20 mA. The supply power is configured for 120 Vac operation.

SMSC-1: 1 channel
SMSC-2: 2 channels (each channel can be independently set for I/O range)
Voltage Input:
    Range: 20 mV, 50 mV, 100 mV, 200 mV, 500 mV, 1V, 2V, 5V, 10V, 25V, 50V, 100V (dip-switch selectable)
    Impedance: >100 kΩ
    Overvoltage: Intermittent, 400 Vrms; continous, 264 Vrms
Current Input:
    Full Scale Range: 2 mA, 5 mA, 10 mA, 20 mA, 50 mA, 100 mA (dip-switch selectable)
    Impedance: 20 Ω, typical
    Overcurrent: 170 mA RMS, max
    Overvoltage: 60 Vdc
Common Mode (Input to Ground): 1500 Vdc, max
Zero Turn-Up: 50% of full scale range
Span Turn-Down: 50% of full scale range

SMSC-1: 1 channel
SMSC-2: 2 channels (each channel can be independently set for I/O range)
Voltage Output:
    Range: 0 to 5V, 0 to 10V
    Drive: 10 mA, max (1 kΩ min @ 10V)
Current Output:
    Range: 0 to 1 mA, 4 to 20 mA
        0 to 1 mA: 10V, max (10 kΩ, max)
        4 to 20 mA: 20V, max (1 kΩ, max)

LED Indication (Green):
Input Range: >110% input: 8 Hz flash; <0% input: 4 Hz flash
Accuracy (Including Linearity and Hysteresis):
    <20 mV/2 mA: ±0.35% of full scale, typical, 0.5%, max
    >20 mV/2 mA: ±0.1% of full scale, typical, 0.2%, max
Response Time (10 to 90%): 200 msec, typical
Stability (Temp): ±0.025% of full scale/°C, typical; ±0.05%/°C, max
Common Mode Rejection: DC to 60 Hz: 120 dB
Isolation: 1500 Vdc between input, output and power
ESD Susceptibility: Meets IEC 801-2, Level 2 (4 KV)
Humidity (Non-Condensing):
    Operating: 15 to 95% RH @ 45°C (113°F)
    Soak: 90% RH for 24 hours @ 45°C (113°F)
Temperature Range:
    Operating: -15 to 60°C (5 to 140°F)
    Storage: -25 to 70°C (-13 to 158°F)
    Consumption: 3 W typical, 5 W max
    Standard: Selectable 120/240 Vac, ±10%, 50 to 60 Hz
    SMSC-1: 272 g (0.60 lb)
    SMSC-2: 300 g (0.66 lb)


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