SIGNAL CONDITIONING

tSG-3781B

  • Convert 1-channel 4 ~ 20mA Current Input to 1-channel PWM Output
  • PWM output duty ratio converted by 4 ~ 20 mA Input
  • PWM output frequency configured via push buttons
  • LCD displays the PWM output duty ratio and frequency

Introduction

The tSG-3781B is a single-channel DC current input signal conditioning module that converts 4~20mA current input to PWM output. PWM output has a duty cycle of 0%~100% and performs a linear conversion of the 4~20mA current input. PWM output frequency is adjustable from 600Hz to 800Hz via push buttons. tSG-3781B includes a monochrome LCD display that shows the duty cycle and frequency of the PWM output signal.

Application

  • Heating system in buildings
  • Ventilation system
  • Controlling servo-assisted diaphragm valve

Specifications

 Display
 Type Monochrome Graphics LCD (26x26 mm Viewing Area)

 

 EMS Protection
 EFT (IEC 61000-4-4) ±4 kV for Power Line
 ESD (IEC 61000-4-2) ±4 kV Contact for each Terminal

 

 LED Indicators
 Status 1 x Power and Communication

 

 Analog Input
 Channels 4
 Range +4 ~ +20 mA
 Accuracy ±0.1% of full range
 Bandwidth 1 kHz
 Input Impedance 141 Ω

 

 PWM
 Channels 1
 Type PWM
 Sink/Source (NPN/PNP) Source
 Frequency 600 ~ 800 Hz
 Duty Cycle 1 to 100%
 Mode Continuous

 

 Power
 Reverse Polarity Protection Yes
 Input Range +10 ~ +30 VDC
 Consumption 0.1 W (Typ.)
22.0 W Max. (Note1)

 

 Mechanical
 Dimensions (mm) 53 x 27 x 87 (W x L x H)
 Installation DIN-Rail or Wall Mounting

 

 Environment
 Operating Temperature -25 ~ +75 °C (-13 to 167 ℉)
 Storage Temperature -40 ~ +85 °C (-22 to 176 ℉)
 Humidity 10% ~ 95% RH, Non-condensing

 

Description

 PRODUCT SERIES     DESCRIPTION    QTY   INQUIRY
SG-3784M     CR  4-channel DC Current Signal Input to 4-channel PWM Output Module (RoHS) 1