Electrical Automation AC sampling RTU STC-201

1.Integrated multichannel RTU 2.Temperature Range -40~85 degree celsius 3.CE&FCC, IEC III rank 4.Customizable,OEM&ODM

Introduction

1.Specification

   3-phase Measure voltage current, active power, reactive power, power factor ,frequency and etc

   3 One Form C Relay output

   6 photo-coupler isolated digit input with SOE and Counter

   2 analog input (0~5v or 0~20mA )

   1 isolated RS485 or RS232( 3 wire) ,1 isolated RS485

   MODBUS RTU

   harmonic calculation  

2.Parameters

   Analog input

   2 Channel Analog Input

   0~5v or 0~20mA (use jumper to select)

   Input resistance 0~5v 170kΩ 0~20mA 250Ω

   12bit A/D

   0.2% FS ± 2digit  

   

   Digit Input

   6 Channel Digit Input

   Photo-coupler Isolated

   Dry contacts

   Commons: all Negative

   DC 12v~48V Input Voltage :

   20kΩInput resistance

   SOE with 1ms resolving

   Pulse Counter with 32BIT

   1KHz Maximum Counter Frequency 

   Digit relay Output

   3 Channel Relay Output

   One Form C (SPDT)

   250V/3A   AC   Contact Capacity

   Relay Contacts Directly connect to IO terminals

   AC input

   3-Meter or 2-Meter

   3 PT& CT or 2 PT & CT

   Voltage 400V or 120V

   Current 5A or 1A

   Frequency 40~65Hz

   Measurements: Voltage, current, active power, reactive Power of each phase, 3 Phase Power,

                             3 Phase reactive Power, Power Factor, Frequency and etc..

   Voltage 0.5% FS ± 2 digit

   Current 0.5% FS ± 1 digit

   Active Power 1.0% FS ± 3 digit

   Reactive Power 2.0% FS ± 3 digit

   Frequency ±0.01Hz± 1 digit

   Communication

   1 RS485 or RS232( 3 wire) ,1 RS485

    MODBUS RTU

    Max baud rate 38400bps

    Address Setting: DIP SW 1~31

3.Operation Condition

   Operating temperature: -40°C~ 85°C

   Storage   temperature: -40~85°C

   Operating humidity:   <85% RH(20±5°C)

   atmospheric:       86~108Kpa, No corrosive gas or heavy dust

   Weight:   450g

   Input/Output M3 screw terminals

   Mounting: Surface or DIN rail

   Size:    125×110×62 mm

   Power Supply:   AC 85~265V 40HZ~65HZ or DC 24 v OR DC12V

   Power Consumption:   < 3W

   Ingress Protection:     IP30   Higher EMC index

Application & Certification