Data Acquisition

M-7033D-G

  • 3 RTD Inputs
  • Lead Resistance Elimination for 3/4-wire Connections
  • Open Wire Detection
  • Built-in Dual Watchdog

Introduction

The M-7033/M-7033D is a 3-channel RTD input module that is used for measuring temperatures via an RTD sensor and supports Pt100, Ni120, and Pt1000 types of sensors. The module allows 2/3/4-wire RTD connections and features open-wire detection. The M-7033(D) also includes 3000 VDC intra-module isolation and supports lead resistance elimination for 3/4-wire connections. The M-7033(D) supports Modbus RTU and DCON protocols, which can be configured via software.

Application

• Building Automation
• Factory Automation
• Machine Automation
• Remote Maintenance
• Remote Diagnosis
• Testing Equipment

Specifications

 CPU Module
 Watchdog Timer Module, Communication (Programmable)

 

 Display
Type 5-Digit 7 Segment LED Display

 

 Isolation
 Intra-module Isolation 3000 VDC

 

 EMS Protection
 EFT (IEC 61000-4-4) ±4 kV for Power Line
 ESD (IEC 61000-4-2) ±2 kV Contact for Each Terminal
 Surge (IEC 61000-4-5) ±0.5 kV for Power Line

 

 LED Indicators
 Status 1 x Power and Communication

 

 Analog Input
 Channels 1 Differential
 Type Voltage
Current
 Sensor Type Pt100, Pt1000, Ni120
 Range Voltage: ±150 mV, ±500 mV, ±1 V, ±5 V, ±10 V
Current: ±20 mA
 Resolution 16-bit
 Accuracy ±0.05% of FSR
 Sampling Rate 10 Hz
 Input Impedance Voltage: 30 kΩ
Current: 125 Ω
 Overvoltage Protection ±15 VDC
 Isolated Loop Power ±15 VDC, 30 m

 

 Digital Input/Counter
 Channels 1
 Type Dry Contact
 Sink/Source (NPN/PNP) Source
 ON Voltage Level Close to GND
 OFF Voltage Level Open
 Max. Counts 65535 (16-bit)
 Frequency 50 Hz
 Input Impedance 3 kΩ
 Overvoltage Protection ±30 VDC

 

 Digital Output
Channels 2
Type Open Collector
Sink/Source (NPN/PNP) Sink
Load Voltage +3.5 ~ +30 VDC
Load Current 30 mA/channel
Power on Value Programmable
Safe Value Programmable

 

 COM Ports
 Ports 1 x RS-485
 Baud Rate 1200 ~ 115200 bps
 Data Format (N, 8, 1), (N, 8, 2), (E, 8, 1), or (O, 8, 1)
 Protocol Modbus RTU, DCON

 

 Power
 Reverse Polarity Protection Yes
 Input Range +10 ~ +30 VDC
 Consumption 1.9 W

 

 Mechanical
 Dimensions (mm) 72 x 123 x 35 (W x L x H)
 Installation DIN-Rail Mounting

 

 Environment
 Operating Temperature -25 ~ +75 °C
 Storage Temperature -40 ~ +85 °C
 Humidity 10 ~ 95% RH, Non-condensing

 

Description

 PRODUCT SERIES     DESCRIPTION    QTY   INQUIRY
 M-7033D-G     CR  3-ch RTD Input Module with LED Display, using DCON and Modbus Protocols (Gray Cover) (RoHS)