ET-7215 CR ICP DAS RTD Input

The ET-7015/PET-7015/ET-7215/PET-7215 is specifically designed for long-distance RTD measurement. It features automatic compensation for three-wire RTD regardless of the length of wires and provides open wire detection for RTD measurement. The ET-7015/PET-7015/ET-7215/PET-7215 offers 7 channels, each of which could be connected with different kinds of RTD (Pt100, Pt1000, Ni120, Cu100, Cu1000). Also, The ET-7015/PET-7015/ET-7215/PET-7215 is fully RoHS-compliant and has qualification for 4 kV ESD protection as well as 2500 VDC intra-module isolation.

ET-7215 CR : Ethernet I/O Module with 2-port Ethernet Switch, with 7-ch RTD Inputs (RoHS)

• Built-in Web Server
• Web HMI
• Support for both Modbus TCP and Modbus UDP Protocols
• Communication Security
• Dual Watchdog
• Wide Operating Temperature Range: -25 ~ +75°C
• 2-port Ethernet Switch for Daisy-Chain Topology
• I/O Pair Connection
• Built-in I/O 
  • RTD Input: 7 Channels

System Specifications

Software

Built-In Web Server: Yes
Web HMI: Yes
I/O Pair Connection: Yes

Communication

Ethernet Port: 2 x RJ-45, 10/100 Base-TX, Switch Ports
Protocol: Modbus TCP, Modbus UDP
Security: Password and IP Filter
Dual Watchdog: Yes, Module (0.8second), Communication (Programmable)

LED Indicators

For System Running: Yes
For Ethernet Link/Ack: Yes

2-way Isolation

Ethernet: 1500 VDC
I/O: 3000 VDC

EMS Protection

ESD (IEC 61000-4-2): ±4 kV Contact for Each Terminal and ±8 kV Air for Random Point
EFT (IEC 61000-4-4): ±2 kV for Power Line
Surge (IEC 61000-4-5): ±2 kV for Power Line

Power

Reverse Polarity Protection: Yes
Powered from Terminal block: +10 ~ +48 VDC
Consumption: 3.0 W

Mechanism

Dimension: 123mm x 72mm x 35mm (L x W x H)
Installation: DIN-Rail or Wall mounting

Environment

Operating Temp: -25°C ~ +75°C
StorageTemp: -30℃ ~ 80℃
Humidity: 10 ~ 90% RH, Non-condensing

I/O Specifications

RTD Input 

Channels: 7 (Differential)
Sensor Type: Pt100, Pt1000, Ni120, Cu100, Cu1000
Wire Connections: 2/3 wire
Individual Channel Configuration: Yes
Resolution: 16-bit
Sampling Rate: 12 Samples/Second (Total)
Accuracy: +/-0.05%
Zero Drift: +/-0.5 μV/°C 
Span Drift: +/-25 μV/°C
Overvoltage Protection: 110 VDC/VAC
Common Mode Rejection:  150 dB
Normal Mode Rejection:  100 dB
Input Impedance: >1M Ω
Resistance Measurement: 3.2 KΩ Max.