I-97018/S CR ICP DAS Thermocouple IO Modules

The I-97018 is a 8-channel universal Analog Input module with an RS-485 interface that is especially designed for extremely accurate thermocouple measurement and features automatic cold-junction compensation for each channel to ensure temperature output consistency and stable temperature output in the field. The innovative design of the enhanced model ensures that thermocouple measurement is more accurate than with the earlier design. Besides the thermocouple inputs, the I-97018 also supports voltage and current input. The voltage input range can be from +/-15 mV to +/-2.5 V. Up to 8 different types of Analog Input can be connected to a single module. Overvoltage protection of up to 240 Vrms is provided. The module also features per-channel open wire detection for the thermocouple and +4 ~ +20 mA input channels.
I-97018/S CR: 8-channel Thermocouple Input Module with High Voltage Protection (RoHS). Include CN-1824M

• 8-channel Analog Input
• Current, Voltage and Thermocouple Input
• Individual Channel Configuration
• Open Thermocouple Detection
• Temperature Output Consistency
• Stable Temperature Output in the Field
• 240 Vrms Overvoltage Protection
• 4 kV ESD Protection
• Dual Watchdog
• 3000 VDC Intra-module Isolation, Field-to-Logic
• Wide Operating Temperature Range: -25 to +75°C

Analog Input

Channels: 8
Wiring: Differential
Sensor Type Thermocouple: J, K, T, E, R, S, B, N, C, L, M, LDIN43710
Voltage: ±15 mV, ±50 mV, ±100 mV, ±500 mV, ±1 V, ±2.5 V
Current: ±20 mA, 0 ~ 20 mA, 4 ~ 20 mA
Resolution: 16-bit
Accuracy: ±0.1% of FSR
Sampling Rate: 10 Hz (Total)
Input Impedance: > 400 kΩ
Common Voltage Protection: ±200 VDC
Individual Channel Configuration: Yes
Overvoltage Protection: 240 Vrms
Open Wire Detection (for thermocouple only): Yes
Temperature Output Consistency: Yes
Stable Temperature Output in the Field: Yes

Communication

Interface: RS-485
Format: N, 8, 1
Baud Rate: 1200 ~ 115200 bps
Protocol: DCON
Dual Watchdog: Yes, Module (1.6 Seconds), Communication (Programmable)

LED Display

System LED Indictors: 1 LED as Power/Communication Indicator
I/O LED Indicators: -

Isolation

Intra-module Isolation, Field-to-Logic: 3000 VDC

EMS Protection

ESD (IEC 61000-4-2):

• ±4 kV Contact for each Terminal
• ±8 kV Air for Random Point

Power

Power Consumption: 0.6 W

Mechanical

Dimensions (L x W x H): I-97018 144 mm x 30.3 mm x 134 mm
CN-1824M: 80 mm x 36 mm x 28 mm

Environment

Operating Temperature: -25 ~ +75°C
Storage Temperature: -40 ~ +85°C
Humidity: 10 ~ 90% RH, non-condensing