ADLINK ND-6067 - Manual (Page 63)

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3.3 Overview of ND-6018
ND-6018 is a thermocouple input module with 8 input channels. Six of the eight
channels are differential type and the other two are single ended type.
3.3.1 Features of ND-6018
•
8 analog input channels
•
6 differential inputs and 2 single ended inputs
•
Programmable input voltage range
•
Programmable host watchdog timer for host failure protection
•
On board CJC for temperature measurement
•
2500 Vrms isolation voltage
•
Internal watchdog timer for device failure protection
•
Easy programming by software
•
Easy installation and wiring
•
Wiring open detection
3.3.2 Specifications of ND-6018
‹ Interface
♦
Interface: RS-485, 2 wires
♦
Speed (bps): 1200, 2400, 4800, 9600, 19.2K, 38.4K , 57.6K, 115.2K
‹ Analog Input *
♦
Input type: Differential input
♦
Channels Numbers: 8
♦
Resolution: 16 bits
♦
Sampling Rate:3 sample/sec
♦
Unit Conversion: Thermocouple, mV, V or mA
♦
Thermocouple Type: J, K, T, E, R, S, B, N, C
♦
J: 0
°C~760°C K: 0°C~1370°C
♦
T: -100
°C~400°C E: 0°C~1000°C
♦
R: 500
°C~1750°C S: 500°C~1750°C
♦
B: 500
°C~1800°C N: -270°C~1300°C
♦
C: 0
°C~2320°C
♦
Voltage Range: Programmable 6 levels ±2.5V, ±1V, ±500mV,
±100mV, ±50mV, ±15mV
♦
Current Measurement: 0~20mA (with external 125
Ω resistor)
‹ Power