Advantech ADAM-4118 - *Discontinued* - RS-485 8-CHANNEL THERMOCOUPLE INPUT MODULE MODBUS
by Advantech

Wiring is simple using two wires to communicate with their controller or other RS-485 devices. ADAM-4000 modules use the EIA RS-485 communication protocol; the industry's most widely used bi-directional, balanced transmission line suitable for industrial environments.

Software Configuration and Calibration
ADAM analog I/O modules contain no pots or switches to set. By merely issuing a command from the host computer, you can change an analog input module to accept several ranges of voltage input, thermocouple input or RTD input.
 
Watchdog Timer
A watchdog timer supervisory function will automatically reset the ADAM modules in the event of system failure. Maintenance is thus simplified.

General

• Power Consumption: 0.5W @ 24 VDC

Analog Input

• Channels: 8 differential and independent configuration channels
• Input Impedance: Voltage: 20 MΩ Current: 120 Ω
• Input Type: T/C, mV, V, mA
• Input Range:

Thermocouple

J	0 ~ 760°C	R	500 ~ 1,750°C
K	0 ~ 1,370°C	S	500 ~ 1,750°C
T	-100 ~ 400°C	B	500 ~ 1,800°C
E	0 ~ 1,000°C

Voltage mode ±15 mV, ±50 mV, ±100 mV, ±500 mV, ±1 V, ±2.5 V

Current mode ±20 mA, 4 ~ 20 mA

• Accuracy:

  Voltage mode: ±0.1% or better

Current mode: ±0.2% or better

• Resolution: 16-bit
• Sampling Rate: 10/100 samples/sec (selected by Utility)
• CMR @ 50/60 Hz: 92 dB
• NMR @ 50/60 Hz: 60 dB
• Overvoltage Protection: ±60 VDC
• High Common Mode: 200 VDC
• Span Drift: ±25 ppm/°C (Typical)
• Zero Drift: ±6μV/°C
• Built-in TVS/ESD Protection
• Burn-out Detection

ADAM-4118.pdf

324 K