Advantech Adam - 4021, User Manual, Page: 210 / 286

ADAM-4000 Series User Manual 198
A.2 A 8-channel Analog Input Module
Table A.2: ADAM-4018+ Specifications
AI channel number ADAM-4018+: 8 differential
Input type Thermocouple with mV, V, or mA
Input range
J, K, T, E, R, S and B Thermocouple
±20 mA and 4~20 mA
Output
speed (bps)
Maximum distance
RS-485 (2-wire)
1200, 2400, 4800, 9600, 19.2K, 38.4K, 57.6K, 115.2K
4000 ft. (1200 m)
Isolation voltage
3000 V
DC
Resolution 16-bit
Sampling rate 10 samples/second (total)
Bandwidth 13.1 Hz
Accuracy ±0.1% or better
Zero drift ±6 μV/°C
Span drift ±25 ppm/°C
CMR @ 50/60 Hz 120 dB
NMR @ 50/60 Hz 100 dB
Input impedance Voltage: 20 MΩ, Current: 120 Ω
Support protocol
ADAM ASCII
MODBUS/RTU
Watchdog timer
ADAM-4018+:
System (1.6 second) and communication
Power requirements
+10 to +30 V
DC
(non-regulated)
Power consumption
0.8 W @ 24 V
DC
Burn-out detection All T/C input
Table A.3: ADAM-4018+ Range Accuracy for Thermocouple
Range Code (Hex) Input Range Typical Accuracy Maximum Error Units
0E
J thermocouple
0 to760 °C
±1.0 ±1.5 °C
0F
K thermocouple
0 to 1370 °C
±1.0 ±1.5 °C
10
T thermocouple
-100 to 400 °C
±1.0 ±1.5 °C
11
E thermocouple
0 to 1000 °C
±1.0 ±1.5 °C
12
R thermocouple
500 to 1750 °C
±1.2 ±2.5 °C
13
S thermocouple
500 to 1750 °C
±1.2 ±2.5 °C
14
B thermocouple
500 to 1800 °C
±2.0 ±3.0 °C
Note!
Because the CJC sensor of ADAM-4018 is located in the side of chan -
nel 0 to 4, the measurement will have the difference ± 1 °C between
channel 0 ~ 4 and channel 5 ~ 7.