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Advantech Data Acquisition Modules ADAM 4000 User Manual

Page 347

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Appendix A

Appendix A Technical Specification A-19

A.8 ADAM-4018M 8-channel Analog Input Data Logger

Table A-11 ADAM-4018M Specifications

AI channel number

6 differential and 2 single-ended

Input type

mV, V and mA

Input range

J, K, T, E, R, S and B Thermocouple
±15 mV, ±50 mV, ±100 mV, ±500 mV, and
±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

500 V

DC

Resolution 16-bit
Sampling rate

10 samples/sec(total)

Bandwidth 13.1

Hz

Accuracy

±0.1% or better

Zero drift

±6 μV/

Span drift

±25 ppm/

CMR @ 50/60 Hz

120 dB

NMR @ 50/60 Hz

100 dB

Input impedance

Voltage: 20 MΩ, Current: 120 Ω

Storage capacity
Standard log
Event log
Mixed log

128 KB Flash memory
38,000 samples (total)
16,300 samples (total)
16,300 data samples and 9,300 event
samples (total)

Storage type

Write to end of memory, or circular memory

Logging mode

Standard log, Event log or Mixed log

Sampling interval

2 second to 18 hours

Measurement duration

330 minutes to 20 years

Support protocol

ADAM ASCII

Watchdog timer

1.6 second (System)

Power requirements

+10 to +30 V

DC

(non-regulated)

Power consumption

1.8 W @ 24 V

DC