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The tM-AD2 is an analog input module that includes 2 single-ended analog input channels and provides a programmable input range on all analog inputs (0 ~ 500 mV, 0 ~ 1 V, 0 ~ 2.5 V, 0 ~ 5 V, 0 ~ 10 V, 0 ~ 20 mA, 4 ~ 20 mA). It provides a high overvoltage protection of 120 VDC. The sampling rate of the tM-AD2 is adjustable and is available in either fast or normal mode and It also provides 4 KV ESD protection as well as 2500 VDC intra-module isolation.
Analog Input
Input Channels
2 Single-ended
Type
0 ~ 500 mV, 0 ~ 1 V, 0 ~ 2.5 V, 0 ~ 5 V, 0 ~ 10 V, 0 ~ 20 mA, 4 ~ 20 mA
Resolution
Normal Mode
14-bit
Fast Mode
+/-0.5%
Sampling Rate
Normal Mode
10 Hz total
Accuracy
Normal Mode
+/-0.1%
Zero Drift
+/- 20 µV/°C
Span Drift
+/- 25 ppm/°C
Input Impedance
Voltage
10 MΩ
Current
125 Ω
Overvoltage Protection
120 VDC
Overcurrent Protection
Yes, 50 mA at 110 VDC
Open Wire Detection for 4 ~ 20 mA
Yes
Communication
Interface
RS-485
Format
(N, 8, 1), (N, 8, 2), (O, 8, 1), (E, 8, 1)
Baud Rate
1200 ~ 115200 bps
Protocol
DCON, Modbus/RTU, Modbus/ASCII
Dual Watchdog
Yes, Module (2.3 seconds), Communication (Programmable)
LED Indicators
Power
1 LED as Power Indicator
Isolation
Intra-module Isolation, Field-to-Logic
2500 VDC
EMS Protection
ESD (IEC 61000-4-2)
±4 kV Contact for Each Terminal
±8 kV Air for Random Point
EFT (IEC 61000-4-4)
±4 kV for Power
Power Requirements
Reverse Polarity Protection
Yes
Powered from Terminal Block
Yes, 10 ~ 30 VDC
Consumption
0.7 W Max.
Mechanical
Dimensions (W x L x H)
52 mm x 98 mm x 27 mm
Installation
DIN-Rail Mounting
Environment
Operating Temperature
-25 °C ~ +75 °C
Storage Temperature
-30 °C ~ +75 °C
Humidity
10 ~ 95% RH, Non-condensing
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