IMASM02

Overview

The IMASM02 from ABB is designed to input eight isolated thermocouple, -100 to +100 mV, or 0 to 100 mV analog signals. A single switch (S1) sets the input group address (0 to 7), and a front panel LED displays the module's operating status (calibration or normal operation).

Power Requirements

• Voltage:

• +5 VDC (±5%)

• +15 VDC (-2.5%, +5%)

• -15 VDC (+2.5%, -5%)

• +24 VDC (+12%, -10%) (from TU/TM)

• Current (maximum):

• 400 mA (+5 VDC)

• 80 mA (+15 VDC)

• 45 mA (-15 VDC)

• 5 mA (+24 VDC)

• Power Dissipation (maximum):

• 2.0 watts (+5 VDC)

• 1.2 watts (+15 VDC)

• 0.7 watts (-15 VDC)

• 0.015 watts (+24 VDC)

Input Specifications

• Thermocouple Types: E, J, K, R, S, T, or Chinese E, S

• Millivolt Input Range: -100 to +100 mVDC, 0 to +100 mVDC

• Resistance: 200 kΩ

• Normal Mode Rejection: -80 dB at 60 Hz (minimum)

• Common Mode Voltage: ±250 V (maximum)

• Common Mode Rejection: -120 dB at 60 Hz (minimum)

Termination Options

• NTAI02, NTTA01, NIAI02

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