ABB IMASI13 Isolated Analog Input Module

Overview

The ABB IMASI13 is an Isolated Analog Input Module designed for use in industrial automation and process control systems. It is part of ABB’s Harmony Rack I/O and supports the Symphony Enterprise Management and Control System. Engineers often use it with ABB Bailey Infi 90 systems for reliable and accurate analog signal processing. Each of its 16 channels is individually isolated and configurable, offering excellent versatility and noise immunity. Moreover, the module supports a wide range of input types including current, voltage, RTDs, and thermocouples.

Technical Specifications

Model: IMASI13
Type: Isolated Analog Input Module
Analog Input Channels: 16, independently configurable
A/D Resolution: 24-bit per channel
Update Time: 180 ms for all 16 channels
Weight: 0.91 kg

Supported Input Types

• Current: 4–20 mA, system or external powered

• Voltage (High-Level):

• 1–5 VDC, 0–5 VDC, 0–10 VDC

• –10 to +10 VDC or custom within range

• Millivolt: –100 to +100 mV, 0 to 100 mV

• Thermocouples:

• Types E, J, K, L, N (14/28 AWG), R, S, T, U

• Chinese E and S types

• RTDs (3-wire):

• 100 Ω Platinum: U.S. Lab, U.S. Industry, European Standards

• 120 Ω Nickel, 10 Ω Copper, Chinese 53 Ω Copper

Performance

• Accuracy:

• ±0.02% (current)

• ±0.04% (high-level voltage)

• ±0.03% (low-level voltage)

• Temperature Drift: ±0.003% of full scale per °C

• Cold Junction Accuracy: ±0.5°C

• Lead Wire Compensation: Supported

Electrical Characteristics

• Input Impedance:

• ≥10 MΩ (current)

• ≥100 kΩ (voltage)

• Operating Voltage: +5 VDC ±5%

• Power Consumption:

• 500 mA typical

• 750 mA maximum

• Isolation Voltage: 1400 V RMS for 2 seconds

Environmental Conditions

• Operating Temperature: 0°C to +70°C (32°F to 158°F)

• Humidity:

• 5% to 95% RH up to 55°C (non-condensing)

• 5% to 45% RH at 70°C (non-condensing)

• Altitude: Operates from sea level up to 3 km

• Air Quality: Non-corrosive environment required

• Pollution Degree: 1

• Overvoltage Category (IEC 61010-1):

• Category I (above 150V)

• Category II (below 150V)