AMM22T

Description

AMM22T is a Yokogawa thermocouple input multiplexer module designed for precise low-level DC signal measurement and isolation.

Identity

• Part Number: AMM22T

• Type: Thermocouple Input Multiplexer Module

Input Characteristics

• Signal Type: mV input

• Input Range: –100 to +100 mV DC

• Allowable Input Voltage: –0.5 to +4.0 V DC

• Input Resistance: 1 MΩ

• Allowable Signal Source Resistance: ≤1 kΩ

• Disconnection Detection Current: 0.1 µA

• Disconnection Detection Time: ≤10 s

• Input Parallel Connection: Not permitted

Accuracy & Performance

• Accuracy: ±40 µV

• Data Update Period: 1 s

• Effect of Ambient Temperature Change (per 10 °C):

  • mV input: ±80 µV or less

  • Thermocouple input: ±80 µV or less

  • RTS input: ±0.3 Ω or less

Isolation

• Input signals are isolated between systems

Burnout Detection

• Selectable: UP / DOWN / OFF

Installation

• Installed in the I/O module nest

• Connected to terminals of the I/O module nest with M4 screws

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