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Yokogawa ATI3S Temperature Transmitter Module

TheYokogawa ATI3S-00also cataloged astheATI3Stemperature transmitter module, operates as a dedicated hardware component for isolated analog signal conversion within CENTUM VP and CENTUM CS 3000 FIO subsystem architectures. TheYokogawa ATI3S-00(ATI3Stemperature transmitter module) provides direct physical/electrical execution of thermocouple, RTD, mV, and resistance signal acquisition into a 4-20 mA HART loop interface.

Suffix Breakdown & Model Matrix

• ATI3S-00: Standard configuration without extended environmental or protection options
• No additional functional suffix definition provided in source data
• Base series ATI3S: Field I/O temperature transmitter interface family

Hardware Specifications

Parameter	Specification
ModelBrand	Yokogawa ATI3S-00
Origin	Japan
Weight	Approx. 1.2 kg
Dimensions	Not specified
OperatingTemp	-40 to 85 degC (operation), -50 to 100 degC (storage)
PowerConsumption	Not specified
Input Types	Thermocouple (K, E, J, T, N, R, S, B), RTD (Pt100, JPt100), mV, resistance
Measurement Range	-200 to 1820 degC (sensor dependent)
Output Signal	4-20 mA with HART protocol
Accuracy	+/-0.1 percent of reading or +/-0.25 degC
Response Time	<= 250 ms
Stability	+/-0.1 percent of span per year
Housing	IP66 / IP67 aluminum alloy

Yokogawa 4-20 mA HART Loop and Channel Signal Conditioning Characteristics

The ATI3S architecture implements analog-to-current conversion using a 4-20 mA loop structure with HART digital overlay communication. Within Yokogawa FIO systems, signal acquisition from thermocouples and RTDs is processed with cold junction compensation (CJC) handling integrated at the transmitter level.

Channel-level behavior is defined by the following electrical characteristics:

• 4-20 mA loop current scaling for primary process variable transmission
• HART protocol superimposed digital communication on analog current loop
• Sensor linearization executed within transmitter firmware domain
• Input multiplexing across thermocouple and RTD signal classes
• Environmental drift compensation via internal stability calibration model

No FOUNDATION Fieldbus or Profibus PA implementation is defined for this module.

Frequently Asked Questions

Q1: Does ATI3S support direct thermocouple cold junction compensation externally?
A1: No external CJC module is required. Cold junction compensation is handled internally within the transmitter signal processing stage.

Q2: Can ATI3S output be used in non-HART 4-20 mA loops?
A2: Yes. The analog 4-20 mA signal is primary. HART is superimposed and does not block standard current loop operation.

Q3: Does the module support resistance and mV inputs simultaneously?
A3: Input type selection is configuration-based. Only one measurement mode is active per channel configuration instance.

Field Installation Guidelines

• Maintain correct polarity on 4-20 mA loop terminals to prevent transmitter non-start condition
• Use shielded twisted pair cable for thermocouple and RTD input lines
• Ground cable shield at single point within control cabinet to avoid ground loop formation
• Avoid routing signal cables parallel to high-voltage switching conductors
• Ensure IP66/IP67 housing sealing integrity is preserved during enclosure installation
• Verify sensor type configuration matches wiring input before loop energization

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