Description

Yokogawa SAV144-S33 Signal Adapter Module

The Yokogawa SAV144-S33, also cataloged as the SAV144 Signal Adapter Module, operates as a dedicated hardware component for analog signal interface and channel-to-channel isolation within CENTUM VP and ProSafe-RS platforms.

Hardware Specifications

Parameter	Specification
ModelBrand	Yokogawa SAV144-S33
Origin	Japan
Weight	0.4 kg (approximate)
Dimensions	Standard DIN-rail module size (approx. 100 mm x 60 mm x 25 mm)
OperatingTemp	-20 degC to 70 degC
PowerConsumption	2.5 W
Number of Channels	16 single-ended / 8 differential
Input Range	±10 V, ±20 V, ±50 V
Accuracy	±0.05%
Noise Floor	<2 μV
Input Impedance	100 Ω
Supply Voltage	12 to 30 VDC
Isolation	500 V AC between channels and ground for 1 min
Connector Type	Screw terminals or spring-clamp field connections

DCS Process Control Features

The SAV144-S33 provides channel-to-channel isolation and supports 4-20 mA HART loop protocol integration. It accommodates analog signals with cold-junction compensation (CJc) and ensures consistent signal transmission between field instruments and Yokogawa I/O modules. Isolation minimizes cross-talk effects in multi-channel configurations.

Frequently Asked Questions

Q: Does the SAV144-S33 support hot-swap installation?
A: No. Field replacement requires system power down to maintain channel integrity and isolation compliance.

Q: What is the maximum load per channel on the backplane?
A: Each analog channel adheres to standard CENTUM VP I/O module current consumption limits; excessive parallel loading is not recommended.

Q: Can firmware updates be applied to the module directly?
A: No. The SAV144-S33 does not contain firmware; signal handling is purely hardware-based.

Field Installation Guidelines

1. Mount the module on a standard DIN rail or designated sub-plate, ensuring no mechanical stress is applied to the connectors.
2. Route field wiring to minimize interference; maintain separation from high-power conductors.
3. Ensure proper grounding of the module housing and shielded signal cables to reduce noise and cross-talk.
4. Verify supply voltage polarity and channel connections prior to energizing the system.
5. Avoid connecting or disconnecting terminals while the system is powered to maintain isolation integrity.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems