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MKS T3BIA User Manual

MKS T3BIA
59 pages
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MKS Type T3B and T3P Valves
With RS-232 Interface
Supplement
2 Tech Drive, Suite 201
Andover, MA 01810-2449
Main: 978.975.2350 134414-P1
www.mksinst.com RS-232 Interface
Rev 00G
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MKS T3BIA Specifications

General IconGeneral
BrandMKS
ModelT3BIA
CategoryControl Unit
LanguageEnglish

Summary

Valve Safety Information

Symbols Used in This Instruction Manual

Defines WARNING, CAUTION, and NOTE messages used throughout the manual.

Safety Procedures and Precautions

General safety precautions to be observed during all phases of instrument operation.

Remote RS-232 Operation

RS-232 Protocol

Details the format and structure of RS-232 commands and responses.

Security

Explains the need for calibration mode for parameter security.

Message Syntax

Outlines conventions used in RS-232 message syntax, including case sensitivity and spaces.

Priority and Timing of Command Execution

Describes command execution order, prioritization, and timing exceptions.

Setup Messages

Configures operating parameters for the unit via RS-232 commands.

Learn the Valve

Procedure for calibrating the valve by cycling it between open and closed positions.

Setting the Sensor Signal Input Range

Configures the full-scale voltage range for pressure sensor input.

Chamber Pump Speed

Details three available pump speed curves: factory default, learned, and custom.

Learn the System

Enables identification of system characteristics for Model Based Control.

Setpoint Messages

Defines setpoint parameters including values, gains, phases, and process limit relays.

Control Messages

Directly controls valve and system actions via RS-232 commands.

Using the Sensor Zero

Corrects sensor zero offsets by zeroing the selected pressure sensor range.

Calibrating the A/D Converter

Calibrates the analog-to-digital converter span and zero for accurate readings.

Manually Overriding the Backfill Relay

Activates or deactivates relay 2 for backfill valve control or alarm functions.

RS-232 Message Summary

COMMAND

Lists RS-232 commands for device operation, including pressure setpoint and slow pump control.

REQUEST

Lists RS-232 requests for device information, such as slow pump rate and enable status.

Slow Pump Behavior

Explains how the slow pump feature adjusts setpoints gradually for chamber pressure changes.

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