Table of Contents
Related Manuals for MKS 42A
Summarization of Contents
Safety Information
Symbols Used in This Instruction Manual
Defines WARNING, CAUTION, and NOTE messages used throughout the manual.
Symbols Found on the Unit
Describes symbols that may appear on the unit itself for identification and warnings.
Safety Procedures and Precautions
Outlines general safety precautions for operating and handling the instrument.
General Information
Introduction
Introduces the MKS Type 41/42/51/52 Mini Vacuum Pressure Switch and its technology.
How This Manual is Organized
Explains the structure and content of the instruction manual for user guidance.
Customer Support
Provides information on obtaining maintenance, repair, and technical assistance from MKS.
Installation
How To Unpack the Unit
Guides users through the process of unpacking the pressure switch and checking for damage.
Product Location and Requirements
Details environmental conditions and power requirements for installing the unit.
Dimensions of Single-Ended Units
Provides dimensional drawings and specifications for single-ended unit configurations.
Dimensions of Flow-Through Units
Provides dimensional drawings and specifications for flow-through unit configurations.
Mounting
Describes the recommended mounting orientations and considerations for the pressure switch.
Electrical Information
Details the required input power specifications and connector pinouts for the unit.
Interface Cables
Explains requirements for interface cables, including grounding for CE compliance.
Overview
Switch Output General Information
Describes how the pressure switch output changes state based on factory set pressure values.
Labels
Explains the serial number label and trip point action label on the mini-pressure switch.
Sensor
Describes the variable capacitance sensor mechanism and how it measures pressure.
Trip Point Value
Explains that the trip point value is factory-set and not adjustable in the field.
Full Scale Range and Trip Point Accuracy
Details how the full scale range impacts the accuracy of the trip point setting.
Method of Operation
Explains how the pressure switch relay changes state when pressure crosses the trip point.
Hysteresis
Describes the factory-set hysteresis for preventing relay chatter, which is not adjustable.
Gage Switch Operation
Explains the functionality of gage pressure switches, including normal and reverse calibration.
Atmospheric Switch Functionality
Describes how a gage switch with reverse calibration can function as an atmospheric switch.
Operation
How To Use the Pressure Switch
Provides step-by-step instructions for connecting and operating the pressure switch.
Maintenance
General Maintenance
States that the pressure switch requires no regular maintenance but suggests periodic checks.
Repair and Service
Guides users on how to contact MKS for repair services and obtain an ERA Number.
Product Specifications
Performance Specifications
Lists key performance metrics like accuracy, compatibility, and response time.
Physical Specifications
Details physical characteristics such as burst pressure, dimensions, fittings, and weight.
Electrical Specifications
Outlines input power requirements, relay ratings, and contact ratings.
Environmental Specifications
Specifies operating and storage temperature and humidity ranges for the unit.
Model Code Explanation
Model Code Structure
Explains the structure of the model code used to identify unit options and configurations.
Type Number Designation
Identifies the model number of the instrument based on the first three characters of the code.
Full Scale Range and Units
Details the codes for full scale range and engineering units within the model code.
Reverse Calibration Range Codes
Lists the model code designations for full scale ranges specific to reverse calibration.
Fitting Codes
Explains the two-letter codes used to specify different fitting types for the units.
Input Power Codes
Details the single number codes representing the input power voltage ranges.
Relay Mode Codes
Explains the single letter codes that specify the relay's trip point direction.
Connector Codes
Lists the single letter codes indicating the type of connector used on the switch.
Trip Point Value Codes
Describes the three-digit codes for specifying the trip point value and its units.
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