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General| Brand | MKS |
|---|---|
| Model | 649B |
| Category | Controller |
| Language | English |
Defines WARNING, CAUTION, and NOTE messages used in the manual.
Describes the meaning of symbols marked on the unit itself.
Provides an overview of the MKS Type 649B controller, its features, and capabilities.
Details the advanced flow sensor and bypass design for accurate measurements.
Information on obtaining service, repair, and contacting MKS for assistance.
Steps for safely unpacking and inspecting the unit upon receipt.
Details cable types, model codes, and ordering information for connecting the controller.
Specifies ventilation, operating temperature, pressure, and power requirements for installation.
Covers fittings, mounting hardware, and gas pressure considerations for installing the controller.
Instructions for connecting the controller for downstream pressure control.
Details the I/O connector pinout and functionality for system integration.
Lists the factory default settings for pressure control, set point, flow, and trip points.
Describes user adjustable controls and test jacks on the unit.
Explains the operational pressure control range of the 649 controller.
Describes how the controller measures mass flow rate using a thermal technique.
Details how to adjust Proportional (P) and Integral (I) terms for optimal system response.
Details the hierarchy of commands and their precedence in controlling the unit.
Describes the two trip points, their operation, and connection to external relays.
Instructions for checking and setting the pressure transducer zero for accurate readings.
Instructions for adjusting the pressure transducer span using a calibration standard.
Guide to optimizing controller performance by adjusting P and I parameters for system stability.
Instructions for measuring and adjusting trip point values using a digital voltmeter.
Instructions to change the pressure output and set point signal range via internal jumpers.
Instructions for checking and resetting the zero for the pressure transducer and flow meter.
Details accuracy, repeatability, leak integrity, and temperature coefficients of the unit.
Lists burst pressure, dimensions, fittings, ranges, power, and materials used in the unit.
Specifies ambient and storage temperature and humidity ranges.
Details trip point characteristics like rated current, state, hysteresis, and settings.
Explains how the model code identifies the specific options and configuration of the unit.
Lists ordering codes for different gases supported by the unit.
Lists ordering codes for various full-scale flow rates.
Information on valve orifice sizes and their importance for application matching.
Instructions for verifying the correct valve orifice size based on pressure and flow rates.
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