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General| Brand | MKS |
|---|---|
| Model | 247D |
| Category | Power Supply |
| Language | English |
Covers modification, service, grounding, proper fittings, and power cord usage.
Details safe power source, fuse usage, and explosive atmosphere avoidance.
Identifies and illustrates the location of controls on the front panel of the 247 controller.
Describes specific front panel controls like switches, meters, and selectors.
Identifies and illustrates the location of controls on the rear panel of the 247 controller.
Explains how scaling controls adjust voltage signals to display flow rate and set point directly.
Defines the Scaling Control Factor as a product of Gauge and Gas Correction Factors.
Provides instructions on how to adjust the Scaling Control Potentiometer for proper scaling.
Describes the purpose and function of the scaling control potentiometers.
Explains the Gas Correction Factor's role in adjusting for different gases.
Provides a comprehensive guide for setting up the 247 unit and connected MFCs.
Details how to calculate the Scaling Control Factor using Gauge and Gas Correction Factors.
Guides the user through adjusting the Scaling Control Potentiometer to set the calculated factors.
Instructions for controlling multiple gas flows as a fraction of a primary channel's flow.
Provides instructions for configuring dipswitch S15 for external set point control.
Describes controlling individual gas flows and pressure with ratioed flows using external controllers.
Outlines steps to set up an external controller for pressure control applications.
Details how to configure the 247 unit to work with an external controller for pressure control.
Explains how to use TTL logic signals for remote flow control and ON/OFF operation.
Step-by-step instructions for manually controlling individual gas flows using internal set points.
Introduces troubleshooting by isolating sections, starting with power supply diagnostics.
Guides troubleshooting for channel amplifiers, voltage references, ratio amplifier, DPM, and set point circuits.
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