Table of Contents
Related Manuals for Valhalla 4150ATC
Summarization of Contents
Safety Symbols and Indicators
Instruction Manual Symbol
Symbol indicating user must refer to manual for safety info.
Electrical Hazard Symbols
Symbols for AC, DC, shock risk, and ground connections.
Warning and Caution Indicators
Symbols denoting critical safety alerts.
General Safety Warnings
Equipment Grounding Requirements
Ensure safety class 1 equipment is grounded.
Operation Restrictions
Prohibits operation in explosive or flammable environments.
Fuse and Circuit Protection
Use only specified fuses and correct type.
Access to Live Circuits
Only trained personnel should remove covers.
Chapter 1: General Information
Manual and Product Overview
Overview of the manual and instrument series.
Instrument Identification
Explains how to identify instrument serial numbers.
Chapter 2: Unpacking and Installation
Incoming Inspection Procedure
Procedures for checking unit after shipping.
Voltage and Fuse Configuration
How to set voltage and select fuses.
Installation and Safety
Guidelines for power plug, ground, and rack mounting.
Chapter 3: Specifications
General and Accuracy Specs
Details for 4100ATC and 4150ATC accuracy.
Model Specific Accuracy
Accuracy specifications for 4165 and 4165-1344 models.
General Specifications and Environment
Display, Conversion, and Timing
Information on display type, A-to-D rate, and settling time.
Environmental and Physical Data
Operating temp, humidity, dimensions, weight.
Calibration Interval Recommendation
Guidance on how often calibration is recommended.
Chapter 4: Optional Equipment
Available Options Overview
Lists various optional accessories for the 4100 Series.
Temperature Compensation Options
Details options for temperature compensation.
Test Lead and Clip Options
Describes different Kelvin lead sets and clips.
Interface Options
Covers BCD, IEEE, RS232, and printer interfaces.
Chapter 5: Front Panel Controls
Power, Range, and Compensation Switches
Operation of key front panel switches.
Temperature Compensation Connector
BNC connector for temperature sensor input.
Voltage and Current Terminals
Description of the 4-wire Kelvin terminals.
Zero Control and Voltage Switches
Adjusting display offset and compliance voltage.
Polarity and Data Transfer Switches
Function of polarity reverse and print/send switches.
Resistance Display Window
How the LED display shows resistance values.
Chapter 6: Rear Panel Connectors
Power Input and Fuse Access
Details of the power connector and fuseholder.
Data Output Interfaces
BCD and other remote data interfaces.
Chapter 7: Manual Operations
General Operation and Connections
Guide to operating and connecting test leads.
Measurement Procedures
Step-by-step guides for taking measurements.
4165 and 4165-1344 Operation
Specific measurement steps for these models.
Temperature Compensation Operation
How to use the ATC mode with sensors.
Chapter 8: Interface Operations
BCD Interface Details
Pinout and data format for BCD output.
Other Remote Interface Options
GPIB, RS232C, and printer interfaces.
Chapter 9: Routine Maintenance
Maintenance and Calibration Overview
Recommendations for upkeep.
Calibration Test Equipment and Prep
Required items and pre-calibration steps.
4100ATC Calibration Procedures
Voltage and Current Zero Adjustments
Calibrating zero points.
Range Adjustments for 4100ATC
Adjusting resistance ranges.
4150ATC Calibration Procedures
Voltage and Current Zero Adjustments
Calibrating zero points for 4150ATC.
Range Adjustments for 4150ATC
Adjusting resistance ranges for 4150ATC.
4165/4165-1344 Calibration Procedures
Voltage and Current Zero Adjustments
Calibrating zero points for 4165 models.
Range Adjustments for 4165/4165-1344
Adjusting resistance ranges.
Voltage Clamp Adjustments
Calibrating the voltage clamp settings.
Periodic Maintenance
Cleaning and Service Information
Guidelines for cleaning and contact info.
Chapter 10: Theory of Operations
Troubleshooting and Component Replacement
Diagnosing issues and replacing parts.
Circuitry Overview
General descriptions of main circuit blocks.
Constant-Current Source Details
Explanation of current generation.
Voltage Clamp Circuit Operation
How the voltage clamp works.
Analog-to-Digital Conversion
How voltage is digitized.
Optional Interface Circuitry
Overview of BCD and Smart Interface Board.
Chapter 11: Special Procedures
Handling Noisy Readings and Inductive Loads
Procedures for specific measurement challenges.
Understanding Drifting Displays
Explains causes of fluctuating displays.
Connecting to Inductive Loads
Precautions for connecting to inductive loads.
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