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TTI LD300 - Service Manual

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LD300
300W DC
Electronic Load
Service Manual
Book Part Number 48581-1360 Issue 1
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Summary

Specification

Input Ratings

Details maximum input voltage, current, power, and ratings.

Operating Modes

Describes modes like Constant Current, Resistance, Conductance, Voltage, and Power.

Transient Control Features

Covers transient generator, slew rate, and level selection.

Metering and Control

Details meter specifications, monitor outputs, and remote control.

Safety

General Safety Precautions

Provides essential safety warnings and handling guidelines for instrument use.

Installation

Mains Connections and Mounting

Instructions for mains voltage configuration, lead connection, and unit mounting.

Ventilation Requirements

Guidance on ensuring adequate airflow and cooling for the instrument.

Connections

Front and Rear Panel Load Inputs

Details connection methods for load input terminals on front and rear panels.

Monitor and Control Interfaces

Explains current monitor output, remote control, and disable inputs.

Servicing and Dismantling

Handling and Dismantling Procedures

Guidelines for safe handling of components and steps for instrument disassembly.

PCB Component Access

Information on accessing and identifying components on main, display, and power PCBs.

Circuit Description

System Overview and Operation

General explanation of how the load operates in various modes.

Power and Control Circuitry

Description of PSU, Control PCB, and key functional blocks.

Signal Processing and Logic

Details meter selection, analogue signals, and load mode logic.

Feedback and Calculation Loops

Explanation of function multiplier and comparison amplifier circuits.

Protection and Special Features

Covers output enable, power limit, dropout, slow start, and fault logic.

Calibration Procedures

Equipment and Preliminary Setup

Lists required calibration equipment and initial connection steps.

Mode-Specific Calibration

Detailed steps for calibrating various operating modes and frequency.

Amplifier and Offset Adjustments

Procedures for adjusting sense amplifier and function multiplier offsets.

Meter and Output Calibration

Steps for calibrating current meter, monitor output, and input checks.

Parts and Mechanical Information

Electronic Component Identification

Lists part numbers and descriptions for electronic components on PCBs.

Mechanical Item Identification

Lists part numbers for mechanical items like screws, washers, and brackets.

Layouts and Diagrams

PCB Component Layouts

Visual representation of component placement on main, PSU, display, and control boards.

Circuit Diagrams

Schematic diagrams illustrating the electronic circuits of the instrument.

Summary

Specification

Input Ratings

Details maximum input voltage, current, power, and ratings.

Operating Modes

Describes modes like Constant Current, Resistance, Conductance, Voltage, and Power.

Transient Control Features

Covers transient generator, slew rate, and level selection.

Metering and Control

Details meter specifications, monitor outputs, and remote control.

Safety

General Safety Precautions

Provides essential safety warnings and handling guidelines for instrument use.

Installation

Mains Connections and Mounting

Instructions for mains voltage configuration, lead connection, and unit mounting.

Ventilation Requirements

Guidance on ensuring adequate airflow and cooling for the instrument.

Connections

Front and Rear Panel Load Inputs

Details connection methods for load input terminals on front and rear panels.

Monitor and Control Interfaces

Explains current monitor output, remote control, and disable inputs.

Servicing and Dismantling

Handling and Dismantling Procedures

Guidelines for safe handling of components and steps for instrument disassembly.

PCB Component Access

Information on accessing and identifying components on main, display, and power PCBs.

Circuit Description

System Overview and Operation

General explanation of how the load operates in various modes.

Power and Control Circuitry

Description of PSU, Control PCB, and key functional blocks.

Signal Processing and Logic

Details meter selection, analogue signals, and load mode logic.

Feedback and Calculation Loops

Explanation of function multiplier and comparison amplifier circuits.

Protection and Special Features

Covers output enable, power limit, dropout, slow start, and fault logic.

Calibration Procedures

Equipment and Preliminary Setup

Lists required calibration equipment and initial connection steps.

Mode-Specific Calibration

Detailed steps for calibrating various operating modes and frequency.

Amplifier and Offset Adjustments

Procedures for adjusting sense amplifier and function multiplier offsets.

Meter and Output Calibration

Steps for calibrating current meter, monitor output, and input checks.

Parts and Mechanical Information

Electronic Component Identification

Lists part numbers and descriptions for electronic components on PCBs.

Mechanical Item Identification

Lists part numbers for mechanical items like screws, washers, and brackets.

Layouts and Diagrams

PCB Component Layouts

Visual representation of component placement on main, PSU, display, and control boards.

Circuit Diagrams

Schematic diagrams illustrating the electronic circuits of the instrument.

TTI LD300 Specifications

General IconGeneral
BrandTTI
ModelLD300
CategoryMeasuring Instruments
LanguageEnglish

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