ITech IT8700 Series User Manual

Operations introduction
Copyright © Itech Electronic Co., Ltd. 39
Fig 4-3 CV mode
Ranges
You can select the lower or higher range for CV mode too. Voltage can be
edited in either of the two ranges. Low range will supply higher accuracy and
better resolution when you set lower range. If any value you set is outside the
maximum value of the low range, you should select high range. If the electronic
load work in remote control mode（USB / RS232 / Ether-net）, you can use
VOLT:RANG command to voltage range.
Voltage level
Set the voltage level on front panel or by sending SCPI command（VOLT <n）,
if the load is in CV mode, the new setting immediately changes the input at a
rate determined by the voltage slew rate. If the load is not in CV mode, the set
voltage level will be saved in the instrument for use, until switch to CV mode.
Triggered voltage level
This function only can be used in remote control mode, when the load is in the
CV mode, after receive the VOLT:TRIG <NRF+> command, subsequent
triggers will have no effect on the input unless another triggering signal is sent.
VOLT command will cover the VOLT:TRIG <NRF+> value, this function is used
to synchronize Multi-channel input load changes.
Limited current value
Set limited current value under CV mode.
CV loop speed
This item can set the CV Loop response speed: high speed or low speed.
Transient resistance level
Set A/B transient voltage level on front panel or by remote operation, the load
can continuously toggle between the two levels when transient operation is
turned on.
4.3.4 Constant power (CW) mode
In CW mode, electronic load will consume a constant power. As shown in fig4-4,
when input voltage increase, the input current will decrease, while power will
remain the same. P=(V*I).

ITech IT8700 Series Specifications

General

Model	IT8700 Series
Display	LCD
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 70°C
Operating Modes	CC, CV
Communication Interface	RS232/USB/LAN/GPIB(optional)
Protections	OVP, OCP, OTP
Channels	Single
Resolution	1mV

Summary

Safety Precautions

General Operating Safety

Essential safety measures to observe during instrument operation.

Compliance Standards

Chapter 1: Inspection and Installation

Module Installation Procedure

Connecting the Power Cord

Connecting the Device Under Test (DUT)

How to connect the DUT using local and remote sensing.

Chapter 2: Quick Start Guide

IT8700 Series Introduction

Front Panel Interface

Description of the VFD display, mainframe, and module panels.

Rear Panel and System Self-Test

Chapter 3: Panel Operation and Controls

Mainframe Panel Operation

How to operate the mainframe using its front panel keys.

Mainframe Keyboard Functions

Menu Navigation and Configuration

Overview of menu options for configuring working modes and parameters.

Module Panel Operations

Description of front panel controls for single and dual-channel modules.

External Triggering

Chapter 4: Operations and Modes

Local vs. Remote Operation Modes

PC Control Connection Setup

Operating Modes

Detailed explanation of CC, CR, CV, and CW operating modes.

Advanced Operation Modes

Explanation of compound modes and setting operational modes.

Transient Operation

Description and setup of continuous, pulsed, and toggled transient operations.

List and Trigger Operations

How to set up list mode and configure triggered operations.

Protection and Data Management

Details on protection functions and saving/recalling settings.

Automatic Test Function Setup

Chapter 5: Product Specifications

Main Technical Parameters

Detailed technical specifications for various IT8700 models.

Chapter 6: Remote Operation Interfaces

RS232 Interface Configuration

How to connect and communicate using the RS232 interface.

Ether Net Interface Configuration

USB Interface Configuration