LogoLogo
qoitech.com
  • Welcome
  • Otii PRODUCT SUITE
    • Overview
      • What’s included
    • Otii hardware
      • Otii Arc Pro
      • Otii Ace Pro
    • Otii software
      • Otii 3 Desktop App
      • Otii Toolbox
        • Otii Battery Toolbox [BT]
        • Otii Automation Toolbox [AT]
  • Otii SETUP
    • Connecting Otii hardware
      • Otii hardware overview
        • Otii Arc Pro overview
        • Otii Ace Pro overview
      • Wiring up
        • Expansion Port
        • Measuring DUT
        • Measuring a subsystem
        • External power source
        • Capture UART logs
    • Installing Otii software
      • Windows 10/11 setup
      • macOS setup
      • Ubuntu setup
      • Raspberry Pi setup
    • Getting started
      • Account & licensing
        • Activation & Licensing
        • Managing Licenses
      • User interface overview
        • Main window layout
        • Keyboard navigation
      • Support resources
  • Otii 3
    • Settings overview
    • Working with projects
      • Project storage
      • Create a new project
      • Save & open a project
      • Import an Otii 2.0 project
      • Export recordings as CSV
    • Control
      • Otii Arc/Ace setup
      • General settings
      • Channels
      • UART
      • Firmware management
      • Calibration
    • Recordings
      • Recording management
      • Recording tools
      • Recording viewers
        • Analog
        • Digital
        • Log
    • Measurements
    • Battery life estimator
    • Otii Battery Toolbox
      • Battery emulation
      • Battery profiler
        • Getting started with battery profiling
      • Battery validation
      • Battery Model Parameters
    • Otii Automation Toolbox
      • Otii TCP Server
      • Otii 3 Desktop App
      • Otii Server
      • User management
    • Additional features
      • User management
      • Show monitor
      • Notifications
    • Online account manager
  • Advanced guides
    • Python scripting
    • C# scripting
    • Jenkins integration
  • HELP & FAQ
    • FAQ
      • Otii Arc Pro
      • Otii Ace Pro
    • Revision history
  • Legal information
    • Product safety
    • Liability disclaimer
Powered by GitBook
On this page
  • Supply mode
  • Over current protection
  • Digital voltage
  • Main current
  • ADC resistor

Was this helpful?

Export as PDF
  1. Otii 3
  2. Control

General settings

PreviousOtii Arc/Ace setupNextChannels

Last updated 11 months ago

Was this helpful?

The Otii hardware can be set up with the following configurations in the General Settings section:

Please note that there are some differences in settings between the Otii Arc Pro and Otii Ace Pro.


Supply mode

  • Power Box: The Otii hardware will supply a constant voltage to the Device Under Test (DUT).

  • Battery emulator: Otii hardware will emulate a battery. (Only available with Battery Toolbox)

Over current protection

The OC current protection setting allows users to set a maximum current limit that the Otii hardware can supply. For the Otii Arc, if the current exceeds the assigned limit, the unit will switch OFF the main supply to protect the DUT.

Within the dropdown, choose among the available options how the current limits must be detected, along with expected device behavior:

  • Limit: enabled for Otii Arc Pro and Otii Ace Pro, it limits the output current to the set current, lowering the output voltage.

  • Cut-off: enabled only for the Otii Arc Pro, it detects when the current exceeds the set current to turn the power OFF and open the output relay.

Digital voltage

Some configurations in this section differ based on the version of Otii hardware used.

Otii Arc Pro

Otii Ace Pro

Main current

The main current enables the Otii hardware to switch automatically between the different measurement intervals.

  • Auto range: when selected, the highest available measurement accuracy interval is selected.

  • High range: when selected, it prevents the Otii hardware from going to the lowest measurement range. Therefore, there is no switch in or out of the shunt resistor.

    • Use this setting if the device resets when the Otii hardware switches measurement interval.

    • Use this setting if higher voltage output is needed for Otii Arc Pro, as the voltage drop internally within this Otii hardware version is lower.

Otii Arc cannot supply above 3.75V in USB mode and 4.55V when supplied with DC plug when selecting auto range. In high range, it can supply 4.2V in USB mode and 5.0V when supplied with DC plug. Note, Otii Ace can supply the full voltage range both in USB mode and when supplied with DC plug.

ADC resistor

In-line: This particular mode is exclusive to the Otii Ace Pro version. It by being in-line between the power source and the DUT. The Otii Ace Pro automatically switches between different measurement ranges but provides no power. To also measure voltage, 4-wire must be enabled.

The digital voltage setting allows the output voltage desired for the pins available within the to be set up. Also, depending on the digital voltage setting, the level for deciding if it is a logical 0 or 1 is also changed.

- enable digital outputs

- enables an additional fixed 5V output

- enables 4-wire measurements to compensate for voltage drop in the power supply leads.

- Enables an additional voltage output ranging from 0 to 15V.

- enable digital outputs

- enables 4-wire measurements to compensate for voltage drop in the power supply leads.

When using the ADC pins to measure the current of a specific system, an external shunt resistor is required. Therefore, the resistance must be set. To ensure that the resistor impedance is set correctly, refer to the "" example; this example will guide you through connecting the DUT to the ADC connectors and setting the .

works like an ampere meter
expansion port
Measuring a subsystem
Supply mode
OC protection
Digital voltage
Main current
ADC resistor
impedance of the resistor
GPO1 & GPO2
5V
4-wire
0-15V
GPO1 & GPO2
4-wire
Otii 3 Desktop App | General Settings
Otii supply mode options
Over current (OC) protection feature
Otii Arc Pro digital voltage settings
Otii Ace Pro digital voltage settings