Overview

The Electrocorder LS-1V is a single-phase voltage interruption logger for recording when supply voltage is present or absent over time.

Use it when the key question is not detailed voltage variation, but when the supply is on or off. The LS-1V records the dates and times when voltage is above or below a user-defined threshold, making it useful for power interruption studies and equipment on/off cycle monitoring.

Best for:

• Long-term power supply interruption monitoring.
• Recording periods when grid voltage is present or absent.
• Monitoring equipment duty cycles, such as compressor or motor on/off periods.
• Checking intermittent supply availability in remote or unreliable supply areas.
• Simple event-style voltage presence logging.

Consider another model if:

• You need detailed voltage levels, dips and swells, where the EC-1V or EC-2V may be more appropriate.
• You need voltage and current together, where the EC-2VA, CT-2VA or EC-7VAR-RS may be a better fit.
• You need three-phase voltage monitoring, where the EC-3V or SL-3V may be more appropriate.

What you get:

• LS-1V logger.
• Voltage lead, USB lead, carry case, batteries, user instructions and free Electrosoft analysis software.
• A voltage interruption logger for recording on/off periods against a user-defined threshold.

Set up the logger in Electrosoft, plug it into the monitored supply, then start recording. When enough data has been captured, disconnect the logger, connect it to a PC by USB and use Electrosoft to view, save, export and report on the results.

Applications

Typical applications: The LS-1V is intended for voltage presence and interruption studies rather than detailed voltage quality analysis.

What the LS-1V records:

• Dates and times when voltage is above the configured threshold.
• Dates and times when voltage is below the configured threshold.
• Power supply interruption periods.
• Equipment voltage on/off cycles where voltage presence indicates operation.

Why constant sampling matters: many instruments only take periodic snapshots. The Electrocorder continuously samples throughout the averaging period, helping capture short events, changing loads and trend data that can otherwise be missed.

Recording duration depends on the configuration and the interruption study being carried out. It is intended for long-term evidence of supply availability or equipment cycling.

When fitted with the appropriate plug or voltage lead arrangement, the LS-1V can be used as a simple plug-in interruption logger.

Case Studies

These related Electrocorder case studies, application pages and articles show how this type of logging is used in practical investigations.

Cycling of Closed Loop Control Systems
A knowledge page about using recorded data to understand cycling behaviour in controlled systems.

Machines or Equipment Resetting
An article about using recorded electrical evidence to investigate resets and intermittent operating problems.

Some Electrocorder Recording Facts
An article explaining practical facts about Electrocorder recording and how the data is captured.

Resources

Documentation:
Download the LS-1V datasheet and user instructions for detailed technical information, installation guidance and operating instructions.

	Datasheet
	User Instructions (English)

Free Electrosoft PC software
Electrosoft is compatible with Windows 11 down to Windows 7. It lets you view and zoom current, power and energy graphs, export data to Microsoft Excel, email results to colleagues, and print or save reports as PDF files with your company logo.

Electrosoft includes statistics, load balancing, tariff and costing analysis, annual CO2 and energy usage projections, logger management and calibration management tools. Sample files are included so you can try the software without having a logger connected.

Download Electrosoft PC software

Features

When to choose the LS-1V
Choose this model when the investigation is about supply presence, supply interruption or equipment on/off timing rather than detailed voltage level analysis.

Compare with related Electrocorder models
If you need detailed voltage level data, consider EC-1V or EC-2V. If voltage and current together are needed, consider EC-2VA, CT-2VA or EC-7VAR-RS.

Key features:

• Records voltage on/off periods against a user-defined threshold.
• Useful for supply interruption studies and equipment duty-cycle checks.
• Simple plug-in style use where the correct voltage lead or plug is supplied.
• Data includes dates and times of voltage presence and absence.
• Designed for long-term interruption evidence rather than full power analysis.

Measurement note
The LS-1V is an interruption logger. It is not intended to replace a full voltage quality recorder when detailed voltage level, dip or swell data is required.

Included with your single-phase voltage interruption logger:

• LS-1V logger.
• Voltage lead, USB lead, carry case, batteries, user instructions and free Electrosoft analysis software.
• A voltage interruption logger for recording on/off periods against a user-defined threshold.

Determining product order codes:

To specify your Electrocorder select various codes and enter into the boxes in order to create an accurate product code. For example: LS-1V-5H-UK-IP65-SET.

FAQ

What does the LS-1V record?
It records when voltage is above or below a user-defined threshold, with dates and times.

Is it the same as an EC-1V?
No. The EC-1V records voltage levels. The LS-1V is focused on voltage presence and interruption events.

Can it monitor equipment cycling?
Yes. If voltage presence indicates equipment operation, it can record on/off timing.

Can it help with unreliable supply investigations?
Yes. It can record long-term periods when supply voltage is present or absent.

What software is used to analyse the data?
Electrosoft PC software is used to configure the logger, download recorded data, view data and create reports.