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Gemini Tinytag Energy Logger Technical Manual

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Summary of Contents for Gemini Tinytag Energy Logger

  • Page 3: Table Of Contents

    Contents Contents Warnings and PAT Testing Instructions Introduction In the Case Controls and Connections Logger Display Logger Markings Quick Start Modes of Operation: Single Phase Current Three Phase Current Single Phase Current and Voltage Three Phase Current and Voltage 12.1 Positioning Coils 12.2 Screen Messages 12.3 Manual Configuration Data Logging...

  • Page 4: Warnings And Pat Testing Instructions

    Do not exceed the maximum rated input voltage for the logger. • The current measurement inputs must only be connected to approved flexible coil current transducers, Gemini part number ACS-002X. Any other type of connection may damage the logger and expose the user to hazardous voltages.
  • Page 5 • This equipment should be used within the temperature range and other environmental conditions specified in this manual. • Voltage Range 230V ±10% • Mains Transient Overvoltage Category II, 2.5kV • Measurement Category IEC61010: 2001 CAT II • Operating Temperature 0 to +50°C •...

  • Page 6: Introduction

    The logger is ideal for monitoring building energy supply, sections within a building or individual pieces of equipment. Data from the Tinytag Energy Logger can be used to identify power-hungry or inefficient equipment and peak load times, and can highlight equipment that is left powered up or idling unnecessarily.

  • Page 7: In The Case

    In the Case The following items are supplied in the carry case: • 1 x TGE-0001: Tinytag Energy Logger • 3 x ACS-0020: Clip on coil • 1 x SWCD-0090: Tinytag Explorer software • 1 x CAB-0030: UK mains lead (TGE-0001-UK) •...

  • Page 8: Controls And Connections

    Controls and Connections PC interface connection (USB “B” Socket) Mains input Display Control buttons Coil connections (for ACS-002X coils) Buttons Function: Allows you to step through the different wiring configurations the logger supports Record: Starts and stops the data logger recording Scroll: Allows you to scroll through current, voltage and power readings from the logger...

  • Page 9: Logger Display

    Logger Display 1. Wiring Configuration This shows the different wiring configurations supported by the logger. To step though them, press the Function button. 2. Prompts and Error Messages When a wiring configuration is selected, the logger will show prompts in this area of the display to tell the user what needs to be plugged in next.

  • Page 10: Logger Markings

    Data loggers, accessories and batteries should be disposed of at organised facilities, where available, in line with local regulations. In accordance with the WEEE directive Gemini Data Loggers (UK) Ltd. will take back and dispose of any equipment purchased directly.
  • Page 11 USB CONNECTION Indicates the position of a USB B socket, on the side of the logger, to connect it to a computer to configure and recover data from it. EARTH Indicates the position of the logger’s earth connection. MAGNET This product is fitted with a strong magnet to attach the unit to panels whilst in use.

  • Page 12: Quick Start

    Quick Start Starting an Energy Logger Insert the supplied batteries in logger, observing the correct polarity. Press any of the loggers three buttons to wake it up. Select the wiring configuration to be monitored by pressing the function button. Follow the on-screen prompts and plug in the current coils and mains lead as directed.

  • Page 14: Modes Of Operation

    Modes of Operation: Single Phase Current Set-up For monitoring single-phase current where no mains connection is available. In this mode the logger will be powered by its batteries, and will be able to log for a minimum of two months. Instructions •...

  • Page 15: Three Phase Current

    Modes of Operation: Three Phase Current Set-up For monitoring three-phase current where no mains connection is available. In this mode the logger will be powered by its batteries, and will be able to log for a minimum of two months. Instructions •...

  • Page 16: Single Phase Current And Voltage

    Modes of Operation: Single Phase Current and Voltage Set-up For monitoring single-phase current with a voltage reference. In this mode the logger will be powered from the mains, and will be able to log for six weeks before it fills its memory at the default five minute logging interval.

  • Page 17: Three Phase Current And Voltage

    Modes of Operation: Three Phase Current and Voltage Set-up For monitoring three-phase current with a voltage reference. In this mode the logger will be powered from the mains, and will be able to log for six weeks before it fills its memory at the default five minute logging interval.
  • Page 18 Modes of Operation: Three Phase Current and Voltage (cont.) Set-up (cont.) • Clip the coils around the correct conductors. For recommendations on coil positioning, see page 20. • Wait for the logger to complete a self check, adjusting the position of coils if prompted. For information on screen messages, see page 20.

  • Page 19: Positioning Coils

    12.1 Modes of Operation: Three Phase Current and Voltage Positioning Coils Automatic Configuration Before logging can be started the logger has to determine which current phase the voltage reading is being derived from. For the automatic configuration to work successfully, the current coils need to be separated correctly.
  • Page 20 12.1 Modes of Operation: Three Phase Current and Voltage Positioning Coils Care should be taken when positioning coils during the set up of the logger to ensure they are well spaced, don’t overlap or are placed too closely to neighbouring conductors.
  • Page 21 When separating coils, move them holding the grey cable. Holding the green part of the coil may affect the set up. Ensure coils are not positioned next to secondary conductors from the other phases. Once the logger has automatically configured and logging has been started, the position of the coils is no longer important and as long as they are left around the conductors they were configured to the logger will record correctly.

  • Page 22: Screen Messages

    12.2 Modes of Operation: Three Phase Current and Voltage Screen Messages Battery Low The batteries in the logger need replacing. Checking Coils... This error message shows for a few seconds after clearing the “Plug in I1, l2 or l3” message. Clip I1, I2, and I3 A three-phase current configuration is selected and one or more of the coils have not been clipped around a conductor.
  • Page 23 Plug in I1, I2, or I3 This error messages indicate that one or more coils are not connected to the logger. Proximity I1 and I2 A three-phase current and voltage configuration is selected. This message indicates that two (or maybe all three) coils appear to be correlated with the same conductor.

  • Page 24: Manual Configuration

    12.3 Modes of Operation: Single Phase Current and Voltage Manual Configuration In some applications, such as those where conductors are armoured, the logger may fail to configure automatically. In these instances, it may still be possible to get it to configure. Phase Matching Diagram This is a tool that may help to visualise the separation of coils that are too close to each other.
  • Page 25 If this is not the case, try separating the coils further from their neighbouring conductors. Once the coils are in the shaded areas, and the error messages have disappeared, the record button can be pressed to start the data logger recording. Once the logger is logging, the coils simply need to be kept around the correct conductor.
  • Page 26 12.3 Modes of Operation: Single Phase Current and Voltage (cont.) The mains connection and relative order information is shown on the left-hand side of the screen, whilst the readings from the current configuration are shown on the right. Pressing the function key will step the logger through six different configurations: •...

  • Page 27: Data Logging

    Data Logging Data Logging The energy logger can be started and stopped multiple times without needing to connect it to a computer. Starting a Logger Once a logger has been connected, pressing and holding the logging button will start it recording. On screen prompts will confirm the logger has started, and a logging icon will be shown on the display.

  • Page 28: Tinytag Explorer

    Tinytag Explorer Tinytag Explorer The Tinytag Explorer software is used to reconfigure an energy logger and to view recorded data. The following takes you through the process of installing Tinytag Explorer, the basics of configuring an energy logger and downloading the data recorded by it. Once Tinytag Explorer has been installed, you can find further information in the software’s Help file by going to Help and Contents.
  • Page 29 Starting Tinytag Explorer To start Tinytag Explorer, click on the desktop icon for the software: If you didn’t create a desktop icon when installing the software, you can start the software by going to: Start >> All Programs >> Tinytag Explorer 4.8 >> Tinytag Explorer Activating Tinytag Explorer The first time you run Tinytag...
  • Page 30 Tinytag Explorer (cont.) Offloading Data Because the energy logger can be used to record multiple runs, it displays multiple files, one for each recording session, so the user can chose what data they wish to view. In the download window that opens when the Get Data option is selected in Tinytag Explorer, only new data, that has not been downloaded before, is shown by default.
  • Page 31 Old data files are shown fainter than ones that have not been downloaded before. Viewing Data When data is downloaded from an energy logger, a trace selector will appear on the left hand side of the screen. Expanding this selector and checking and un-checking the different boxes will allow different properties to be displayed.
  • Page 32 Tinytag Explorer (cont.) Configuring an Energy Logger To configure an energy logger, to change how often a unit records, or to clear old readings from a unit, click the Configure icon: The first time you start a data logger, you will be presented with the Basic Settings view.
  • Page 33 Logging Interval The Logging Interval option enables you to set how often an energy logger will record (the minimum interval is 30 seconds). Overwrite Overwrite allows you to chose what happens when a logger fills its memory. If Run indefinitely is selected, the logger will overwrite its oldest readings when it fills its memory, meaning that only the most recent data recorded will be retained.

  • Page 34: What Does The Logger Record

    What Does the Logger Record?
  • Page 35 Display The logger’s display shows instantaneous RMS current (A) from all three phases, the instantaneous RMS voltage (V), an instantaneous overall power figure (kW) and power factor information for all three phases. Automatic Software Calculations When data is downloaded in the Tinytag Explorer software, the following information is calculated and displayed: •...

  • Page 36: How The Energy Logger Works

    How the Energy Logger Works Voltage Mains voltage is measured by direct connection to the mains supply. The data logger samples the voltage signal at 1kHz for 100ms to calculate RMS voltage and true power. Current Current is measured using flexible rogowski coils. They measure the current passing through the conductor which they are wrapped around.
  • Page 37 Average and Peak The 100ms burst of readings is repeated every two seconds (this is reduced to every five seconds if logging on batteries, to conserve battery power). The Average Power trace shown in Tinytag Explorer is the average value over the 5 minute logging interval - an average of 150 true power calculations.

  • Page 38: Logging Specification

    Logging Specification Logging Interval 30 seconds to 10 days Reading Capacity Six weeks at the default 5 minute logging interval...

  • Page 39: Measurement Specification

    Measurement Specification Range Current 2,000A AC RMS (Momentary peak surge current: 2x rated range) Voltage 200-253V AC nominal Frequency Nominal 50/60Hz Display Resolution Current 0.1A Voltage 0.1V Power 0.1 or 0.01kW depending on the size of the load being measured. Accuracy Current (RMS)* 1% of reading ±0.5A (above 10A)

  • Page 40: Physical Specification

    Physical Specification Logger Operational Temperature Range 0 to +50°C Maximum Humidity 95% (non-condensing) Maximum Altitude 3,000m For indoor use only! Pollution Degree IEC61010:2001 Pollution degree 2 Case Dimensions Length 195mm Width 102mm Depth 50mm Weight (Including batteries) 600g Coils Coil Thickness (Diameter) Internal Loop Diameter 85mm (typical) Cable Length...

  • Page 41: Maintenance And Service Instructions

    Maintenance & Service Instructions Maintenance Energy loggers can be cleaned as follows: Remove all leads and cables from the logger. Wipe the case with a moist cloth using a mild detergent. Allow to dry. Do not allow liquids to enter the case or connectors. Do not use abrasive materials or solvents.

  • Page 42: Battery Information

    Battery Information Battery Type 4 x 1.5V AA Alkaline Batteries Battery Life 60 days, typical, based on a battery capacity of 2500mAH* When fitting batteries, observe the correct polarity. *When a mains lead is plugged in, the logger will be mains- powered.

  • Page 43: Approvals And Warranty

    Approvals and Warranty Approvals Gemini Data Loggers (UK) Ltd. operates Quality and Environmental Management Systems which conform to ISO 9001 and ISO 14001. The scope of these systems covers the manufacture, design and supply of data loggers and their associated software, accessories and services.
  • Page 44 Designed and Manufactured by: Gemini Data Loggers (UK) Ltd. Scientific House, Terminus Road, Chichester, West Sussex, PO19 8UJ England. www.tinytag.info +44 (0)1243 813000 +44 (0)1243 531948 sales@tinytag.info...

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