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Accsence VersaLog User Manual

Multi-channel data loggers
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VersaLog
12628 Chillicothe Rd., Unit J
Chesterland, Ohio 44026
Phone: 440-729-2570
Multi-Channel Data Loggers
User's Manual
Accsense VersaLog
12628 Chillicothe Rd., Unit J
Chesterland, Ohio 44026
Toll Free:
800-956-4437
www.dataloggerinc.com
Toll Free: 800-956-4437
Fax: 440-729-2586
Email:
support@dataloggerinc.com
Web:
http://www.dataloggerinc.com

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Summary of Contents for Accsence VersaLog

  • Page 1 Toll Free: 800-956-4437 12628 Chillicothe Rd., Unit J Fax: 440-729-2586 Chesterland, Ohio 44026 Email: support@dataloggerinc.com Phone: 440-729-2570 VersaLog Web: http://www.dataloggerinc.com Multi-Channel Data Loggers User’s Manual Accsense VersaLog 12628 Chillicothe Rd., Unit J Chesterland, Ohio 44026 Toll Free: 800-956-4437 www.dataloggerinc.com...

  • Page 2: About This Manual

    The manual contained in this document is furnished for informational use only and is subject to change without notice. Accsense VersaLog shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
  • Page 3 Non-defective Product Return: Products that are not defective may be returned to ACCSENSE VERSALOG within 30 days from the date of shipment. All non-defective product returns are subject to a 20% restocking fee. If the product is unsatisfactory for the application for which it was purchased, ACCSENSE VERSALOG shall, at its option, either refund the purchase price paid by the Buyer or replace the product with one that is satisfactory for the application.

  • Page 4: Table Of Contents

    What is a Strain Gauge ......................21 Quarter Bridge Circuit: ......................21 Half Bridge Circuit: ......................... 21 Full Bridge Circuit: ......................... 22 Connect Strain Gauge to a Data Logger ................. 22 Channel and Sensor Specifications: ..................25 Accsense VersaLog Data Loggers User’s Manual Page 3...
  • Page 5 Time to Start & Time to End ....................55 Total Time Span ........................55 Enabled ............................ 55 Channel Range ......................... 55 Description ..........................55 Equation ........................... 55 Cali. Low & Cali. High ......................56 Accsense VersaLog Data Loggers User’s Manual Page 4...
  • Page 6 Settings ............................. 63 ........................ 63 ALIBRATE A HANNEL Understand Cali. Low & Cali. High ..................63 Decide On-Line or Off-Line Calibration ................. 64 6. SPECIFICATIONS........................68 ......................68 OMMON PECIFICATIONS ........................69 OGGING APACITY Accsense VersaLog Data Loggers User’s Manual Page 5...

  • Page 7: Introduction

    The alarm control outputs can be used to turn on/off external alarm devices such as strobe lights, sirens or alarm telephone diallers. Accsense VersaLog data loggers also have an excitation control output used to switch the power supply of the external transducer/transmitter.

  • Page 8: 1.3 Care Of The Logger

    2004/108/EC Electromagnetic compatibility (EMC)  All Accsense VersaLog Series data loggers comply with Part15 of the FCC Rules. Operation is subject to the following two conditions: 1. These devices may not cause harmful interference, and 2. These devices must accept any interference received, including interference that may cause undesired operation.

  • Page 9: 1.6 Recalibration

    1.6 Recalibration Any Accsense VersaLog data logger is supplied with all channels pre-calibrated and should not require any further recalibration for a period of 12 months. We recommend the logger be recalibrated every year. You may recalibrate the logger longer than a year depending on your application standard.

  • Page 10: Hardware & Mechanical Dimension

    & & Logger Diagram: For Model VL-DCV-2, VL-DCC-HR, VL-DCVC-HR, VL-TC, VL-TH: Accsense VersaLog Data Loggers User’s Manual Page 9...

  • Page 11: Channels And Sensor Connections

    88 X 64.2 X 24 MM 3.46 X 2.53 X 0.95 Inches All Accsense VersaLog data loggers have one on-board thermistor located beside the status LED. All “COM” terminals are connected together and should be connected to the common ground of the process signals.

  • Page 12: Channel And Sensor Specifications

    Besides the on-board thermistor channel, VL-DCC-HR logger has seven external current DC channels used to measure single-ended current DC signals maximum of 20 mA. The following figure illustrates the correct input connections: Accsense VersaLog Data Loggers User’s Manual Page 11...

  • Page 13: Channel And Sensor Specifications

    The first four external channels are used to measure single-ended voltage maximum of 20 VDC and the remaining three external channels are used to measure single- ended current DC signals maximum of 20 mA. The following figure illustrates the correct input connections: Accsense VersaLog Data Loggers User’s Manual Page 12...

  • Page 14: Channel And Sensor Specifications

    Besides the on-board thermistor channel, the VL-DCVC logger has seven external voltage and current channels. The first four external channels are used to measure single-ended voltage maximum of 20 VDC and the remaining three external channels are used to measure single- Accsense VersaLog Data Loggers User’s Manual Page 13...

  • Page 15: Channel And Sensor Specifications

    +/- 0.5% FSR @ 25°C from 0 to 2.5 mA Load Resistor For current channel: 12 Ohms Voltage channel: -3VDC - 40 VDC Protection Current channel: +/-100 mA VL-TC – Thermocouple Inputs, Range Programmable Accsense VersaLog Data Loggers User’s Manual Page 14...

  • Page 16: Channel And Sensor Specifications

    Based on the thermocouple type you want to use and the desired temperature range you want to measure you can select one of four channel’s available ranges and the correct factory thermocouple equation: Accsense VersaLog Data Loggers User’s Manual Page 15...

  • Page 17: Vl-Th - Thermistor / Resistor Inputs

    Besides the on-board thermistor channel, the VL-TH logger has seven external channels used to measure the external thermistors or resistors. The following figure illustrates the correct input connections: Thermistor A2/E Thermistor External Input Connections Note: All inputs must share the same common ground. Accsense VersaLog Data Loggers User’s Manual Page 16...

  • Page 18: Channel And Sensor Specifications

    +/- 0.2% FSR @ 25° Measure Resistance: Accsense VersaLog provides factory resistance equation for measuring the resistor’s value. Based on the range you want to measure you can select either >8 Kohms, between 2 and 8 Kohms or from zero to 2 Kohms. In Configuration dialog: Change Channel Type/Input Range to the one best fits your measuring range.
  • Page 19 “Temperature” in “Equation” column: Then you need to change temperature coefficient values by clicking “Change Coefficients” button in “Action” column: In the pop-up dialog enter new temperature coefficient values and click “OK” button. Accsense VersaLog Data Loggers User’s Manual Page 18...
  • Page 20 You can also use a custom equation to do the same job or even more complicated calculation. An example of external thermistor equation is included in the Accsense VersaLog package. When you create your own equation you can refer to this equation and replace those temperature coefficients with the ones obtained from the thermistor manufacturer.

  • Page 21: Vl-Br-- Excitation/Sense Input, Voltage Input, Fixed Range

    RANGE The VL-BR is a single channel, battery powered, stand-alone strain gauge bridge data logger. It supports 4/6 wheatstone bridges by providing voltage excitation, excitation voltage compensation and low level signal amplification. Accsense VersaLog Data Loggers User’s Manual Page 20...

  • Page 22: What Is A Strain Gauge

    If the dummy gauge in the above figure is replaced by an active gauge, as shown below, the resulting arrangement is called a half bridge. The half bridge has advantages for temperature Accsense VersaLog Data Loggers User’s Manual Page 21...

  • Page 23: Full Bridge Circuit

    Connect Strain Gauge to a Data Logger iLog Srtrain Gauge/Bridge data logger supports six-wire configuration when connecting to a wheatstone bridge circuit. The following wirings are for SiteView built-in Strain Gauge equations: Wiring for Quarter Bridge Circuit: Accsense VersaLog Data Loggers User’s Manual Page 22...
  • Page 24 Wiring for Half Bridge Circuit: This circuit is for equation “HalfBridge”. When configure the logger, choose “HalfBridge” equation and click “Change GF” to change the Gauge Factor. Wiring for Full Bridge Circuit: Accsense VersaLog Data Loggers User’s Manual Page 23...
  • Page 25 = -Vo / (Vex * GF); return strain; /* this block is for quarter bridge circuit */ double strain = -4 * Vo / ((2 * Vo + Vex) * GF); return strain; Accsense VersaLog Data Loggers User’s Manual Page 24...

  • Page 26: Channel And Sensor Specifications

    ± 0.2% @ 25°C VL-P – State/Event/Pulse Inputs, Range Programmable VersaLog P is a 7-channel, battery powered, stand-alone pulse/state/event data logger. The logger detects electronic or mechanical pulse counts, state changes or events in any of the seven channels. Data is stored in non- volatile flash memory for later retrieval. It works with gas/water/power meter, rain gauge, flow rate meter and any other digital signal/switch closure output devices.
  • Page 27 Each channel can be configured as either stage, event or pulse channel based on applications. For Event and Pulse configuration, each channel’s trigger detection can be configured between Normal Open (High to Low) Accsense VersaLog Data Loggers User’s Manual Page 26...

  • Page 28: Vl-Rtd-1 (For Pt100)

    TTL signal. VL-RTD-1 (for PT100) Besides the on-board thermistor channel, VL-RTD-1 logger has four external channels used to measure the external RTD sensors. The following figure illustrates the correct input connections: Accsense VersaLog Data Loggers User’s Manual Page 27...

  • Page 29: Channel And Sensor Specifications

    R0 = 100; //A custom equation. Do not change equation name. Equation must return a value. public double RTDEquation(double Input) //Input is resistance in Ohm double r = Input; double Accsense VersaLog Data Loggers User’s Manual Page 28...

  • Page 30: Basic Functions

    An equation is a software functionality identified by its name of up to 16 characters. A built-in equation is an equation provided by VersaLog SiteView software to convert a measurement for a specific channel type.

  • Page 31: Measuring & Logging

    Accsense VersaLog data loggers use a group of preset parameters to decide when and how to take in data and save it to the memory. Those parameters can be configured by VersaLog...

  • Page 32: End Time

    Downloading Data The data in the logger can be transferred to the computer by VersaLog SiteView software. If the logger is not in Fast Sampling mode, the data can be downloaded any time even when the logger is still recording.
  • Page 33 1. With the VersaLog SiteView software, open the configuration dialog of the logger, and set the start time to any time the desired start time will never reaches. Click OK button to save new settings to the logger. 2. The logger is now in Start Delay mode. When you need to activate the logger, press and hold the Activation button on the logger.

  • Page 34: Status Led

    The Accsense VersaLog logger has an on-board LED used to indicate: 1. Sampling: When the LED was enabled by Accsense VersaLog, it will flash once in green when the logger is sampling. The colour of the LED can be overridden by the following conditions: 2.

  • Page 35: Alarm Output

    When the logger is in alarm state, Alarm1 and/or A2/E terminal strips can be configured by Accsense VersaLog to be activated certain time after an alarm was triggered. The delay time selections are: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 minutes.
  • Page 36 If the alarm device needs more power to drive, A1 provides control signal to drive a coil relay as follows: Strobe Light / Siren Power Supply +12 VDC Coil Relay A2/E Alarm1 is used as switch of the power supply. Accsense VersaLog Data Loggers User’s Manual Page 35...

  • Page 37: Excitation Output

    It turns on the transducer only when it samples the data and turns off the transducer after the sampling. A2/EXT on the terminal strips can be configured by VersaLog SiteView software for excitation output purpose.

  • Page 38: Software

    Windows XP with SP2 or above, Windows Vista, Windows 7, Windows 8 Communications Interfaces The Accsense VersaLog logger has both TTL-compatible serial port and USB interface. It can communicate with host device via either USB or serial port. The following schematics illustrate different options that VersaLog SiteView software can communicate with a data logger.
  • Page 39 Serial Port Connection Ethernet Connection (with Site USB Device Server) Accsense VersaLog Data Loggers User’s Manual Page 38...

  • Page 40: Install Accsense Versalog

    CD. 2. Install VersaLog SiteView. Insert the included CD to the CD Drive. The installation should start to run automatically. Follow the on-screen instructions to complete the installation. Accsense VersaLog Data Loggers User’s Manual Page 39...
  • Page 41 Click “Next >” button to proceed to the next page. Please read the License Agreement carefully. If you accept the terms click “I Agree”, then click “Next >” button. Otherwise click “Cancel” to cancel the installation. Accsense VersaLog Data Loggers User’s Manual Page 40...
  • Page 42 In this dialog select a destination folder where VersaLog SiteView will be installed. We recommend you keep the default folder. Once you are ready, click “Next >” button to proceed to the next page. Accsense VersaLog Data Loggers User’s Manual...
  • Page 43 This confirmation page gives you the chance to modify previously selected options. Click “Next >” button to start the installation. Accsense VersaLog Data Loggers User’s Manual Page 42...
  • Page 44 As VersaLog SiteView is being installed the above dialog shows the installation progress by percentage. Once the installation is complete, the below dialog appears: Accsense VersaLog Data Loggers User’s Manual Page 43...

  • Page 45: Install Usb Driver

    Click “Close” button to finish the installation and close the dialog. Install USB Driver Upon the completion of the above steps, the Site-View USB Driver Installation dialog will start automatically. Accsense VersaLog Data Loggers User’s Manual Page 44...

  • Page 46: Connect Data Logger

    For Windows XP users, the following dialog window will appear: Select "No, not this time" from options available and then Click "Next >" to proceed with the installation. Accsense VersaLog Data Loggers User’s Manual Page 45...
  • Page 47 Select "Install the software automatically (Recommended)” as shown in the above figure and then click "Next >". Accsense VersaLog Data Loggers User’s Manual Page 46...
  • Page 48 Select the item with Manufacturer of Accsense VersaLog and click “Next>” to proceed. In the following message dialog, click "Continue Anyway" to continue with the installation: The screen below will be displayed as Windows copies required driver files: Windows should then display a message indicating the installation was successful: Accsense VersaLog Data Loggers User’s Manual...

  • Page 49: Activate Accsense Versalog

    Activate Accsense VersaLog After the installation Accsense VersaLog needs to be activated by entering Product Key you obtained when you bought Accsense VersaLog. If the above installation of VersaLog SiteView was successful, VersaLog SiteView can be launched by either one of the following methods:...
  • Page 50 Enter the Product Key, then click the Activate button. If the Product Key is accepted the following confirmation dialog will appear: Click OK button to finish the activation. From now you can start using VersaLog SiteView. Accsense VersaLog Data Loggers User’s Manual...

  • Page 51: Main Window Frame

    Main Working Panel The Main Working Panel contains a series Tab pages for logger status and the graph information illustrated as the follows: Accsense VersaLog Data Loggers User’s Manual Page 50...

  • Page 52: Information Log Panel

    Information Log Panel This section shows the information logs for any activities Accsense VersaLog does. This is for diagnostics and information purposes. View Logger Status This manual will use USB as an example of communications interface. For other communications interfaces please refer to Accsense VersaLog User’s Manual available for download online.

  • Page 53: General

    This sub tab page displays the general properties of the logger. Alarm & Excitation This sub tab page displays the properties regarding the alarm and excitation. By clicking the “Alarm & Excitation” tab page caption, the following page will appear: Accsense VersaLog Data Loggers User’s Manual Page 52...

  • Page 54: Configure Logger

    There are two tab pages in this dialog. The General page is displayed in the above screen shot. If you click Alarm & Excitation tab the following page will appear: Accsense VersaLog Data Loggers User’s Manual Page 53...

  • Page 55: Description

    If you want the logger to stop logging when the memory is full select Stop logging. If you want the logger to continue logging and overwrite the oldest data with the new data (FIFO), you choose Continue logging. Accsense VersaLog Data Loggers User’s Manual Page 54...

  • Page 56: Time To Start & Time To End

    Later when all data are downloaded to a computer, Accsense VersaLog will use equation “VoltageDC” to convert the digital values back to voltage values.

  • Page 57: Cali. Low & Cali. High

    For detailed instructions on how to create a custom equation please refer to the Accsense VersaLog User’s Manual available for download online. Cali. Low & Cali. High These two fields specify the custom calibration values that are used for measurement adjustment.

  • Page 58: Excitation Warm-Up Delay

    Once you have finished making changes to the available settings, you can click OK button to save the settings to the logger. The logger will start to record data from Time to Start you have set. Accsense VersaLog Data Loggers User’s Manual Page 57...

  • Page 59: Download Logger

    Note: clicking on OK or Apply buttons will erase all existing measurements saved in the logger. For a detailed description of each available setting please refer to the Accsense VersaLog User’s Manual available for download online. Download Logger If you are already in logger status tab, clicking on “Download” button will bring up Download dialog window: Started from Site View 3, data can be downloaded to the system database.

  • Page 60: Filename & Browse

    Once you have selected a desired time frame you can click OK button to start the download process. After the download the plot and tabular data will be displayed (If Display plot after download was not checked the plot will not display): Accsense VersaLog Data Loggers User’s Manual Page 59...

  • Page 61: Real-Time Display

    Real-Time Display If the logger is in normal sampling mode (sampling interval is 5 seconds or longer), VersaLog SiteView can view the real-time measurements while the logger is still logging data. The real- time display shows the list of the latest channel real-time measurements, as well as the trend chart of all channel real-time measurements for the past given period of time from the current time.
  • Page 62 Real-Time in Horizontal View Real-Time In Vertical View Accsense VersaLog Data Loggers User’s Manual Page 61...

  • Page 63: Show List

    Click to display the chart and list views vertically. Time Span This field allows changing the time span for the chart view. Available settings are: Dataset Click to display the tabular view of the recorded measurements illustrated below: Accsense VersaLog Data Loggers User’s Manual Page 62...

  • Page 64: Settings

    VersaLog Instruction Manual available for download online. Calibrate a Channel VersaLog SiteView software provides two-point calibration for most of the loggers. Understand Cali. Low & Cali. High In the logger status page, there are two properties for each listed channel called Cali. Low and Cali.

  • Page 65: Decide On-Line Or Off-Line Calibration

    You access On-Line / Off-Line Calibration via Calibrate button on the logger status tool bar. The following dialog appears: Accsense VersaLog Data Loggers User’s Manual Page 64...
  • Page 66 Select the channel you want to calibrate on and click OK button. The calibration dialogs appear as follows: Accsense VersaLog Data Loggers User’s Manual Page 65...
  • Page 67 Accsense VersaLog Data Loggers User’s Manual Page 66...
  • Page 68 The above dialogs are for On-Line Calibration. The above dialog is for Off-Line Calibration. Please refer to Calibrate Logger chapter in Accsense VersaLog User’s Manual for details. Accsense VersaLog Data Loggers User’s Manual Page 67...

  • Page 69: Specifications

    Alarm-Off: MOSFET(N-Channel) switch off Max Power: 200mA @ 24VDC. Accsense With purchase of VersaLog SiteView software, VersaLog can report alarm status to host PC via USB, Modem or Ethernet Device Server. Alarm-On Delay Programmable 0 - 10 minutes delay with 1-minute increment.

  • Page 70: Logging Capacity

    1 minute 181 days 1 second 3 days 10 seconds 242 days 100 ms 58 hours 10 seconds 121 days 100 ms 29 hours 10 seconds 30 days 100 ms 7.2 hours Accsense VersaLog Data Loggers User’s Manual Page 69...

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