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Accsense 

VersaLog Data Loggers User’s Manual

 

 

Page 3

 

TABLE OF CONTENTS 

 

ABOUT THIS MANUAL ................................................................................................................ 1

 

L

IMITS OF 

L

IABILITY AND 

D

ISCLAIMER OF 

W

ARRANTY

: ................................................................ 1

 

C

OPYRIGHT AND 

T

RADEMARKS

 ...................................................................................................... 1

 

1. INTRODUCTION........................................................................................................................ 6

 

1.1

 

F

EATURES OF THE LOGGER

 ........................................................................................................ 6

 

1.2

 

A

PPROVALS

 ............................................................................................................................... 6

 

1.3

 

C

ARE OF THE LOGGER

 ............................................................................................................... 7

 

1.4

 

I

DENTITY OF THE LOGGER

 ......................................................................................................... 7

 

1.5

 

B

ATTERY

 ................................................................................................................................... 7

 

1.6

 

R

ECALIBRATION

 ........................................................................................................................ 8

 

1.7

 

S

AFETY 

W

ARNING

 .................................................................................................................... 8

 

Maximum Input Voltage Range ................................................................................................. 8

 

Maximum Input Current Range ................................................................................................. 8

 

External Power Supply .............................................................................................................. 8

 

Grounding .................................................................................................................................. 8

 

2. HARDWARE & MECHANICAL DIMENSION ..................................................................... 9

 

Logger Diagram: ....................................................................................................................... 9

 

3. CHANNELS AND SENSOR CONNECTIONS ...................................................................... 10

 

VL-DCV-2

 

–

 

V

OLTAGE 

I

NPUTS

,

 

P

ROGRAMMABLE 

R

ANGE

 .......................................................... 10

 

Channel and Sensor Specifications: ........................................................................................ 11

 

VL-DCC-HR

 

–

 

C

URRENT 

I

NPUTS

 ................................................................................................. 11

 

Channel and Sensor Specifications: ........................................................................................ 12

 

VL-DCVC-HR

 

–

 

V

OLTAGE 

&

 

C

URRENT 

I

NPUTS

,

 

R

ANGE 

P

ROGRAMMABLE

 ................................ 12

 

Channel and Sensor Specifications: ........................................................................................ 13

 

VL-DCVC

 

–

 

V

OLTAGE 

&

 

C

URRENT 

I

NPUTS

,

 

R

ANGE 

P

ROGRAMMABLE

 ....................................... 13

 

Channel and Sensor Specifications: ........................................................................................ 14

 

VL-TC

 

–

 

T

HERMOCOUPLE 

I

NPUTS

,

 

R

ANGE 

P

ROGRAMMABLE

....................................................... 14

 

Channel and Sensor Specifications: ........................................................................................ 15

 

Measure Temperature:............................................................................................................. 15

 

VL-TH

 

–

 

T

HERMISTOR 

/

 

R

ESISTOR 

I

NPUTS

 ................................................................................... 16

 

Channel and Sensor Specifications: ........................................................................................ 17

 

Measure Resistance: ................................................................................................................ 17

 

Measure Temperature:............................................................................................................. 17

 

VL-BR--

 

EXCITATION/SENSE

 

INPUT,

 

VOLTAGE

 

INPUT,

 

FIXED

 

RANGE....................... 20

 

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

 

Summary of Contents for VersaLog

Page 1: ...and Ohio 44026 Toll Free 800 956 4437 www dataloggerinc com Multi Channel Data Loggers VersaLog 12628 Chillicothe Rd Unit J Chesterland Ohio 44026 Phone 440 729 2570 Toll Free 800 956 4437 Fax 440 729...

Page 2: ...amages in connection with the furnishing performance or use of this material Copyright and Trademarks This manual contains proprietary information which is protected by copyright All rights are reserv...

Page 3: ...l 2 years of protection at a fraction of the price of a repair 4 Return Policy Defective Product Return A Buyer may return a defective product to ACCSENSE VERSALOG for repair or replacement at ACCSENS...

Page 4: ...E RANGE 10 Channel and Sensor Specifications 11 VL DCC HR CURRENT INPUTS 11 Channel and Sensor Specifications 12 VL DCVC HR VOLTAGE CURRENT INPUTS RANGE PROGRAMMABLE 12 Channel and Sensor Specificatio...

Page 5: ...MINALS 33 ALARM OUTPUT 34 EXCITATION OUTPUT 36 5 SOFTWARE 37 SYSTEM REQUIREMENTS 37 COMMUNICATIONS INTERFACES 37 INSTALL ACCSENSE VERSALOG 39 INSTALL USB DRIVER 44 CONNECT DATA LOGGER 45 ACTIVATE ACCS...

Page 6: ...larm Settings 57 DOWNLOAD LOGGER 58 Filename Browse 59 Start Time End Time 59 REAL TIME DISPLAY 60 Show List 62 Show Graph 62 Vertical 62 Time Span 62 Dataset 62 Settings 63 CALIBRATE A CHANNEL 63 Und...

Page 7: ...ernative to data acquisition devices and paper chart recorders Accsense VersaLog data loggers provide alarm outputs controlled by the low and high programmable alarm thresholds of each enabled channel...

Page 8: ...st immersion The environment temperature should be within 40 to 70 C 40 to 158 F 1 4 Identity of the logger Each logger has its own unique serial number which can be found on the back of the enclosure...

Page 9: ...on ground DC voltages in the range up to 20 VDC Any voltages over this range may cause permanent damage to the device Maximum Input Current Range For logger model VL DCC HR VL DCVC HR The logger is de...

Page 10: ...sense VersaLog Data Loggers User s Manual Page 9 2 2 H Ha ar rd dw wa ar re e M Me ec ch ha an ni ic ca al l D Di im me en ns si io on n Logger Diagram For Model VL DCV 2 VL DCC HR VL DCVC HR VL TC VL...

Page 11: ...e 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 VL DCV 2 Voltage Inputs Programmabl...

Page 12: ...uts Channels One on board thermistor temperature 40 C 70 C 40 F 158 F Seven external Voltage DC Software programmable input range selections for each channel 0 20 V 5 5 V Resolution 0 0018 Accuracy Th...

Page 13: ...40 F 158 F Seven external Current DC inputs 0 20 mA Resolution 0 0018 Accuracy Thermistor channel 0 2 C 0 C 70 C 32 F 158 F Current channels 0 1 FSR 25 C Load Resistor 12 Ohms Over current protection...

Page 14: ...ammable range for each channel 0 20 mA Accuracy Reference Temperature 0 36 F Voltage channels 0 05 FSR 25 C for 20V channels 0 1 FSR 25 C for 2V channels Current channels 0 15 FSR 25 C Load Resistor F...

Page 15: ...st share the same common ground Channel and Sensor Specifications Channels CH1 CH4 voltage programmable range for each channel 0 20 V 0 2 V CH5 CH7 current programmable range for each channel 0 20 mA...

Page 16: ...inputs must share the same common ground Channel and Sensor Specifications Channels One on board thermistor reference temperature 40 F 158 F Seven external thermocouple inputs Type E N J K T Software...

Page 17: ...90 download download html 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 Th...

Page 18: ...2 F 158 F External thermistor channels 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 yo...

Page 19: ...rature is by using built in Temperature equation You select Temperature in Equation column Then you need to change temperature coefficient values by clicking Change Coefficients button in Action colum...

Page 20: ...licated 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 temperatu...

Page 21: ...tor 44004 you can apply it to the channel VL BR EXCITATION SENSE INPUT VOLTAGE INPUT FIXED RANGE The VL BR is a single channel battery powered stand alone strain gauge bridge data logger It supports 4...

Page 22: ...dge circuit The Wheatstone bridge consists of four resistances R1 R2 R3 and R4 an excitation voltage and an output voltage Generally one or more of the resistances are variable and change in accordanc...

Page 23: ...he arrangement is called Full Bridge as shown below It is automatically temperature compensated when all four active gauges bonded on the same material and the highest sensitivity is obtained Connect...

Page 24: ...configure the logger choose QuarterBridge equation and click Change GF to change the Gauge Factor Wiring for Half Bridge Circuit This circuit is for equation HalfBridge When configure the logger choo...

Page 25: ...ample for your reference The source code looks like Sample Equation for iLog Strain Gauge Bridge public double SampleBridge double Input Change it according to your curcuit double GF 1 Gauge Factor Th...

Page 26: ...ny 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 outp...

Page 27: ...cur during the same sampling interval period it only saves the first event the third period in the diagram below A typical application is to monitor rainfall with tipping bucket Connections Pluggable...

Page 28: ...ggested Type of Inputs Voltage solid state switch coil relay dry contact digital TTL signal VL RTD 1 for PT100 Besides the on board thermistor channel VL RTD 1 logger has four external channels used t...

Page 29: ...2 RTD_TCR392 This equation is for RTD sensor PT100 with TCR 0 00392 C between 0 and 100 C The temperature coefficients are A 3 9848E 3 B 5 87E 7 C 4E 12 SiteView also provides a custom equation called...

Page 30: ...Math Pow t 2 return r 4 4 B Ba as si ic c F Fu un nc ct ti io on ns s Built In Equations Equation and Channel Type are two essential parameters to make sure the physical measurement can be converted...

Page 31: ...upleN ThermocoupleR ThermocoupleS ThermocoupleT VoltageDC Thermocouple B Thermocouple E Thermocouple J Thermocouple K Thermocouple N Thermocouple R Thermocouple S Thermocouple T Voltage DC Pulse Pulse...

Page 32: ...ies if the logger will stop or continue logging when the memory is full Available settings are Stop Logging and Continue Logging If Logging Mode was set to Stop Logging the logger will stop logging at...

Page 33: ...ed 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...

Page 34: ...abled and are triggered 3 Low Battery The LED will flash in amber when it samples if the logger detects a low battery level If you do not need the LED to indicate the status of operation you can disab...

Page 35: ...able any output Alarm1 and A2 EXT No output connects to Alarm1 and A2 E terminals High alarm A2 EXT only High alarm state controls A2 EXT terminal Low alarm Alarm1 only Low alarm state controls Alarm1...

Page 36: ...VDC GND GND Alarm1 is used as switch to turn on off siren based on alarm state If the alarm device needs more power to drive A1 provides control signal to drive a coil relay as follows Coil Relay Powe...

Page 37: ...trol greatly reduces power consumption 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 Versa...

Page 38: ...efer to Accsense VersaLog SiteView User s Manual available for download online System Requirements Computer CPU 1 0 GHZ or above Memory 256M or above Port 1 USB port or 1 COM port Hard Drive 1GB or ab...

Page 39: ...Accsense VersaLog Data Loggers User s Manual Page 38 Serial Port Connection Ethernet Connection with Site USB Device Server...

Page 40: ...If your computer does not have WindowsInstaller3 1 and Net Framework 3 5 or above installed please manually install them from the enclosed CD 2 Install VersaLog SiteView Insert the included CD to the...

Page 41: ...ers User s Manual Page 40 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...

Page 42: ...Loggers User s Manual Page 41 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 pro...

Page 43: ...Accsense VersaLog Data Loggers User s Manual Page 42 This confirmation page gives you the chance to modify previously selected options Click Next button to start the installation...

Page 44: ...e VersaLog Data Loggers User s Manual Page 43 As VersaLog SiteView is being installed the above dialog shows the installation progress by percentage Once the installation is complete the below dialog...

Page 45: ...oggers User s Manual Page 44 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 w...

Page 46: ...nect the logger to the computer s USB port Windows Vista and Windows 7 will automatically recognize the data logger For Windows XP users the following dialog window will appear Select No not this time...

Page 47: ...Accsense VersaLog Data Loggers User s Manual Page 46 Select Install the software automatically Recommended as shown in the above figure and then click Next...

Page 48: ...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 drive...

Page 49: ...ined 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 Double click on SiteView i...

Page 50: ...s Manual Page 49 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 yo...

Page 51: ...nected to the computer via a USB port you need to use USB tab to communicate with the logger Menu Bar The Menu Bar contains File View Tools and Help menus and their respective sub menus that are used...

Page 52: ...use USB as an example of communications interface For other communications interfaces please refer to Accsense VersaLog User s Manual available for download online If the logger is connected to the co...

Page 53: ...ng interval and other properties of the connected logger General This sub tab page displays the general properties of the logger Alarm Excitation This sub tab page displays the properties regarding th...

Page 54: ...e logger is a procedure to edit the properties of the logger and to start the new logging session If you are already in the logger status panel clicking on the Configure button will bring up the confi...

Page 55: ...ment 1 hour to 12 hour with 1 hour increment If the sampling interval is four seconds or faster the logger must be powered by an external power supply during the logging period Making changes to the S...

Page 56: ...s field specifies the name or the description of the channel maximum of 30 characters Equation This field specifies the equation used for the channel Different channel ranges have different default eq...

Page 57: ...pecifies the digital value that is over 65535 when the input value is in the high range value for 0 5VDC channel the high range is 5 volt The equation will subtract this value from the original digita...

Page 58: ...le specifies how each channel controls alarm state by Alarm Enabled Check this field to associate this channel to the alarm state Low High Alarm These fields define the alarm thresholds If the reading...

Page 59: ...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 d...

Page 60: ...edit or choose a file name Start Time End Time These fields specify the desired start and end time for the data to be downloaded You can use either scroll bars or the calendar controls to change the s...

Page 61: ...le 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 give...

Page 62: ...Accsense VersaLog Data Loggers User s Manual Page 61 Real Time in Horizontal View Real Time In Vertical View...

Page 63: ...view panel Show Graph Click to show hide the chart view panel Vertical Click to display the chart and list views vertically Time Span This field allows changing the time span for the chart view Avail...

Page 64: ...lds specify the calibration values that are used for measurement adjustment Cali Low value specifies the digital value that is over zero when the input value is the lowest value for 0 5 VDC channel th...

Page 65: ...easured Data Ideal Data Input Output Cali Zero 100 0 100 Cali Span 65100 65535 435 After Correction Min Value 100 100 0 After Correction Max Value 65100 435 65535 Decide On Line or Off Line Calibratio...

Page 66: ...Accsense VersaLog Data Loggers User s Manual Page 65 Select the channel you want to calibrate on and click OK button The calibration dialogs appear as follows...

Page 67: ...Accsense VersaLog Data Loggers User s Manual Page 66...

Page 68: ...g Data Loggers User s Manual Page 67 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 Man...

Page 69: ...econds 1 to 12 hours user selectable Logging Mode Stop recording or FIFO when memory is full Logging Activation Programmable instant start delay or field push button activation Communications Interfac...

Page 70: ...Low Battery amber when sampling Excitation Control A2 EXT terminal strip can be configured as excitation control output for driving the power of connected devices Warm up Interval settings 10 to 240...

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