DGSI VW MiniLogger Manuel utilisateur
Copyright ©2018 DGSI. All Rights Reserved.
This equipment should be installed, maintained, and operated by technically qualified personnel. Any errors
or omissions in data, or the interpretation of data, are not the responsibility of Durham Geo Slope Indicator
(DGSI). The information herein is subject to change without notification.
This document contains information that is proprietary to DGSI and is subject to return upon request. It is
transmitted for the sole purpose of aiding the transaction of business between DGSI and the recipient. All
information, data, designs, and drawings contained herein are proprietary to and the property of DGSI, and
may not be reproduced or copied in any form, by photocopy or any other means, including disclosure to out-
side parties, directly or indirectly, without permission in writing from DGSI.
12123 Harbour Reach Drive
Mukilteo, Washington, USA, 98275
Tel: 425-493-6200 Fax: 425-493-6250
E-mail: [email protected]
Website: www.durhamgeo.com
VW MiniLogger
52613399
VW MiniLogger, 2018/8/24
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . 1
Installing the Manager Program . . . . 2
Connecting to the MiniLogger. . . . . . 4
Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . 8
Data Logging . . . . . . . . . . . . . . . . . . . . . 12
Retrieving Data . . . . . . . . . . . . . . . . . . . 14
About Radio MiniLoggers . . . . . . . . . 18
Installing Base Station Software. . . . 19
Making a Radio ID List . . . . . . . . . . . . . 22
Connecting to Radio MiniLoggers . 25
VW MiniLogger, 2018/8/24 1
Introduction
The MiniLogger System The VW MiniLogger is a compact datalogger designed to moni-
tor a single VW sensor, such as a piezometer, crackmeter, strain
gauge, or displacement sensor.
Logger Manager, available as a free download at
https://durhamgeo.com/resources/download-pages/software/,
is used to program the MiniLogger and also to retrieve the
readings that the MiniLogger has recorded.
A wireless option can be added to the MiniLogger. The
MiniLogger can then be set up and programmed remotely by a
PC connected to a base-station radio.
Chapters in this Manual Installing the Manager Program tells how to install the Logger
Manager software on your PC.
Connecting to the MiniLogger tells how to connect your PC to
the MiniLogger with a serial cable.
Setting Up tells how to set reading intervals and other functions
of the MiniLogger.
Data Logging tells how to connect a sensor to the logger and
start data logging.
Retrieving Data tells how to retrieve data from the logger and
save it on your PC.
About Radio MiniLoggers provides a brief overview of the wire-
less system.
Installing Base Station Software tells how to install drivers for
wireless communications.
Connecting to Radio MiniLoggers tells how to establish a radio
link between your PC and the Radio MiniLogger.
Base Stations discusses the setting and options used in setting
up Remote Stations.
Auto-Retrieval details how to obtain information from the log-
ger without having to manually retrieve the data in the program.
VW MiniLogger, 2018/8/24 2
Installing the Manager Program
Introduction The Manager program is used to program the MiniLogger and
to retrieve stored data. You can download the most recent ver-
sion of the program from www.durhamgeo.com.
Download
the Manager Program
Logger Manager can be downloaded free of charge from the
Durham Geo Slope Indicator website at:
https://durhamgeo.com/resources/download-pages/software/
Please check the site occasionally to verify that you have the
most recent version.
1. Start your internet browser. Click in the address field, enter
www.durhamgeo.com, and press Enter. When the website
appears:
2. Click on Resources, then click on Software in the Downloads
section.
3. Scroll down to Loggers & Readouts and choose the Logger
Manager (32-bit or 64-bit) that is appropriate for your com-
puter’s operating system. Click on the link to start download-
ing the setup file.
4. Double-click on the downloaded file, which is called “setup-
manager.exe.”
5. Follow on-screen setup instructions. If you are prompted to
install the FTDI Chip CDM Driver, Click OK to proceed with
installation of the driver. Afterwards, you will find a shortcut
named Logger Manager on your start menu. The actual path
to your program is normally C:\Program Files\Logger Man-
ager\LoggerManager.exe.
Updating
the Manager Program
1. Follow the steps above to download the most recent version
of the Manager program.
2. When you double-click on the downloaded file (setupman-
ager.exe), a dialog asks if you want to modify, repair, or
remove the file. Choose remove. Windows then removes your
old Manager program (but not any data). If Windows does
not automatically prompt you to remove the old program,
stop the installation process and manually remove the old
program via the Windows Control Panel before continuing to
install the updated version.
3. Once the old version has been deleted, install the new version.
VW MiniLogger, 2018/8/24 3
Connecting to the MiniLogger
Overview This chapter tells how connect a PC to the MiniLogger using a
serial cable.
Power Up
the MiniLogger
The MiniLogger requires two D-cell batteries. Alkaline batteries
can last up to six months, but actual battery life depends on
numerous variables such as the temperature, whether or not a
radio is used, and how frequently data is retrieved.
1. Connect the wires of the battery holder to the terminal post, if
necessary.
2. Orient and insert the batteries as shown on the battery holder.
3. The MiniLogger takes a reading immediately and then waits
for its next scheduled reading.
Red (+) Black (–)
Orient the batteries as
shown on the battery holder.
Signal cable not shown.
VW MiniLogger, 2018/8/24 4
Connect by Serial Cable A serial cable is supplied with the MiniLogger. It is a “modem
cable” with straight-through wires. (Null-modem cables will not
work).
1. .Find your PC’s
serial port. Look for
a 9-pin connector.
Most newer com-
puters do not have a
serial port. In that
case, a USB to serial
adaptor or a PC
card is required. See
troubleshooting
later in this chapter.
2. Connect one end of
the interface cable
to the PC’s serial port and the other end of the cable to the
MiniLogger’s serial port.
Start the Logger
Manager Program.
1. Open the Logger
Managerprogram.
2. Click Device Type
and select the VW
MiniLogger.
3. Click on Set Up.
4. You should see a
screen similar to
this.
5. Click Retrieve
Setup. This will
download the cur-
rent setup (fac-
tory or custom)
that is on the log-
ger, including the
serial number.
MiniLogger’s
Serial port
VW MiniLogger, 2018/8/24 5
Troubleshooting
Serial Connections
If you see an error
message, click OK to
clear the message, and
then:.
Check that the
cables are firmly
connected to
MiniLogger and
computer.
Check the connec-
tion type, as
explained below.
Change the comm
port, as explained below.
Get a USB adapter, if necessary, as explained on the next page.
Check Connection Type 1. Click“Communications”
on the menu bar.
2. Confirm that “Serial
Cable” is selected. If it
was not selected, select it,
click OK, and try con-
necting again.
Change the Comm Port 1. Click Communications.
2. Choose a different Comm port from the dropdown list and
click OK.
3. If there is only one choice on the Comm Port list, then some
other device probably has control of the serial port.
VW MiniLogger, 2018/8/24 6
Troubleshooting
continued
Can’t find a serial port? Some computers have only USB ports.
In this case, you must use a USB-to-Serial adapter or a PC card
(PCMCIA card) to connect to the MiniLogger.
USB to Serial Adapters USB-to-serial adapters are less expensive and are available in
computer stores and office-supply stores. In the package, you
will find driver software and instructions. Follow the instruc-
tions exactly.
The driver will create a new Comm port. When you start the
Manager program, and click communications, you should see
the new port when your USB cable is plugged in. If you do not
see the port, click the refresh button.
If the adapter does not work when you try it, download and
install the latest driver from the manufacturer's website. There
are usually instructions with the adapter that tell how to do this.
We find that most adapters work fine when updated drivers are
installed.
PC Card Serial Port If your portable computer has a PC Card slot, you can use a PC
card to provide a serial interface card. PC cards are typically
more expensive than the adapters above, but the PCMCIA stan-
dard is fairly mature and the card is likely to work well.
VW MiniLogger, 2018/8/24 7
Setting Up
Preparations 1. Check that the MiniLogger’s batteries are in place.
2. Connect the MiniLogger to the PC.
3. Open Logger Manager
4. Choose VW MiniLogger
Edit Settings 1. Click on “Set Up”.
You should see a screen
similar to this.
Set MiniLogger Click “Set General.”
Device ID: Enter an
identifier for the
MiniLogger.
Change the Data For-
mat (Campbell, Slope
ID or CSV). If you are
using a spreadsheet pro-
gram to analyze the
data, it is suggested that
you select CSV format.
When Logger Memory is
Full: Choose either stop recording or continue recording.
In the Stop mode, the MiniLogger stops recording when its
memory is full. It will not record again until you retrieve the
data and clear its memory.
In the Continue mode, the MiniLogger continues recording
readings when its memory is full. It overwrites the earliest read-
ings with the most recent readings.
VW MiniLogger, 2018/8/24 8
Set Clock Click on the “Set Clock” but-
ton to set the MiniLogger’s
clock. To synchronize the
MiniLogger clock to your
computer’s clock, click the
“Match Computer” button. If
you want to set a different
time, click in the date and
time fields, type in values, and click OK.
Note 1: The date display format is controlled by the short date
setting in Windows (Control Panel>Regional Settings>Date).
Note 2: Both the MiniLogger and the Manager program use
four-digit years internally.
Set Sensor Click the Set Sensor button to enter the sensor serial number,
the sweep frequency, and sensor calibration factors.
Sensor ID: Unique identifier established by the user. Cannot be
the same as the serial number.
Sensor Serial Number: Sensor serial number from the factory.
When you retrieve data and want to save it, the Sensor SN entry
will be suggested as a file name.
Coefficients: Choose a Calibration Model for the sensors. For
instance, standard borehole piezometers would use VW_ABC
to specify a VW sensor using ABC Calibration factors. Choose
Single Channel. Enter ABC factors as noted on the sensor cali-
bration sheet.
Use ABC / TI factors: These factors are used to convert Hz read-
ings to kPa or psi. TI factors integrate temperature readings to
automatically correct for temperature effects. See the sensor cal-
ibration sheet to see how the factors are applied.
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