LEMIS VDM-250.1 User manual

PortableDensityand Viscositymeter
VDM-250.1
Owner’sManual
October,2009
Version_V1.1

DensityandViscositymeterVDM-250.1Owner’sManual
2
CONTENTS
1. APPLICATION.......................................................................................................3
2. STANDARD COMPLETE.......................................................................................3
3. WARNINGS&OPERATORSAFETY.....................................................................3
4. SPECIFICATIONS.................................................................................................4
5. CONSTRUCTIONandOPERATINGPRINCIPLE...................................................5
5.1. KeyboardandPanel........................................................................................6
6. MENU....................................................................................................................7
7. SETTINGS.............................................................................................................8
7.1. “TABLE”-ProductTypeSetting.......................................................................9
7.2. “FORMAT”ofRealandRelativeDensityReadings...........................................10
7.3. “DENSITY”UnitsSetting..................................................................................11
7.4. “TEMPERATURE”UnitsSetting.......................................................................12
7.5. “DVISC”UnitsSetting......................................................................................12
7.6. “KVISC”UnitsSetting......................................................................................13
7.7. “DATE”Setting..............................................................................................13
7.8. “TIME”Setting................................................................................................14
7.9. “SHUTDOWN”Setting....................................................................................15
7.10. “BEEPER”Setting...........................................................................................16
7.11. “BLUETOOTH”ON/ OFFSetting....................................................................16
7.12. “DEVICEINFO”...............................................................................................16
7.13. “PASSWORD”Setting.....................................................................................17
7.14. “PRINTER”Setting..........................................................................................18
8. OPERATINGMODE............................................................................................21
8.1. Preparations....................................................................................................21
8.2. MeasuringMode..............................................................................................22
8.3. DataStorage...................................................................................................24
8.4. AfterOperation................................................................................................25
9. OPERATIONSWITHSAVEDDATA.....................................................................25
9.1. VIEW/ SavedDataBrowsing..........................................................................25
9.2. CLEAR/SavedDataDeleting..........................................................................27
9.3. SavedDataPrinting.........................................................................................28
10. SERVICING.........................................................................................................29
10.1. AfterUse.........................................................................................................29
10.2. Cleaning..........................................................................................................29
11. BATTERY............................................................................................................30
11.1. BatteryStateReview.......................................................................................30
11.2. BatteryCharging..............................................................................................31
12. TESTING andCALIBRATION...............................................................................32
12.1. Testing............................................................................................................32
12.2. Calibration.......................................................................................................32
13. VERIFICATIONNOTES.......................................................................................33
14. STORAGEand TRANSPORTATION....................................................................33
Appendix1. The DensityofDistilledWater withtheTestingTemperature (Tt0)..................................34
Appendix2....................................................................................................................35
VDM-250.1–Availabletroublesand trouble-shootingprocedures.........................35

DensityandViscositymeterVDM-250.1Owner’sManual
3
1.APPLICATION
The portableDensityand Viscositymeter VDM-250.1series (hereinafter: VDM-
250.1 or device)aredesigned fordensity,dynamicviscosityand kinematic
viscositymeasurementsofanypureliquidsdirectlyintanks, withoutsampling,
atthe depthup to6meters.The deviceallowsreadingsof relativedensity(see p.
7.3.).
It maybe used forqualitativeand quantitativecontrolofpetroleumproductsinthe
processofproduction,refining,transportation,storing and trading of petroleum
products.
2.STANDARD COMPLETE
· Controllerwithbuilt-inBluetoothchannelfordatatransfertoPCand
grounding unit;
· Density/Viscosity/Temperaturesensorwithcable;
· Charging device;
· Carrying case;
· Manual.
3.WARNINGS&OPERATORSAFETY
· Makesureyou haveread thismanual carefullybeforeoperating the device.
· WARNING!Donotchargethebattery oropenthebattery compartmentin
explosivezones!
· WARNING!Donotoperatethedevice inexplosive zones without
grounding!
· WARNING!Potential electrostatichazard!
· WARNING!Donotoperatethedevice withmechanicalorelectronic
defects!
· The operatorofthe VDM-250.1mustcontrolgood working orderof the device
during itsmaintenance.
· The devicemaybe refitted and dismantled onlybymanufacturerorauthorized
distributor’scompany.
· At alltimesusecommonsense.
· It isimportantthatonlysuitablytrained personneloperatethisequipment,in
accordancewiththe instructionscontained inthismanualand withgeneral
safetystandardsand procedure.

DensityandViscositymeterVDM-250.1Owner’sManual
4
· Ifthe equipmentisused inamannernotspecified byVDM-250.1the
protection provided bythe equipmenttothe usersmight be impaired.
4.SPECIFICATIONS
PERFORMANCES PARAMETERS
Accuracy:
-density
-dynamicviscosity
-temperature
+0.0003…+ 0.0005 g/cm
+1% of span
+0.2 °C
Measuring ranges:
-density
-
dynamicviscosity
-temperature
0to2g/cm
0.2to2000 mPa×s(0.2to2000 cP)
-40 to+85 °C
Resolution:
-density
-dynamicviscosity
-temperature
0.0001 g/cm
0.001 mPa×s(measuring range: 0.2to10 mPa×s)
0.01 mPa×s(measuring range: 10 to100 mPa×s)
0.1mPa×s(measuring range: 100 to2000 mPa×s)
0.1°C
Temperature
compensation
automatically
Battery NiMH-accumulator
3,6Volts-1500 mAh/ 10 hours
Ambienttemperature -40 to+85 °C
Depthofimbeddingof
thesensor
up to6meters
Memory 480 values
PCcompatibilityBluetooth
Dimensions:
-controller
-
sensor
173 x85 x45 mm
260 x45 mm
Weight:
-
controller
0.8kg

DensityandViscositymeterVDM-250.1Owner’sManual
5
-sensor 2.0kg
Safety
-
controller
-sensor
II 2G (1G)Exib[ia]IIBT4(Ga)
II 1G ExiaIIBT4Ga
CERT:IECExFTZ 09.0027X
FTZ 09 ATEX0189X
Enclosure IP65
5.CONSTRUCTION*and OPERATING PRINCIPLE
The deviceconsistsofcontroller(electronicdigitalunit)and
density/viscosity/temperaturesensor(fig.1)withcable.
NOTE: The cable ofthe sensorhasametal connectionplug withalatchinsideof
it (see fig.4). Afterthe cable isconnected tothecontroller–thelatchfixes
the plug.Todisconnectthe cable fromcontroller–takethe metal
connectornearcontroller’sbodyand pull itcarefully.DON’TPULL THE
CABLEFORDISCONNECTION.
The sensorismade fromstainless steel. The
operating principleof the density/viscosity
sensorbased on the measuring ofresonant
oscillation frequency ofmechanicaloscillating
system, whichiswhollyimmersed intothe
liquid.
Thismethod allowsmeasurerealdensity
and viscosityof liquidwithout extraction of
samples, at anydepth.
Fig.1.
*The manufacturerreservestherighttomakesomechangesinconstruction and software
ofthedevice,whichwillnot adverselyaffecttothequalityofthe device.

DensityandViscositymeterVDM-250.1Owner’sManual
6
5.1.Keyboardand Panel
Controlleristhe portable, explosive-proof digitalunit, withaccumulator,keyboard,
LCD and built-inBluetooth.
Fig. 2.
-powerswitchON/OFF
Esc
-“Escape”
-“Enter”
-“right”cursorkey
-1)“left”cursorkey;
2)additionaldata/readingsdisplay
-“up”cursorkey
-“down”cursorkey
-backlightswitchON/OFF
Fig. 3.

DensityandViscositymeterVDM-250.1Owner’sManual
7
The LCD panel(fig.3)can displaytwolinesof 16 characterseachand showsthe
programmed parametersforthe selected mode,ortheoptionsavailableforeach
function.
6.MENU
· SwitchONthe controller C.When the powerisswitched on,a
copyright/version noticesimilartothe one belowisdisplayed:
VDM-250.1
DensityandViscositymeter
· After1secondthe line “Densityand Viscositymeter”will be changed toinfo
travelling line “www.lemis-process.com”.Toescape thetravelling line -press
.
The devicebeginstesting:
Testing…
∏∏∏∏∏∏
· Ifthe clock must bereset displayshows:
Year/Month/Date
2009/ Jul/ 25
(See p.p. 7.6. and 7.7.toset dateand time).
· Ifthe sensorisnot well connected orit isdefected,the displayshows:
Nosensor
detected...
· Ifit isallright –the operating modesmenu willbe displayed:
ØMeasuring
Notes
C:
ØCalib
Printer
C:
ØBattery
Settings

DensityandViscositymeterVDM-250.1Owner’sManual
8
· ToenterinMENU – C/ Notes / C.
Notes: ØView
Clear
where: View –viewing of the stored data(see p. 9.1.);
Clear –stored dataclearing (passwordrequested) (seep.9.2.);
· Toenterinanyaboveselection –mark the requiredone bymarker Øand
press .Toviewstored data–mark “View”bymarker Ø,press
and then selectsearching way“By Date”or“By Number”.Searching stored
databydateshouldenteryear,monthand day;bynumbershouldenter
numbersofmeasurements(from…to…).
NOTE:toenterin MENU fromthe NotesMode –press
Esc
.
7.SETTINGS
EnterinMENU(see point 6):
ØBattery
Settings
C/ ØSettings / C:
ØTable: Products
Format: Dt,20°
C:
Density:kg/m3
ØTemperature: oC
C:
DVisc:cP
ØKVisc:cSt

DensityandViscositymeterVDM-250.1Owner’sManual
9
C:
Date: 15/Aug/09
ØTime:15:04:33
C:
Shutdown: Auto
ØBeeper: ON
C:
Bluetooth: ON
ØPassword
C:
ØDeviceInfo
Where: Table –selection of the liquidtype forappropriatereferred density
calculation;
Format –setting ofthe required formatofthe referred densityreadings;
Density –setting of the densityunits;
Temperature –setting of the temperatureunits;
DVisc –settingofthe dynamicviscosityunits;
Kvisc –setting of the kinematicviscosityunits;
Date –datesetting;
Time –timesetting;
Shut down –ON/OFF setting;
Beeper –ON/ OFFsetting;
Bluetooth – ON/OFF setting;
Password –setting of the passwordforenterin«Clear»mode;
Device Info –information about acopyright/version ofthe device.
Mark the required selection withthe markerØand press .
7.1.“TABLE”-ProductTypeSetting
7.1.1.Selectthe type ofmeasured liquidbeforemeasurements: “Products”
(petroleumproducts: gasoline,jet,diesel).

DensityandViscositymeterVDM-250.1Owner’sManual
10
EnterinSettingMenu and select“Table”position:
ØBattery
Settings
C/ ØSettings / C:
ØTable: Products
Format: Dt,20°
C:
ØTable: Crude Oil
Format: Dt,20°
7.1.2.Confirmthe selection bypressing key.Thisselection willbe
considered during the following calculation ofthe relativedensity.
7.1.3.Toreturninthe Setting Mode –press
Esc
.
7.2.“FORMAT”ofRealand RelativeDensityReadings
Thereareappropriatetablesrecorded inthe programofthe VDM-250.1,which
allowcalculating of relative density of crude oiland light petroleumproducts:
-relativedensityof gasoline,jet, dieselat200С–ASTMD1250 Table59B;
-relativedensityof gasoline,jet, dieselat150C–ASTMD1250 Table53B;
-relativedensityof gasoline,jet, dieselat600F –ASTMD1250 Table23B;
- APIGravityofgasoline,jet, diesel–ASTMD1250 Table 5B;
- relativedensityofcrude oilat150C–ASTMD1250 Table53A;
-relativedensityof crude oilat 600F –ASTMD1250 Table23A;
- APIGravityofcrude oil–ASTMD1250 Table5A;
7.2.1.Find “Format”inthe Setting menu bythe aidof keys and .
Thereareseveralformatsofobserved resultsrepresentationareavailable:
Dt,15º-real densityand temperature+relativedensityat 15°C;
Dt,20º-real densityand temperature+relativedensityat 20°C;
SG,60º-specificgravity+specificgravityrelated to60°F;
API,60º-APIdegree +APIdegree relatedto60°F;