LEMIS DM-250.1 Series User manual

Portable Density Meter
DM-250.1
Owner’s Manual
March 2010
Version_V5.E

Density Meter DM-250.1 Owner’s Manual
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INFORMATION
Information in this document is subject to change without notice and does not
represent a commitment on the part of LEMIS Process who provides this
document "as is", without warranty of any kind, expressed or implied, including,
but not limited to, the particular purpose. LEMIS Process may make
improvements and/or changes in this manual or in the product(s) and/or the
program (s) described in this manual at any time. This product could include
technical inaccuracies or typographical errors. Technical review is periodically
made to the information herein; these changes may be incorporated in new
editions of the publication.
Reproduction of any part of this manual without express written permission is
forbidden.
WARRANTY
LEMIS Process warrants that all equipment manufactured by it shall be free
from defects, in material and workmanship, which might impair its usefulness.
LEMIS Process does not warranty that the equipment is fit for a particular use.
The manufacturer is only responsible for the reliability and performance of the
equipment, if the unit is operated in accordance with the operating instructions,
and all extensions, adjustments, changes and/or repair is only performed by
LEMIS Process authorized persons. All equipment and materials are further
subject to tolerances and variations consistent with the usage of the trade.

Density Meter DM-250.1 Owner’s Manual
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CONTENTS
1. APPLICATION ............................................................................................................ 4
2. STANDARD COMPLETE ........................................................................................... 4
3. WARNINGS & OPERATOR SAFETY......................................................................... 4
4. SPECIFICATIONS ...................................................................................................... 5
5. CONSTRUCTION and OPERATING PRINCIPLE ..................................................... 6
5.1. Keyboard and Panel............................................................................................. 7
6. MENU ......................................................................................................................... 8
7. SETTINGS.................................................................................................................. 9
7.1. “TABLE” - Product Type setting ......................................................................... 10
7.2. “FORMAT” of Real and Relative Density Readings ............................................. 11
7.3. “DENSITY” Units setting ...................................................................................... 13
7.4. “TEMPERATURE” Units setting ........................................................................... 14
7.5. “DATE” setting.................................................................................................... 14
7.6. “TIME” setting...................................................................................................... 15
7.7. “SHUTDOWN” setting ......................................................................................... 16
7.8. “BEEPER” setting................................................................................................ 16
7.9. “BLUETOOTH” ON / OFF setting........................................................................ 17
7.10. “DEVICE INFO”.................................................................................................... 17
7.11. “PASSWORD” setting .......................................................................................... 18
7.12. “Bluetooth PIN” setting ......................................................................................... 19
8. “PRINTER” setting .................................................................................................... 20
9. “CALIB” setting.......................................................................................................... 23
10. OPERATING MODE ................................................................................................. 23
10.1. Preparations......................................................................................................... 23
10.2. Measuring Mode .................................................................................................. 25
10.3. Data Storage ........................................................................................................ 26
10.4. After Operation..................................................................................................... 27
11. OPERATIONS WITH SAVED DATA......................................................................... 27
11.1. VIEW / Saved Data Browsing.............................................................................. 27
11.2. CLEAR / Saved Data Deleting ............................................................................. 29
11.3. Saved Data Printing ............................................................................................. 30
12. SERVICING .............................................................................................................. 32
12.1. After Use .............................................................................................................. 32
12.2. Cleaning ............................................................................................................... 32
13. BATTERY ................................................................................................................. 33
13.1. Battery State Review............................................................................................ 33
13.2. Battery Charging .................................................................................................. 33
13. TESTING and CALIBRATION................................................................................... 35
13.2. Testing ................................................................................................................. 35
13.3. Calibration ............................................................................................................ 35
14. VERIFICATION NOTES ........................................................................................... 35
15. STORAGE and TRANSPORTATION ....................................................................... 36
Appendix 1. The Density of Distilled Water with the Testing Temperature (Tt0) ................. 37
Appendix 2. Available troubles and trouble-shooting procedures....................................... 38
Appendix 3. Certificates...................................................................................................... 40

Density Meter DM-250.1 Owner’s Manual
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1. APPLICATION
The portable density meters DM-250.1 series (hereinafter: DM-250.1 or device)
are designed for density measurements of any pure liquids directly in tanks,
without sampling, at the depth up to 6 meters. The device allows readings of
relative density and volume concentration of alcohol in water solutions.
It may be used for qualitative and quantitative control of petroleum products in the
process of production, refining, transportation, storing and trading of petroleum
products.
The DM-250.1 has waterproof construction with enclosure IP65.
2. STANDARD COMPLETE
 Transducer (digital unit) with built-in Bluetooth channel for data transfer;
 Measuring probe with cable;
 Charging device;
 Carrying case;
 Manual.
Accessories :
 Software: under WINDOWS.
3. WARNINGS & OPERATOR SAFETY
 Make sure you have read this manual carefully before operating the device.
 Do not charge the battery or open the battery compartment in explosive zones!
 Do not operate the device with mechanical or electronic defects.
 The operator of the DM-250.1 must control good working order of the device
during its maintenance.
 The device may be refitted and dismantled only by manufacturer or authorized
distributor’s company.
 At all times use common sense.
 It is important that only suitably trained personnel operate this equipment, in
accordance with the instructions contained in this manual and with general
safety standards and procedure.
 If the equipment is used in a manner not specified by DM-250.1 the protection
provided by the equipment to the users might be impaired.

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4. SPECIFICATIONS
PERFORMANCES PARAMETERS
Accuracy:
- density
- temperature
±0.0003 or + 0.0005 g/cm³(user defined)
±0.2 °C
Measuring ranges:
-density
- temperature
0 to 2 g/cm³
-40 to + 85 °C
Resolution:
- density
- temperature
0.0001 g/cm³
0.1°C
Temperature
compensation automatically
Battery NiMH-accumulator
3,6 Volts - 1500 mAh / 10 hours
Ambient temperature -40 to +85 °C
Depth of imbedding of
the sensor
up to 6 meters
Memory 480 values
PC compatibility Bluetooth
Dimensions:
- controller
-
sensor
180 x 85 x 40 mm
210 x 45 mm
Weight:
-
controller
- sensor
0.7 kg
0.9 kg
Safety:
-
controller
- sensor
II 2G (1G) Ex ib [ia] IIB T4 (Ga)
II 1G Ex ia IIB T4 Ga
CERT: IECEx FTZÚ09.0027X
FTZÚ 09 ATEX 0189X
Enclosure IP 65

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5. CONSTRUCTION * and OPERATING PRINCIPLE
The device consists of the electronic digital unit (transducer) and the probe with
cable.
NOTE: The cable of the probe has a metal connection plug with a latch inside of
it. After the cable is connected to the transducer – the latch fixes the plug.
To disconnect the cable from transducer – take the metal connector near
transducer’s body and pull it carefully. DON’T PULL THE CABLE FOR
DISCONNECTION.
The sensor (fig.1) is made from
stainless steel. The operating principle
of the density sensor based on the
measuring of resonant oscillation
frequency of mechanical oscillating
system, which is wholly immersed into
the liquid.
This method allows measure real
density of liquid without extraction of
samples, at any depth.
Fig. 1.
*The manufacturer reserves the right to make some changes in construction and software
of the device, which will not adversely affect to the quality of the device.

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5.1. Keyboard and Panel
Controller (fig.2) is the portable, explosive-proof digital unit, with accumulator,
keyboard, LCD and built-in Bluetooth.
- power switch ON/OFF
Esc
- “Escape”
- “Enter”
- “right” cursor key
- 1) “left” cursor key;
2) additional data/readings display
- “up” cursor key
- “down” cursor key
- backlight switch ON/OFF
Fig. 2. Fig. 3.
The LCD panel (fig. 3) can display two lines of 16 characters each and shows the
programmed parameters for the selected mode, or the options available for each
function.

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6. MENU
 Switch ON the controller

. When the power is switched on, a
copyright / version notice similar to the one below is displayed:
DM-250.1
Density Meter
 After 1 second the line “Density Meter” will be changed to info travelling line
“www.lemis-process.com”. To escape the travelling line - press .
The device begins testing:
Testing…
█ █ ∏ ∏ ∏ ∏ ∏ ∏
 If the clock must be reset display shows:
Year/Month/Date
2 0 0 9 / J u l / 2 5
(See p.p. 7.6. and 7.7. to set date and time).
 If the sensor is not well connected or it is defected, the display shows:
No sensor
detected...
 If it is all right – the operating modes menu will be displayed:
Measuring
Notes

:
Calib
Printer

:
Battery
Settings

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 To enter in MENU –

/ Notes /

.
N o t e s : V i e w
C l e a r
where: View – viewing of the stored data (see p. 11.1.);
Clear – stored data clearing (password requested if password is set)
(see p.11.2.);
 To enter in any above selection – mark the required one by marker and
press . To view stored data – mark “View” by marker , press
and then select searching way “By Date” or “By Number”. Searching stored
data by date should enter year, month and day; by number should enter
numbers of measurements (from… to…).
NOTE: to enter in MENU from the Notes Mode – press
Esc
.
7. SETTINGS
Enter in MENU (see point 6):
Battery
Settings

/ Settings /

:
T a b l e : P r o d u c t s
F o r m a t : D t , 2 0 

:
D e n s i t y : k g / m 3
T e m p e r a t u r e : oC

:
D a t e : 1 5 / A u g / 0 9
T i m e : 1 5 : 0 4 : 3 3

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
:
S h u t d o w n : A u t o
B e e p e r : O N

:
B l u e t o o t h : O N
B l u e t o o t h P I N

:
P a s s w o r d
D e v i c e I n f o
Where: Table – selection of the liquid type for appropriate referred density
calculation;
Format – setting of the required format of the referred density readings;
Density – setting of the density units;
Temperature – setting of the temperature units;
Date – date setting;
Time – time setting;
Shut down – ON / OFF setting;
Beeper – ON / OFF setting;
Bluetooth – ON / OFF setting;
Bluetooth PIN – PIN code for authorized PC connection;
Password – setting of the password for enter in «Clear» mode;
Device Info – information about a copyright/version of the device.
Mark the required selection with the marker and pr ess .
7.1. “TABLE” - Product Type setting
7.1.1. Select the type of measured liquid before measurements: “Products”
(petroleum products: gasoline, jet, diesel). Enter in Settings Menu and
select “Table” position:
Battery
Settings

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
/ Settings /

:
T a b l e : P r o d u c t s
F o r m a t : D t , 2 0 

:
T a b l e : C r u d e O i l
F o r m a t : D t , 2 0 
7.1.2. Confirm the selection by pressing key. This selection will be
considered during the following calculation of the relative density.
7.1.3. To return in the Settings Mode – press
Esc
.
7.2. “FORMAT” of Real and Relative Density Readings
There are appropriate tables recorded in the program of the DM-250.1, which
allow calculating of referred density of crude oil and light petroleum products:
- correction of observed density of gasoline, jet, diesel to density at 200С – ASTM
D1250 Table 59B;
- correction of observed density of gasoline, jet, diesel to density at 150C – ASTM
D1250 Table 53B;
- correction of observed relative density of gasoline, jet, diesel to relative density
60/600F – ASTM D1250 Table 23B;
-correction of observed API Gravity of gasoline, jet, diesel to API Gravity at 600F
– ASTM D1250 Table 5B;
-correction of observed density of crude oil to density at 200С – ASTM D1250
Table 59A;
-correction of observed density of crude oil to density at 150C – ASTM D1250
Table 53A;
- correction of observed relative density of crude oil to relative density 60/600F –
ASTM D1250 Table 23A;
-correction of observed API Gravity of crude oil to API Gravity at 600F – ASTM
D1250 Table 5A;
7.2.1. Find “Format” in the Settings mode by the aid of keys and .
There are several formats of observed results representation are available:

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Dt,15º- real density and temperature + referred density at 15°C;
Dt,20º- real density and temperature + referred density at 20°C;
SG,60º- real density and temperature + specific gravity (relative density)
related to 60/60°F;
API,60º- real density and temperature + API degree (API Gravity) at 60°F;
7.2.2. Select the suitable format by the aid of key :
T a b l e : P r o d u c t s
F o r m a t : D t , 2 0 º
7.2.3. By the aid of the key - indicate the suitable format with the pointer
.
T a b l e : P r o d u c t s
F o r m a t : D t , 1 5 º

:
T a b l e : P r o d u c t s
F o r m a t : S G , 6 0 º

:
T a b l e : P r o d u c t s
F o r m a t : A P I , 6 0 º
7.2.4. Confirm the selection by pressing key.
7.2.5. To return in the Settings Mode – press
Esc
.

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7.3. “DENSITY” Units setting
This selection allows setting of density units suitable for measurements
representation in “Measuring” mode.
7.3.1. Find “Density” in the Settings menu by the aid of keys and .
7.3.2. Select the suitable density units by the aid of key :
D e n s i t y : k g / m 3
T e m p e r a t u r e : oC

:
D e n s i t y : g / c m 3
T e m p e r a t u r e : oC

:
D e n s i t y : l b / g a l
T e m p e r a t u r e : oC

:
D e n s i t y : l b / f t 3
T e m p e r a t u r e : oC
Select the suitable units and press .
To return in the Settings Mode – press
Esc
.

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7.4. “TEMPERATURE” Units setting
7.4.1. Find “Temperature” in the Settings menu by the aid of and keys.
7.4.2. Select the suitable units by the aid of key :
D e n s i t y : k g / m 3
T e m p e r a t u r e : 0C

:
D e n s i t y : k g / m 3
T e m p e r a t u r e : 0F

Esc
to return in Settings Mode.
7.5. “DATE” setting
7.5.1. To adjust date and time – find “Date” in the Settings menu by the aid of
and keys:
D a t e : 1 5 / A u g / 0 9
T i m e : 1 5 : 0 4 : 3 3
7.5.2. Select required format with key:
D a t e : 1 5 / A u g / 0 9
T i m e : 1 5 : 0 4 : 3 3

:
D a t e : 8 / 1 5 / 0 9
T i m e : 1 5 : 0 4 : 3 3

:
D a t e : A u g / 1 5 / 0 9
T i m e : 1 5 : 0 4 : 3 3

for other formats.

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7.5.3. Select the suitable format by the aid of key and press to
enter correct year, month and date:

:
Y e a r / M o n t h / D a t e
2 0 0 9 / A u g / 1 5
Adjust the date by the aid of , and keys.
Press . To return in Settings Menu – press
Esc
twice.
7.6. “TIME” setting
7.6.1. To adjust time – find “Time” in the Settings menu by the aid of and
keys:
D a t e : 1 5 / A u g / 0 9
T i m e : 1 2 : 3 5 : 5 7

:
D a t e : 2 5 / J u l / 0 3
T i m e : A M 1 2 : 3 5

:
D a t e : 2 5 / J u l / 0 3
T i m e : 1 2 : 3 5 A M
7.6.2. Select the suitable format by the aid of key and press to
enter correct year, month and date:

:
H o u r : M i n u t e
1 2 : 3 5
Adjust the time by the aid of , and keys. Press .
To return in Settings Menu – press
Esc
twice.

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7.7. “SHUTDOWN” setting
7.7.1. Find “Shutdown” in the Settings menu by the aid of and keys:
S h u t d o w n : A u t o
B e e p e r : O N
7.7.2. Select the suitable position by the aid of key :
“AUTO” – the mode of automatic “Power OFF” if a device is not in use
for 20 minutes.
“MANUAL” – the mode of manual “Power OFF”.
Shutdown: Manual
B e e p e r : O N
Select the suitable mode by the aid of key and press .
7.8. “BEEPER” setting
7.8.1. Find “Beeper” in the Settings menu by the aid of and keys:
S h u t d o w n : A u t o
B e e p e r : O N

:
S h u t d o w n : A u t o
B e e p e r : O F F
In case of “ON” choosing every button pushing will be accompanied with beeping.
Select the suitable mode by the aid of key and press .

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7.9. “BLUETOOTH” ON / OFF setting
7.9.1. Find “Bluetooth” in the Settings menu by the aid of and keys:
B l u e t o o t h : O N
B l u e t o o t h P I N

:
B l u e t o o t h : O F F
B l u e t o o t h P I N
Select the suitable mode by the aid of key and press .
7.10. “DEVICE INFO”
7.10.1. To view the information about the device’s software – find “Device Info” in
the Settings menu:
P a s s w o r d
D e v i c e I n f o

:
V e r s . : 1 . 0 1 . 0 1
D a t e : 1 5 . 0 8 . 2 0 0 9

Esc
:
P a s s w o r d
D e v i c e I n f o

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7.11. “PASSWORD” setting
The password (any 6 digits) may be set by user to prevent unauthorized access in
the «CLEAR» mode and Date/Time setting also.
7.11.1. To set the password – enter in Settings menu and find “Password”:
B l u e t o o t h P I N
P a s s w o r d

:
00 0 0 0 0 0 0 0 0 0 0
O l d v a l N e w v a l
7.11.2. Enter the old password to the left side of the display (“Old val”) and press
. The manufacturer-defined password is “000000”.
A marker “0” indicates the digit to be changed by the keys or . The key
moves the marker from one digit to the other.
Enter the old password and press .
7.11.3. After correct old password was entered – the access to the “New value”
of password becomes available. Enter new password and press :
A r e Y o u s u r e ?
y e s → N o ←
To confirm new password – press , to mark ‘Yes’:
A r e y o u s u r e ?
→ Y e s ← n o
→Yes← /

.

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7.12. “Bluetooth PIN” setting
The Bluetooth PIN code (any 6 digits) may be set by user to prevent unauthorized
PC connection.
7.12.1. To set the PIN code – enter in Settings menu and find “Bluetooth PIN”:
B l u e t o o t h : O F F
B l u e t o o t h P I N

:
00 0 0 0 0 0 0 0 0 0 0
O l d P I N N e w P I N
7.12.2. Enter the old PIN code to the left side of the display (“Old PIN”) and press
. The manufacturer-defined password is “000000”.
A marker “0” indicates the digit to be changed by the keys or . The key
moves the marker from one digit to the other.
Enter the old PIN code and press .
7.12.3. After correct old PIN code was entered – the access to the “New PIN”
becomes available. Enter new PIN code and press :
A r e Y o u s u r e ?
y e s → N o ←
To confirm new PIN code – press , to mark ‘Yes’:
A r e y o u s u r e ?
→ Y e s ← n o
→Yes← /

.

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8. “PRINTER” setting
8.1. This item supplies with printer Bluetooth setting. In additional operator can
add to printer list new printer, delete printer from printer list or select
concrete printer for printing. To see printer list:

:
Calib
Printer

:
View List
Add to List

:
List
1.XXX XXXX
1.XXX XXXX is a printer name. In device memory can save up to 3 printers.
8.2. This item supplies with printer selecting that is set as default printer.
Device prints all notes via default printer every time operator is printing. If
in the list is one printer, it is default printer. If there are some printers,
operator need to set concrete printer as default. Find printer (see p.8.1.):
List
1.XXX XXXX

:
Default printer
Delete Printer
Press to set selected printer as default:
Printer Selected
List
1.XXX XXXX