SBS SBS-2500 User manual

Digital Hydrometer
SBS-2500 INSTRUCTION
MANUAL
Storage Battery Systems LLC • Instruction Manual for SBS-2500 Digital Hydrometer • Rev. 09-15
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

Table of Contents
1 Introduction ............................................................................................................................................................. 4
2 Safety Measures ....................................................................................................................................................... 4
3 Description of the Instrument ................................................................................................................................. 5
3.1 SBS-2500 .................................................................................................................................................................. 5
3.2 Display ...................................................................................................................................................................... 5
3.3 Keys .......................................................................................................................................................................... 5
4 Tutorial ..................................................................................................................................................................... 7
4.1 Inserting batteries .................................................................................................................................................... 7
4.2 Configuration ........................................................................................................................................................... 7
4.3 Test measurement ................................................................................................................................................... 8
4.4 Adjustment ............................................................................................................................................................... 8
4.5 Cleaning .................................................................................................................................................................... 8
4.6 Switching off and on ................................................................................................................................................ 8
5 Menu ........................................................................................................................................................................ 9
5.1 Using the menu ........................................................................................................................................................ 9
5.2 Measurement Unit (Measure Unit) ....................................................................................................................... 10
5.3 Temperature Unit (Temp. Unit) ............................................................................................................................. 12
5.4 Measure Mode ....................................................................................................................................................... 12
5.5 Adjustment Mode (Calib. Mode) ........................................................................................................................... 12
5.6 Interface ................................................................................................................................................................. 12
5.7 Beep . ...................................................................................................................................................................... 12
5.8 Background Lighting and LCD-Contrast (LCD) ....................................................................................................... 13
5.9 Automatic Switch-off (Power) ............................................................................................................................... 13
5.10 Software Version (Version No.) ............................................................................................................................. 13
5.11 Date & Time ........................................................................................................................................................... 13
5.12 Identification .......................................................................................................................................................... 13
6 Measurement ......................................................................................................................................................... 13
6.1 Procedure for proper measurement ..................................................................................................................... 13
6.2 Filling the measuring cell using the built-in sample pump ................................................................................... 14
6.3 Filling the measuring cell using an external syringe ............................................................................................. 14
6.4 Measuring .............................................................................................................................................................. 15
6.5 Saving the results ................................................................................................................................................... 15
6.6 Displaying and marking saved results ................................................................................................................... 15
6.7 Printing and transferring results ............................................................................................................................ 16
6.8 Deleting results ...................................................................................................................................................... 17
7 Adjustment (cal) ..................................................................................................................................................... 17
7.1 Adjusting the measuring cell with water ............................................................................................................... 17
7.2 Adjusting the measuring cell with a density standard .......................................................................................... 18
7.3 Adjusting the measuring cell with air .................................................................................................................... 18
7.4 Adjusting the temperature display ........................................................................................................................ 19
8 Interface ................................................................................................................................................................. 20
8.1 IR printer settings .................................................................................................................................................. 20
8.2 Data transfer to PC ................................................................................................................................................ 20
8.3 Data format ............................................................................................................................................................ 21
9 Error Messages and Malfunctions ......................................................................................................................... 22
10 Cleaning and Maintenance .................................................................................................................................... 23
10.1 Cleaning the measuring cell ................................................................................................................................... 23
10.2 Cleaning the housing ..............................................................................................................................................23
10.3 Replacing the sample tube .................................................................................................................................... 23
10.4 Replacing the sample pump .................................................................................................................................. 23
11 Standard equipment .............................................................................................................................................. 24
12 Technical data ........................................................................................................................................................ 25
13 Appendices ............................................................................................................................................................. 26

1. Introduction to the SBS-2500
The SBS-2500 is a portable measuring instrument suited for determining the density of liquids. The instrument uses the oscillating body method.
To fill the measuring cell the built-in sample pump or a syringe may be used. The results are automatically calculated into one of the following
units: density, specific gravity, API degrees, Brix, % Alcohol, % H2SO4, Baumé, Plato, Proof or a user-defined unit. The value is then shown on the
backlit display.
For exact measurements, it is imperative to correct the temperature’s influence on the density. Depending on the selected unit the SBS-2500
carries out this result correction automatically. For this task, the instrument uses either internally-stored tables or one of the 10 temperature-
compensation coefficients entered by the user.
The results, along with the sample identification, temperature, temperature-coefficient, date and time can be saved. Together with the
instrument identification they can then, via the integrated infrared interface, be transferred to the computer or printed out on a printer.
2. Safety Measures
Measures for Your Protection and Operational Safety
Do not work in an explosion-hazardous environment! The instrument
housing is not gas tight. Otherwise, there is a risk of explosion from sparks
and/or risk of corrosion by gasses which can seep in.
•Always hold the end of the sample tube over a waste container!
There is a risk of injury when emptying corrosive substances.
•Leave the syringe in the sample intake after injecting a sample!
Otherwise, the sample will run out of the measuring cell.
1. Never press on the measuring cell window! This can influence the
oscillation characteristics of the measuring cell.
2. Do not clean the measuring cell with concentrated NaOH (caustic
soda) or HF (hydrogen fluoride)! Both substances chemically corrode
the measuring cell.
3. Use batteries of the specified type only. Otherwise, proper operation
cannot be guaranteed.
4. Do not submerge the housing in liquid! The instrument is only
resistant to splashed water.
5. Ensure that the following environmental conditions are met:
• nostrongvibrationspresent
• notindirectsunlight
• nohighhumiditypresent
• nocorrosivegassespresent
• temperaturebetween–20°Cand70°C
•no strong electrical or magnetic fields present

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SBS-2500 Manual 09-15-TI2500
3. Description of the Instrument
3.1 SBS-2500
1. Backlit Display
2. Keypad
3. Drain button
4. Sample pump
5. Cover of sample pump
6. Connector for syringe adapter
7. Fixing screw for sample tube
8. Sample tube
9. Measuring cell
10. Infrared interface
11. Lock button
12. Fill button
13. Battery compartment cover
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
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SBS-2500 Manual 09-15-TI2500
3.2 Display
1. Selected unit of measurement
2. Result
3. Sample identification (a…z or space)
4. Sample number, or error number if an error has occurred
5. Appears if “Stability” is set to “Auto”
6. Appears if “Memory” in is set to “Auto”
7. Appears if “Memory” out is set to “Auto”. If a printer or PC is connected, the data are transferred
automatically
8. Battery-power indicator
9. Temperature(°C/°F)
10. Appears if delete mode is activated
11. Mark for results
For the identification of invalid or incorrect results or for marking a sample change
∆Referencetemperature(fortheunits“Comp.Density”and“SG”only)

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SBS-2500 Manual 09-15-TI2500
3.3 Keys
Red symbols: Press key longer than 2 seconds.
Blue symbols: Press key briefly.
No. Symbol Short Key Press Long Key Press
1• Move marker to the left
• Mark saved results
• Delete saved results
2• Move marker upward
• Select sample number
(ascends)
• Switch between “Yes” and
“No” setting
• Select temperature-
compensationcoefficientα
3• Move marker to the right
• Display saved results
• Transfer one saved result
to a printer/PC
• Transfer a series of saved
results to a printer/PC
4• Move marker downward
• Select sample number
(descends)
• Switch between “Yes” and
“No” setting
• Call up adjustment mode
5esc Exit the menu Switch instrument on or off
6ok/meas. • Start measurement
• Confirm input
• Confirm data delete
• Confirm data transfer
• While pressing and holding
key 5: enter the menu
Note
Onlythearrowsymbolsareusedtorepresentkeys1–4inthefollowingoperationinstructions.

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SBS-2500 Manual 09-15-TI2500
4. Tutorial
4.1 Inserting Batteries
1. Open the battery compartment cover on the back of the SBS-2500.
2. Remove battery compartment.
3. Insert batteries into the battery compartment, observing correct polarity.
4. Insert battery compartment, ensuring that the contacts of the battery compartment face the instrument.
5. Close battery compartment cover.
6. The instrument switches on automatically and is immediately ready for operation.
7. With the backlighting switched off the battery lasts about 90 hours.
If nothing appears in the display, check the polarity of the batteries and battery compartment.
4.2 Configuration
Configuring the instrument for test measurement.
Entering the Menu
Press the keys “ok/meas.” and “esc” simultaneously.
The instrument switches to the “FUNCTION” menu, Measure Unit appears in reverse display (white on
black).
Selecting Setting
•Confirm Measure Unit by pressing the “ok/meas.” key.
•Press the key repeatedly until SG(t/t) is marked.
•Confirm SG(t/t) by pressing the “ok/meas.” key.
Setting Date and Time
•Use the key to switch to “Date & Time”.
•Confirm Date & Time with the “ok/meas.” key.
•To set the date, confirm Date with the “ok/meas.” key.
•Use the side arrows to select the number to change, and use the up and down arrows to change the value.
Confirm with “ok/meas”.
•Use the down arrow key to switch to “Time” and confirm with “ok/meas”. Set the time as described above.
Exiting the Menu
Press the “esc” key.
The instrument is configured for test measurement.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
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SBS-2500 Manual 09-15-TI2500
4.3 Test Measurement
1. Push drain button (3) downward completely.
2. Ensure that the sample tube is located in the accompanying density standard or in distilled water.
3. Press the fill button (12) slowly to fill the measuring cell.
4. Ensure that no air bubbles are contained within the measuring cell.
5. Press the “ok/meas.” key.
The instrument automatically executes a measurement and the result appears in reverse display.
Theresultforwatermustbe1.000intheselectedmeasurementuntilSG(t/t).
If the deviation is < 0.0005
Adjustment is ok, the instrument is ready for measurement.
If the deviation is > 0.0005
Adjust instrument, see Chapter 4.4.
4.4 Adjustment
Initializing Adjustment
•Press and hold the key until CALIB (Water) appears on the display. The instrument adjusts
automatically (duration: approximately 1 minute).
•After adjustment is completed, the measured deviation from the theoretical value and Exe cute? (No)
appears.
•Press the  or key. Execute? (Yes) appears.
•Press the “ok/meas.” key to confirm.
The adjustment is confirmed.
4.5 Cleaning
The built-in sample pump or an external syringe can be used to fill the measuring cell with cleaning liquid.
1. Empty the measuring cell completely before cleaning. Press the drain button downward completely
2. Clean the measuring cell daily with a suitable cleaning liquid.
3. For very dirty measuring cells, let the inside of the cell soak in the cleaning liquid.
4. Repeat cleaning if necessary.
5. If the housing is soiled, clean with a cleaning tissue.
4.6 Switching Off and On
Switching off
Press and hold the “esc” key until the display is turned off. The instrument is now turned off.
Switching on
Press and hold the “esc” key until the display appears. The instrument is ready for operation.

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SBS-2500 Manual 09-15-TI2500
5. Menu
The menu of the SBS-2500 offers the following functions:
Measurement Unit (Measure Unit) see Chapter 5.2
Temperature Unit (Temp. Unit) see Chapter 5.3
Measure Mode see Chapter 5.4
Adjust Mode (Calib. Mode) see Chapter 5.5
Interface see Chapter 5.6
Beep see Chapter 5.7
Backlighting and LCD-Contrast (LCD) see Chapter 5.8
Automatic Switch-off (Power) see Chapter 5.9
Software Version (Version No.) see Chapter 5.10
Date & Time see Chapter 5.11
Identification see Chapter 5.12
5.1 Using the Menu
Entering the menu
Press the keys “ok/meas.” and “esc” simultaneously.
The instrument switches to the menu
Selecting Functions
•Press and  keys repeatedly until the desired function is marked.
•Press the “ok/meas.” key to activated the marked function.
The instrument switches to the corresponding submenu or activates the desired function.
Numerical Input
•Select decimal places with the  and keys.
•Change value with the and keys.
•Press the “ok/meas.” key to confirm the value.
Exiting the Menu
Press the “esc” key.

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SBS-2500 Manual 09-15-TI2500
5.2 Measurement Unit (Measure Unit)
The following unites are available for selection:
Density
Available density units:
g/cm3
lb/gal (US) 1 g/cm3= 8.3454 lb/gal
lb/gal (IP) 1 g/cm3= 10.0224 lb/gal
Comp. Density (Temperature-compensated density)
Density measurement in g/cm3at a reference temperature.
All results at the same reference temperature (T0,e.g.20°C),regardlessofthemeasuringtemperature(T).
Compensated density = measured density •(1+α•(T - T0))
10 temperature-compensation coefficients can be saved.
The following input is required:
Comp. No. Number of the temperature-compensation coefficient (0...9)
Comp. Temp. Reference temperature (T0)
αx1000 Temperature-compensationcoefficient
Fortypicaltemperature-compensationcoefficients,seeChapter13.2;calculationofα,seepage11.
SG (t/t) (specific gravity)
SG(t/t)= Density of the sample at T
Density of water at T
T Measuring temperatures
SG (specific gravity, temperature-compensated)
SG= Density of the sample, temperature-compensated for T0
Density of water at T1
10 temperature-compensation coefficients can be saved.
The following input is required:
Comp. No. Number of the temperature-compensation coefficient (0...9)
Comp. T. T0/T1°C(entertemperaturesT0and T1)
αx1000 Temperature-compensationcoefficient
Fortypicaltemperature-compensationcoefficients,seeChapter13.2;calculationofα,seepage11.
API (American Petroleum Institute)
Themeasuredvaluesareconvertedtoareferencetemperatureof15°Cor60°F.ThisconversionisbasedonAPItables:
product group A: crude oil; product group B: fuel, petroleum products; product group D: lubricants. The result can be
expressed as density (e.g. APIA (Density)), or directly in API degrees (e.g. APIA (degrees)).
Brix (Sucrose)
Measurementofthesucroseconcentration,percentweightat20°C.
Alcohol (Ethanol)
Measurementoftheethanolconcentrationinwater,percentweight(Wt%)orpercentvolume(Vol%)at20°C.
H2SO4 (Sulfuric acid concentration)
Measurementofthesulfuricacidconcentration,percentweightat20°C.
Baume (°Baumé scale)
Measurementin°Baumé(heavyBauméford>1,lightBauméford<1)calculatedtoareferencetemperature.
10 temperature-compensation coefficients can be saved. Input of temperature-compensation coefficients via Comp.
Density.Fortypicaltemperature-compensationcoefficients,seeChapter13.2;calculationofα,seepage1.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com