RS PRO RS-33S User manual

INSTRUCTION MANUAL
RS-33S
146-6430
Battery Capacity Tester
FREN IT DE ES

Battery Capacity Tester / EN
09/15/17 Version No. 00
CONTENTS
Title Page
1. FEATURES......................................................................................................................1
2. NAMES AND FUNCTIONS OF PARTS...........................................................................2
3. SPECIFICATIONS ...........................................................................................................6
3-1 General Specifications ..............................................................................................6
3-2 Electrical Specifications.............................................................................................7
4. OPERATION....................................................................................................................9
4-1 Operation...................................................................................................................9
4-2 Zero Adjust Function ...............................................................................................10
4-3 HOLD and Auto – HOLD Functions.........................................................................12
4-4 Moving Average Function........................................................................................12
4-5 DC Current Measurement........................................................................................12
4-6 Disable Auto Power off Function .............................................................................13
4-7 Setting the Real Time..............................................................................................13
5. USING COMPARATOR FUNCTION (99 SETS)............................................................14
5-1 Comparator..............................................................................................................14
5-2 Comparator Settings................................................................................................14
5-3 Comparator Tables..................................................................................................15
5-4 Activating the Comparator.......................................................................................15
5-5 Battery State of Charge Indication...........................................................................15
6. BATTERY CHARGE/DISCHARGE CAPACITY MEASUREMENT ...............................16
7. DATA CAPTURE...........................................................................................................17
7-1 Manual and Auto STORE mode..............................................................................17
7-2 LOGGING mode......................................................................................................19
8. MAINTENANCE.............................................................................................................20
8-1 Cleaning ..................................................................................................................20
8-2 Battery installation or replacement ..........................................................................20
9. USB INTERFACE, SOFTWARE INSTALLATION AND OPERATION..........................21
10. BATTERY REFERENCE TABLE.................................................................................22

Battery Capacity Tester / EN
09/15/17 Version No. 00
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1. FEATURES
The Battery Tester is designed for measuring the internal resistance, open-circuit
voltage, and terminal temperature of rechargeable batteries (secondary cells),
including lead–acid, Nickel-Cadmium, Lithium-ion and Nickel-metal hydride batteries.
An AC four-terminal method is used to measure the internal resistance eliminating
lead and contact resistances to ensure accurate results.
4-wire probe type lead set and 4 wire crocodile clip lead sets are supplied as standard
ensuring accurate measurement.
Simultaneous display of the internal resistance and voltage of the battery under test
Comparator function compares the measured battery values with user preset high and
low limit values and indicates the condition and state of charge of the battery.
Clamp adaptor for DC current measurements.
 Manual and auto data memory and read stores up to 999 data sets.
 Auto datalogging micro SD CARD 4GB up to 99 blocks.
USB PC interface

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2. NAMES AND FUNCTIONS OF PARTS
Switches and input terminals
1. LCD display.
2. key :
to turn the beeper on or off.
to decrease the displayed value.
press for >2 seconds to change the temperature units.

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3. ⊳key :
to store one set of readings to memory.
to move the cursor to the left.
press for 2 seconds to go into auto-memory STORE mode, press this key again to
exit.
press for 4 seconds to go into continuouse data logging mode, press this key again
to exit.
4. Zero key :
to turn the zero adjustment function on or off.
to increase the displayed value.
5. key :
to go into manualrecorded data reading mode,press this key again toexit.
to move cursor to the right.
6. TIME key :
to change the day-hour, minute:seconds.
press for 2 seconds to go into real-time setting mode, press this key again to exit.
press for 6 seconds to set the time interval for auto-memory STORE and continuous
data logging mode. Press this key again to exit.
7. COMP key :
 to turn the comparator function on and off.
press for 2 seconds to go into comparator setting mode, press this key again to exit.
8. HOLD key :
to turn the data hold function on or off.
press for 2 seconds to turn the auto-hold function on, press this key again to exit.
9. Rotary switch : Power on/off and resistance range selector switch.
10. AC adaptor input jack : Connects to the black plug of the ac mains adaptor.
11. DCA CLAMP ADAPTOR input jack : Connects to the yellow plug of the DCA
current clamp.
12. TEMP. SENSOR input jack : Connects to the blue plug of the clip type test lead.
13. SENSE – input terminal : Connects to the blue banana plug of the test lead.
14. SENSE + input terminal : Connects to the yellow banana plug of the test lead.
15. SOURCE – input terminal : Connects to the black banana plug of the test lead.
16. SOURCE + input terminal : Connects to the red banana plug of the test lead.
17. USB cable interface : PC interface connector.

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Display
1. : Auto power off function is enabled.
2. 0ADJ : Resistance zero adjustment function is on.
3. HOLD : Display is locked.
4. AUTO-HOLD : Auto-hold function is on.
5. AM : Auto-memory function is on.
6. AVG : Average function is on.
7. : Beeper is turned on.
8. : The battery is low.
9. –mΩV: Measured voltage or comparator resistance high limit setting.
10. mΩ: Measured resistance or comparator resistance low limit setting.
11. –VA : Measured DC current or comparator voltage high limit setting.

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12. –V ℃℉ : Measured temperature or comparator voltage low limit setting.
13. IN-CAP mAh : Measured battery charge capacity.
14. OUT-CAP mAh : Measured battery discharge capacity.
15. T-CAP mAh : Measured battery total capacity.
(T-CAP) = (IN-CAP)-(OUT-CAP)
16. 100% : The calculated remaining capacity of the battery.
17. COMP : Shown when the comparator function is on.
18.
NO.
: Indicates the number of data memory (1-999) or the comparator table
number (1-99).
19. : Flashes once when data is stored to memory.
20. : Shown when the read function is on.
21.
÷
: Indicates the elapsed time or the real time (day : hour : minute : seconds).
22. PASS : Indicates that the tested battery is satisfactory for operation.
23. WARNING : Indicates that the tested battery is beginning to deteriorate.
24. FAIL : Indicates that the tested battery has deteriorated.
25. INTV : Shown when setting memory interval time function is on.
26. TIME : Shown when setting real time function is on.

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3. SPECIFICATIONS
3-1 General Specifications :
Measuring method : Resistance : AC four – terminal method.
Temperature : NTC thermistor.
DC current : Hall effect sensor.
A/D conversion : Dual slope method.
Display : LCD
Sampling rate : 1.3 sets (resistance, voltage, temperature and DC current
measurements)/second.
Open-circuit terminal voltage : 5V max.
Input over range : “OL” display.
Low battery detection :“”is displayed.
Test current fault detection : “- - - -” display.
Auto power off : If no key operated for 10 minutes.
Averaging function : OFF, 4, 8 or 16 times.
Beeper function : for warning and fail results (can be turned on or off).
Comparator settings : Resistance / Voltage High / Low limits.
Number of comparator settings : 99 sets.
Comparator output : LCD display of PASS, WARNING, or FAIL results and beeper for
warning and fail results.
Resistance
Voltage Lo Middle Hi
Lo WARNING WARNING FAIL
Hi PASS WARNING FAIL
Manual and Auto Data memory : 999 sets (can be read by meter and downloaded by
PC).
Auto Datalogging :
micro SD CARD 4GB ( maximum 99 blocks)
Operating environment : 0 to +40°C 80%RH (non condensing)
Storage environment : -10 to +50°C 80%RH (non condensing)

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Power source: Meter→six AA size 1.5V alkaline batteries.
DCA current adaptor→one 9V PP3 battery.
Maximum power consumption : 1.0VA
Continuous operating time : 5.5 hours approx.
Maximum altitude : 2000m or less.
Size : Meter→H198 × D49 × W94mm
DCA current adaptor →H193 × D31 × W69mm
Weight : Meter →530g approx. (including batteries)
DCA current adaptor →240g approx. (including batteries)
Accessories : Clip – type test lead with temperature sensor, Probe – type test lead,
DCA current adaptor, Zero adjustment board, Instruction manual,
batteries, AC adaptor, USB cable, CD PC software, Carrying case.
3-2 Electrical Specifications
Conditions to guarantee accuracy :
Temperature : 23°C ± 5°C
Humidity : 80%RH or less (non condensing).
Temperature coefficient : 0.10 x (specified accuracy) / °C . (<18 °C or > 28 °C )
Zero adjustment : After zero adjustment for each range.
Resistance measurement
Range Resolution Measurement current Accuracy
4mΩ1µΩ40mA approx.
± (3% reading ±
20 digits)
40mΩ10µΩ40mA approx.
400mΩ100µΩ4mA approx.
4Ω1mΩ400µA approx.
40Ω10mΩ40mA approx.
400Ω100mΩ4µA approx.
± (0.8% reading ±
6 digits)
Measuring current frequency : 1kHz ± 30Hz

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
Voltage Measurement
Range Resolution Accuracy
6V 1mV
60V 10mV
± (0.1% reading ± 6digits)
Maximum Input Voltage : 60VDC maximum, No AC voltage input.
CAUTION
Do not exceed the maximum permissible input voltage to the measurement terminal.
This could result in injury or damage to the unit.

Temperature Measurement
Range Resolution Accuracy
-20 to +60°C
-4 to +140°F 0.1°C 0.1°F ±1.0°C
±1.8°F

DC Current Measurement
Range Sensitivity Resolution Accuracy
600A 0.6A to 600.0A 0.1A ±(2.0%reading±2digit)

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4. OPERATION
4-1 Operation
WARNING
Do not attempt to measure DC voltage exceeding 60V. Do not attempt to
measureAC voltages. This could result in injury or damage to the unit.
Do not attempt to measure the voltage of a generator. This would result in an
AC voltage being applied to the voltage generating output terminals, which is
dangerous.
After measuring a high voltage battery, short the measurement leads together
before continuing to measure a low voltage battery. This will discharge the
internal capacitance of the Tester. Otherwise an excess voltage may be
applied to the low voltage battery, which is dangerous.
1. Connect the RED test lead to the SOURCE + terminal,
i. the BLACK test lead to the SOURCE – terminal,
ii. the YELLOW test lead to the SENSE + terminal, and
iii. the BLUE test lead to the SENSE – terminal.
2. Connect the BLUE miniature plug of the clip type test lead with temperature
sensor to the TEMP. SENSOR jack.
3. Rotate the resistance range switch to the desired position.
4. Carry out the zero adjustment (for detail, see section 4-2).
5. Connect either the red probe / crocodile clip of the test lead to the positive (+) side
of the battery to be tested and the black probe / crocodile clip to the negative (–)
side.
Note: both test lead types utilize a 4 wire connection method; the outer shield
conductor of the probe or one jaw of the clip connects to the SOURCE terminals
and the inner pin of the probe or the second jaw of the crocodile clip connects to
the SENSE terminals.
When using the probe type test leads push each probe firmly onto the battery
terminal to ensure that the inner pin and outer metal sleeve make full contact with
the respective battery terminal.
When using the clip type leads ensure both jaws of each crocodile clip make
contact with the respective battery terminal.

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Use the clip type test lead with integral temperature sensor to display the battery
terminal on the Tester.
6. Read the battery internal resistance, DC voltage and temperature directly from the
display.
7. Press “ ” key for 2 seconds to change the displayed temperature unit.
Note When the measured DC voltage or battery internal resistance value is
overloaded, “OL” is displayed
If the resistance reading shows “- - - -” an AC test current fault has occurred
and a measurement could not be made. This may be due to a break in the
test circuit, or due to the leads not making a good contact with the object
being measured. This may also happen if the resistance is extremely large
compared to the measurement range.
4-2 Zero Adjust Function
The zero adjustment function is used to zero the resistance range. The reading taken
during the zero adjust procedure will be taken as zero and will be used to calibrate
subsequent measurements.
4-2-1 Probe -type Test Lead Zero Adjustment
Using the supplied zero adjustment board, zero adjustment can be carried out
using the AC four terminal method.

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1. Turn the resistance range switch to the desired position.
2. Press “Zero” key to start the zero adjustment function, the flashing “ 0ADJ ”
symbol is displayed.
3. Push the pin type test leads onto two holes in the zero adjustment board (see
illustration below). Choose holes symmetrically on both sides of the centre screw,
so that the distance between the leads is about equal to the distance when
measuring the battery terminals.
About equal to the distance when
measuring the battery terminals
Contact with SENSE
Contact with SOURCE
4. When the resistance reading is lower that 200 digits and stable, the zero
adjustment is automatically carried out, the “ 0ADJ ” stops flashing and the
beeper sounds.
5. Press “Zero” key to exit this function.
6. Remove the pin type test leads from the zero adjust board and connect the leads
to the battery to start taking measurements.
Note If the terminal spacing of the battery to be measured is larger than the zero
adjustment board, use the outer most holes for adjustment.
The zero adjustment is valid for the currently selected range for as long as the
power remains on. Turning the meter off will reset all zero adjustment values.
4-2-2 Clip – type Test Lead Zero Adjustment
1. Short the SOURCE and SENSE of the clip type test lead with temperature sensor
together as shown in the figure below.
2. The rest of the procedure is the same as the probe-type test lead zero adjustment.

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4-3 HOLD and Auto – HOLD Functions
4-3-1 Hold function
1. Press HOLD key, “ HOLD ” appears on the display and display is locked.
2. Press HOLD key again to exit.
4-3-2 Auto – hold function
1. Press HOLD key for2 seconds to activate the auto-hold function, “ AUTO-HOLD ”
appears on the display.
2. The meter holds the reading on the display until it detects a new stable reading.
The meter then beeps and displays the new reading. When the measured
readings are stable, “ HOLD ” appears on the display.
3. Press HOLD key again to exit.
4-4 Moving Average Function
If the resistance measurement value is unstable, this can be corrected with the
moving average function.
1. Press and hold down TIME key, then rotate the resistance range switch to any
range to turn on the meter, to samples select mode, “SET” appears on the display.
2. Press / key to select desired number of samples for average time. Samples
of “4”, “8” and “16” are allowed. To stop the averaging function select “OFF”
3. Press TIME key again to store the setting and exit.
4-5 DC Current Measurement
1. Connect the yellow miniature plug of the DCA current adaptor to the meter DCA
CLAMP ADAPTOR jack.
2. Press POWER key of the DCA current adaptor to turn on the adaptor, the
POWER LED will come on. If the LOW BATTERY LED comes on, the battery
should be replaced.
3. Make sure the current adaptor jaws are empty, then press ZERO key to null out
stray magnetism, the LCD should then show 0.0A.

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4. Clamp the current adaptor jaws around one of the conductors under test. Make
sure that the jaws are perfectly closed.
5. Read the current value from the meter.
4-6 Disable Auto Power off Function
If no switch is operated for 10 minutes, the meter automatically turns off.
Auto data memory and continuous data logging modes will disable the auto power off
function.
For continuous measurement, in some case it may be necessary to disable the auto
power off function.
1. Rotate the resistance range switch to OFF position to turn off the meter.
2. Press and hold down “HOLD” key, then rotate the resistance range switch to any range
to turn on the meter, the “ ” symbol will disappear.
4-7 Setting the Real Time
1. Press TIME key 2 seconds, “SET TIME” appears on the display.
2. Press ,, ⊳and keys to set up the real time
day : hour : minute :second.
3. Press TIME key again to store the settings and exit.

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high limit voltage
low limit resistance
low limit voltage
comparator number
5. USING COMPARATOR FUNCTION (99 SETS)
5-1 Comparator
The comparator function compares the measured values with preset High and Low
limit values for internal resistance and voltage. If the measured values are within the
set limits the PASS symbol is displayed. If the measured values are outside limits the
WARNING or FAIL symbol is displayed and the beeper is sounded..
5-2 Comparator Settings
1.Rotate the range switch to any resistance range.
2.Press and hold down the “COMP” key for 2 seconds, the display will show
“COMP” in the comparator setting mode.
3.Use or key to change the comparator number, from 01 up to 99.
4.Press key once, the first digit on the high limit resistance will start flashing, use
the & keys to select the desired value. Repeat this step to set the next three
digits, the decimal point, and the resistance units.
5.Press key once, the first digit on the low limit resistance will start flashing, use
the and keys to select the desired value. Repeat this step to set the next
three digits, the decimal point, and the resistance units.
6.Press key once, the first digit on the high limit voltage will start to flash, use the
and keys to select the desired value. Repeat this step to set the next three
digits and the decimal point.
7.Press key once, the first digit on the low limit voltage will start to flash, use the
and keys to select the desired value. Repeat this step to set the next three
digits and the decimal point.
8.Repeat step 3 to step 7 to set the next comparator number.
9.Press COMP key again to exit.
high limit resistance

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5-3 Comparator Tables
Resistance
Voltage
Low limit resistance High limit resistance
Lo Middle Hi
WARNING
Beeper WARNING Beeper FAIL Beeper
Voltage Lo
Comparison
Value Hi Pass WARNING
Beeper FAIL Beeper
Voltage comparison value = (High limit voltage value + Low voltage value)/2
5-4 Activating the Comparator
1. Press key to turn the sounder on, the indication will appear on the
display, and the beeper will sound when a WARNING or FAIL result is received.
Press key again to set the beeper off.
2. Press COMP key to start comparator function, the “COMP” indication will appear
on the display, and the comparator will start operating once a measurement is
taken.
3. Press the and keys to select the desired comparator number (01 – 99). The
selected comparator number remains in memory even if the power is turned off.
4. Press COMP key again to stop the comparator function.
5-5 Battery State of Charge Indication
The instrument calculates the battery state of charge (SOC) percentage by
comparing the measured battery voltage and resistance values with the comparator
settings for battery high limit resistance, low limit resistance, high voltage limit, and
low voltage limit values as specified in 5-2.

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6. BATTERY CHARGE/DISCHARGE CAPACITY MEASUREMENT
1. Disable auto power off function (see section 4-6).
2. Perform the DC current measurement (see section 4-5 in steps 1 – 3).
3. Connect the fully discharged battery to the battery charger. Clamp the DCA
current adaptor transducer jaws around the “+” terminal.
4. Power on the battery charger, the meter will display the charge current value with a
plus sign and the battery accumulated charging capacity (IN–CAP).
5. Connect the battery load to the battery. Clamp the DCA current adaptor
transducer jaws around the “+” conductor.
6. The meter will display the discharge current value with a minus sign and the
battery accumulated discharge capacity (OUT–CAP).
7. The battery charge / discharge remaining capacity is :
(T–CAP) = (IN–CAP) – (OUT–CAP)

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7. DATA CAPTURE
7-1 Manual and Auto STORE mode
Up to 999 sets of measured values can be manually or automatically STORED in the
Tester for subsequent recall and display on the Tester.
STORED values can also be uploaded to a PC via the USB interface and
BatCapTester software.
7-1-1 To manually STORE data to theTester memory
Press the Mmomentarily tomanuallystore readings one by one to the Tester.
“NO. XXX M ” will appear on the display for one second showing the memory
location.
NO.
7-1-2 To automaticallySTORE data to the Tester memory
1. Press TIME key for 4 seconds, the display will show SET INTV. Use the or 
keys to select the desired interval time from 3 second to 255 seconds. Press TIME
key to exit.
2. Press Mkeyfor 2 seconds to start the auto STOREmode, the “ AM ” symbol is
shown on the display. When a reading is stored the “NO. XXX M ” will be shown on
the display for one second to showthe memory location.
3. Press Mkey to exit.
NO.