Midtronics MDX-500 SERIES User manual

INSTRUCTION MANUAL
MDX-500 SERIES
FOR 12-VOLT AUTOMOTIVE STARTING BATTERIES AND STARTING/CHARGING SYSTEMS
Battery Conductance and Electrical System Analyzer
A

TABLE OF CONTENT
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Midtronics B.V. Hoofdveste 6 3992 DG HOUTEN
12
11
START-STOP TEST RESULTS
STARTER SYSTEM TEST
STARTER SYSTEM TEST RESULTS
CHARGING SYSTEM TEST
CHARGING SYSTEM TEST RESULTS
STARTING THE TESTER FOR THE
FIRST TIME
SAFETY
GENERAL PRECAUTIONS
INSPECTING THE BATTERY
TESTING OUT-OF-VEHICLE
TESTING IN-VEHICLE
CONNECTING TO THE BATTERY
SETTING USER PREFERENCES
CONNECTIONS AND DATA PORTS
CAPABILITIES
REMOVING AND INSERTING THE
DATA CARD
DISPLAY AND KEYPAD
DATA ENTRY METHODS
MENU ICONS, OPTIONS BUTTONS, SCROLLING
LISTS, ALPHANUMERIC ENTRIES
MENU
BATTERY TEST RESULTS
NEW BATTERY TEST RESULTS
CHAPTER 1:
BEFORE YOU BEGIN
CHAPTER 6:
START-STOP TEST
CHAPTER 3:
TEST PREPARATION
CHAPTER 2:
OVERVIEW CHAPTER 4:
BATTERY TEST
CHAPTER 5:
NEW BATTERY TEST
CHAPTER 7:
SYSTEM TEST
CHAPTER 9:
TEST MESSAGES
CHAPTER 10:
ERROR MESSAGES
CHANGING THE CABLE ASSEMBLY
CHANGING THE PRINTER PAPER
PRINTER TROUBLESHOOTING
TROUBLESHOOTING THE DISPLAY
REPLACING THE BATTERY
CHAPTER 11:
MAINTENANCE & TROUBLESHOOTING
3
4 - 5
6
7
8
9
10
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When the tester is rst used the operator is asked to enter
a couple of items such as language, date and me. Changes
can be made aerwards by going in to the Ulity Menu and
selecng CONFIG TESTER.
Because of the possibility of personal injury, always use
extreme caution when working with batteries. Follow
all manufacturers’ instructions and BCI (Battery Council
Internaonal) safety recommendaons.
GENERAL PRECAUTIONS
•Baery acid is highly corrosive. If acid enters your eyes,
immediately ush them thoroughly with running cold
water for at least 15 minutes and seek medical aenon.
If baery acid gets on your skin or clothing, wash imme-
diately with water and baking soda.
•Always wear proper safety glasses or face shield when
working with or around baeries.
•Keep hair, hands, and clothing as well as the analyzer
cords and cables away from moving engine parts.
•Remove any jewelry or watches before you start servic-
ing the baery.
•Use cauon when working with metallic tools to prevent
sparks or short circuits.
•Never lean over a baery when tesng, charging or jump
starng it.
CHAPTER 1:
BEFORE YOU BEGIN PERSONAL PRECAUTIONS
Baeries can produce a highly explosive
mix of hydrogen gas and oxygen, even
when the baery is not in operaon.
Always work in a well-venlated area.
The tester is manufactured in line with the latest state of
the art and according to recognised safety standards. If used
incorrectly or misused, however, it can cause
• injury or death to the user or a third party,
• damage to the tester and other material assets
belonging to the operator,
• inecient operaon of the tester.
All persons involved in commissioning, operang, maintaining
and servicing the tester must
• be suitably qualied,
• have knowledge of and experience in dealing with
testers and baeries and
• read and follow these operang instrucons
carefully.
STARTING THE TESTER FOR
THE FIRST-TIME
SAFETY
The safety symbol followed by the
word WARNING or CAUTION
indicates instrucons for avoiding
hazardous condions and personal
injury.
The word CAUTION indicates
instrucons for avoiding equipment
damage.
The wrench symbol indicates
procedural notes and helpful
informaon.
The text for keypad buons and
so-key funcons are in bold capital
leers.
The text for screen opons are in
regular capital leers
Symbol Descripon
CAUTION
UP ARROW
CAPITAL LETTERS
SYMBOLS CONVENTIONS

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CHAPTER 2:
OVERVIEW
CAPABILITIES
The tester tests 6 and 12-volt regular ooded, AGM at plate,
AGM spiral, and GEL baeries. It displays the test results in
seconds and features a built-in printer to provide customers
with a copy of the results.
Addional features include the ability to:
• test the Starng and Charging system
• test baeries from rated from 100 to 1200 CCA
• detect bad cells
• protect against reverse polarity
• test discharged baeries
• test mulple rang systems
• provide a mul-lingual user interface.
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4
5
6
7
8
9
Integrated thermal
printer
Release lever for the
paper compartment
Paper slot
LCD screen
Keypad
Baery test cable
Spring-loaded data card
slot for test data storage
and soware upgrades.
Infrared temperature
sensor with a range of
-28 °C to +93 °C (-20 °F to
+200 °F)
Data transmier: sends
results to a PC using an
oponal hardware and
soware kit.
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2
3
4
5
6
7
8
9
CONNECTIONS AND DATA PORTS
REMOVING AND INSERTING
THE DATA CARD
The analyzer ships with a plasc insert in the data card slot to
protect it from dust and debris. To remove the plasc insert
or a data card, push briey on its edge to release it and pull it
from the slot.
When inserng a card, push it into the slot unl it locks.
The card is correctly inserted when it is not protruding from
the slot. To protect the card slot and enable the analyzer to
read and write to the card, leave the card in the slot.
When you rst connect the tester to a baery, it funcons as
a voltmeter unl you press the ENTER buon.
IMPORTANT: If you connect the tester to a voltage source
greater than 30 Vdc, you may damage the tester’s circuitry.
The menu-driven display will then guide you step by step
through the test process. Use the keypad buons to scroll to
and select opons in the menu.
To turn o the tester when not connected to the baery,
briey press and hold the MENU buon.
DISPLAY AND KEYPAD
UP and DOWN ARROWS
Use these keys to choose test parameters
and scroll to menu opons.
ENTER Buon
Use this buon to make selecons.
BACK/PRINT Buon
Use this buon to move to the previous
screen or move back one space when
creang custom headers. You can also
use this buon to printout test results
using the built-in printer.
MENU Buon
Use the MENU buon to access the Main
Menu opons of the tester.
For informaon about the opons, see
“Opons Menu”.

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CHAPTER 2:
OVERVIEW
DATA ENTRY METHODS
To perform a parcular test or funcon, the tester will ask for
dierent types of informaon. This means that the methods
you use to enter information will change depending on
the type of informaon requested. The four types of entry
methods are described below.
Typically, the so key below the right half of the screen
conrms your choice, although the word above it may vary. In
a similar fashion, the so key below the le half of the screen
cancels your choice or returns you to the previous screen,
although the word above it may also vary.
MENU ICONS
A menu icon is a graphical representaon of a funcon you
can select. To select an icon, use the LEFT or RIGHT ARROW
key to highlight it. Highlighng changes the icon to a white
picture on a black background. To conrm your selecon,
press the appropriate so key.
OPTION BUTTONS
Some lists have opon buons before each item. To select
an item, use the UP/DOWN ARROW keys to move the dot
into the buon next to the item you want. You can also use
the alphanumeric keypad to enter the number preceding
the option button. To confirm your selection, press the
appropriate so key.
SCROLLING LISTS
Scrolling lists contain items that extend above and below the
screen or the selecon box that contains them. To indicate
that there are more items, the symbols UP/D OW N appear to
the right of the rst visible or highlighted item on the list.
To select from this type of list, use the UP/DOWN ARROW
keys to scroll to the item, or use the keypad to enter your
choice, and press the appropriate so key.
Press the MENU buon to access
the Opons Menu.
Use the UP and DOWN arrows to
move to the line you want to edit.
Press the ENTER buon to make
highlighted line editable.
Use the UP and DOWN arrows to
select the character for that cursor
locaon.
Press the ENTER buon to move to
the next locaon.
Press the MENU buon to return to
the Opons Menu.
MENU
ALPHANUMERIC ENTRIES
Even though the tester does not use an alphanumeric keypad
it is possible to enter alphanumeric values. When applicable
the alphanumeric values appear on the display. Use the UP/
DOWN or LEFT/RIGHT ARROW keys to scroll and conrm
this with the > key. To return one or more steps use the < key.
Opon Explanaon
VIEW/PRINT Display the previous test result. Press the
PRINT buon to print the results.
PERFORM
TEST
Begin the Baery Test procedure.
LANGUAGE Select a language for the tester.
SET
ADDRESS
Enter the address to display on the top of
the printout. (Limit: 8 lines, 21 characters
per line)
SET TIME Select 24-hour or AM/PM and set the
me.
SET DATE Select the date format as well as set the
correct date.
COUNTER Clear or display baery and system test
by results.
CONTRAST Adjust the contrast seng of the tester
display.
TEMP. UNITS Select the temperature units Degrees F or
Degrees C
VOLTMETER Automacally test baery voltage
when the clamps are rst connected to
the baery terminals. Press ENTER to
connue tesng the baery. Press BACK
to return to return oto the menu.

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CHAPTER 3:
TEST PREPARATION
INSPECTING THE BATTERY
Before starng the test visually inspect the baery for:
•Cracked, buckled, or leaking case. If you see any of these
defects, replace the baery.
•Corroded, loose, or damaged cables and connecons.
Repair or replace them as needed.
•Corrosion on the baery terminals, and dirt or acid on
the case top. Clean the case and terminals using a wire
brush and a mixture of water and baking soda.
•Low electrolyte level. If the electrolyte level is too low,
add dislled water to ll up and fully charge the baery.
Do not overll.
•Corroded or loose baery tray and hold-down xture.
Tighten or replace as needed.
TESTING OUT-OF-VEHICLE
(BATTERY TEST)
The preferred baery test locaon is in the vehicle. However,
if you plan to test out of the vehicle:
• Always disconnect the negave cable from the baery
rst and reconnect it last.
• Always use a carry tool or strap to li and transport the
baery.
CONNECTING TO THE BATTERY
CAUTION: DO NOT CONNECT THE TESTER TO A VOLTAGE
SOURCE GREATER THAN 30 VDC.
Connect the clamps to the baery: the red clamp to the
posive (+) terminal and the black clamp to the negave (–)
terminal.
If you connect the clamps in the wrong polarity (posive to
negave or negave to posive), the tester displays CLAMPS
REVERSED! Reconnect the clamps correctly.
To make sure both sides of the clamps are gripping the
terminals, rock the each clamp back and forth. A poor
connecon will prevent tesng, and the tester will display
the message CHECK CONNECTION. If the message reappears
aer you have correctly reconnected the clamps, clean the
terminals and reconnect.
SETTING USER PREFERENCES
Before starng your test you may want to customize the use
of your analyzer by seng preferences. The menu has sengs
for the display’s date, me and contrast, among others.
To conser ve the analyzer’s internal baeries, the
tester will turn o aer 30 seconds of inacvity.
TESTING IN-VEHICLE
(SYSTEM TEST)
The preferred test posion is at the baery posts.
AT THE START OF THE TEST, MAKE SURE ALL VEHICLE
ACCESSORY LOADS ARE OFF, THE KEY IS NOT IN THE
IGNITION, AND THE DOORS ARE CLOSED.

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CHAPTER 4:
BATTERY TEST
The tester guides you through the steps of selecng your
baery test parameters and interpreng the results. Before
you start the test, review the instrucons in Chapter 3: Test
Preparaon.
1. In the Main Menu select the PERFORM TEST.
Press the ENTER so key to connue.
2. Select BATTERY TEST.
BATTERY TEST
NEW BATTERY TEST
  START-STOPTEST
Press the ENTER so key to connue.
3. Select the BATTERY LOCATION.
IN VEHICLE
OUT OF VEHICLE
Press the ENTER so key to connue.
4. Select the BATTERY TYPE.
REGULAR FLOODED
AGM FLAT PL ATE
AGM SPIRAL
GEL
Press the ENTER so key to connue.
5. Select the baery's capacity rang standard. The stan-
dard, and the rang units required are printed on the bat-
tery label. If the informaon is unreadable, contact the
baery manufacturer.
EN
DIN
SAE
IEC
JIS
BATTERY STANDARDS
If you select JIS, the analyzer asks for the JIS part
number. Scroll to the part number. To increase your
scrolling speed, hold the UP or DOWN ARROW key,
or use the LEFT or RIGHT ARROW key to move up or
down four part numbers at a me.
Press the ENTER so key to connue.
6. Press an UP or DOWN ARROW key to select the
BATTERY R ATING.
7. Press ENTER to start test. Aer several seconds the
tester displays the decision on the baery's condion
and the measured voltage. The tester also displays your
selected baery rang and the rang units.
8. The temperature queson is asked only if it can impact
the test result.
Decision Interpretation
GOOD
BATTERY
Return the baery to service.
GOOD-
RECHARGE
Fully charge the baery and return it to
service.
CHARGE &
RETEST
Fully charge the baery and retest.
Failure to fully charge the baery before
retesng may cause inaccurate results. If
CHARGE & RETEST appears again aer
you fully charge the baery, replace the
baery.
REPLACE
BATTERY
Replace the baery and retest. A
REPLACE BATTERY result may also
mean a poor connecon between the
baery cables and the baery. Aer
disconnecng the baery cables, retest
the baery using the out-of-vehicle test
before replacing it.
BADCELL-
REPLACE
Replace the baery and retest.
Press the ENTER buon to proceed, with the starter test,
BACK/PRINT to print the test results or MENU to return to
the Opons Menu.
NOTE: For an in-vehicle test, the display alternates between the
test results and the message “PRESS ENTER FOR STARTER TEST”.
See “Maintenence & Troubleshoong” in this manual for more
informaon about the printer.
IMPORTANT: The tester retains the results of the last test only.
When you start a new test, the last results are overwrien.
BATTERY TEST RESULTS
Rating
System Description Range
JIS Japanese Industrial Standard:
(shown on a baery as a
combinaon of numbers and
leers.)
from
26A17 to
245H52
EN(A) European Norm 100 to
1200
DIN(A) Deutsche Industrie-Norm 100 to 750
SAE(A) European labeling of CCA 100 to
1200
IEC(A) Internaonal Electrotechnical
Commission
100 to 750

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BATTERY STANDARDS
If you select JIS, the analyzer asks for the JIS part
number. Scroll to the part number. To increase your
scrolling speed, hold the UP or DOWN ARROW key,
or use the LEFT or RIGHT ARROW key to move up or
down four part numbers at a me.
Press the ENTER so key to connue.
6. Press an UP or DOWN ARROW key to select the
BATTERY R ATING.
500 EN (A)
7. Press ENTER to start test. Aer several seconds the
tester displays the decision on the baery’s condion
and the measured voltage. The tester also displays your
selected baery rang and the rang units.
8. The temperature queson is asked only if it can impact
the test result.
CHAPTER 5:
NEW BATTERY TEST
The tester guides you through the steps of selecng your
baery test parameters and interpreng the results. Before
you start the test, review the instrucons in Chapter 3: Test
Preparaon.
1. In the Main Menu select the PERFORM TEST.
Press the ENTER so key to connue.
2. Select NEW BATTERY TEST.
BATTERY TEST
NEW BATTERY TEST
  START-STOPTEST
Press the ENTER so key to connue.
3. Select the BATTERY LOCATION.
IN VEHICLE
OUT OF VEHICLE
Press the ENTER so key to connue.
4. Select the BATTERY TYPE.
REGULAR FLOODED
AGM FLAT PL ATE
AGM SPIRAL
GEL
Press the ENTER so key to connue.
5. Select the baery’s capacity rang standard. The stan-
dard, and the rang units required are printed on the bat-
tery label. If the informaon is unreadable, contact the
baery manufacturer.
EN
DIN
SAE
IEC
JIS
Decision Interpretation
GOOD
BATTERY
Return the baery to service.
GOOD-
RECHARGE
Fully charge the baery and return it to
service.
CHARGE &
RETEST
Fully charge the baery and retest. Failure
to fully charge the baery before retesng
may cause inaccurate results. If CHARGE &
RETEST appears again aer you fully charge
the baery, replace the baery.
REPLACE
BATTERY
Replace the baery and retest. A REPLACE
BATTERY result may also mean a poor
connecon between the baery cables and
the baery. Aer disconnecng the baery
cables, retest the baery using the out-of-
vehicle test before replacing it.
BADCELL-
REPLACE
Replace the baery and retest.
CYCLING
REQUIRED
Baery needs to be cycled for opmal
performance.
REST &
RETEST
Baery could have a surface charge,
because it has recently been charged.
Press the ENTER buon to proceed, with the starter test,
BACK/PRINT to print the test results or MENU to return to
the Opons Menu.
NOTE: For an in-vehicle test, the display alternates between the
test results and the message “PRESS ENTER FOR STARTER TEST”.
See “Maintenence & Troubleshoong” in this manual for more
informaon about the printer.
IMPORTANT: The tester retains the results of the last test only.
When you start a new test, the last results are overwrien.
NEW BATTERY TEST RESULTS
Rating
System Description Range
JIS Japanese Industrial Standard:
(shown on a baery as a
combinaon of numbers and
leers.
from 26A17
to 245H52
EN(A) European Norm 100 to 1200
DIN(A) Deutsche Industrie-Norm 100 to 750
SAE(A) European labeling of CCA 100 to 1200
IEC(A) Internaonal Electrotechnical
Commission
100 to 750

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CHAPTER 6:
START-STOP TEST
The tester guides you through the steps of selecng your
baery test parameters and interpreng the results. Before
you start the test, review the instrucons in Chapter 3: Test
Preparaon.
1. In the Main Menu select PERFORM TEST.
Press the ENTER so key to connue.
2. Select START-STOPTEST.
BATTERY TEST
NEW BATTERY TEST
  START-STOPTEST
Press the ENTER so key to connue.
3. Select the BATTERY LOCATION.
IN VEHICLE
OUT OF VEHICLE
Press the ENTER so key to connue.
4. Select the BATTERY TYPE.
ENHANCED FLOODED
AGM FLAT PL ATE
Press the ENTER so key to connue.
5. Select the BATTERY NUMBER. The opons depend on
the baery type under test. In case of 'OTHER' you have
to manually input the baery standard and rang.
Press the ENTER so key to connue.
6. Press ENTER to start test. Aer several seconds the tes-
ter displays the decision on the baery’s condion and
the measured voltage. The tester also displays your se-
lected baery rang and the rang units.
7. The temperature quesons is asked only if it can impact
the test result.
START-STOP TEST RESULTS
Decision Interpretation
GOOD
BATTERY
Return the baery to service.
GOOD-
RECHARGE
Fully charge the baery and return it to
service.
CHARGE &
RETEST
Fully charge the baery and retest.
Failure to fully charge the baery before
retesng may cause inaccurate results.
If CHARGE & RETEST appears again aer
you fully charge the baery, replace the
baery.
REPLACE
BATTERY
Replace the baery and retest. A
REPLACE BATTERY result may also
mean a poor connecon between the
baery cables and the baery. Aer
disconnecng the baery cables, retest
the baery using the out-of-vehicle test
before replacing it.
BADCELL-
REPLACE
Replace the baery and retest.
Press the ENTER buon to proceed, with the starter test,
BACK/PRINT to print the test results or MENU to return to
the Opons Menu.
NOTE: For an in-vehicle test, the display alternates between the
test results and the message “PRESS ENTER FOR STARTER TEST”.
See “Maintenence & Troubleshoong” in this manual for more
informaon about the printer.I
IMPORTANT: The tester retains the results of the last test only.
When you start a new test, the last results are overwrien.

10
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CHAPTER 7:
SYSTEM TEST
STARTER SYSTEM TEST
IMPORTANT: Before starng the test, inspect the alternator
drive belt. A belt that is glazed or worn, or lacks the proper
tension, will prevent the engine from achieving the rpm levels
needed for the test.
Once you have completed an in-vehicle test, the display
alternates between the baery test results and the message.
PRESS FOR STARTER TEST.
1. Press the ENTER buon to proceed with the starter
test.
2. Start the engine when prompted.
3. The display alternates between the decision on the
starter system and the measured voltage drop.
STARTER SYSTEM TEST RESULTS
Decision Interpretaon
CRANKING
NORMAL
The starter voltage is normal and the
baery is fully charged.
LOW
VOLTAGE
The starter voltage is low and the baery
is fully charged.
CHARGE
BATTERY
The starter voltage is low and the baery
is discharged. Fully charge the baery
and repeat the starter system test.
REPLACE
BATTERY
Baery must be replaced before the
starng system can be tested.
NO START No vehicle start detected.
CRANKING
SKIPPED
A start was not detected.
CHARGING SYSTEM TEST
Once you have completed an in-vehicle test the display
alternates between the test results and the message PRESS
FOR CHARGING TEST. Press the ENTER buon to proceed
with the charging test.
CHARGING SYSTEM TEST RESULTS
Decision Interpretaon
NO
PROBLEMS
System is showing normal output from
the alternator.
NO OUTPUT No alternator output detected.
• Check the belts to ensure the
alternator is rotang with the engine
running. Replace broken or slipping
belts and retest.
• Check all connecons to and
from the alternator, especially
the connecon to the baery. If
the connecon is loose or heavily
corroded, clean or replace the cable
and retest.
• If the belts and connecons are in
good working condion, replace
the alternator. (Older vehicles use
external voltage regulators, which
may require only replacement of the
voltage regulator.)
LOW OUTPUT Alternator not providing sucient current
to power the system’s electrical loads and
charge the baery.
• Check the belts to ensure the
alternator is rotang with the engine
running. Replace broken or slipping
belts and retest.
• Check the connecons from the
alternator to the baery. If the
connecon is loose or heavily
corroded, clean or replace the cable
and retest.
HIGH
OUTPUT
Alternator voltage output exceeds the
normal limits.
• Make sure there are no loose
connecons and the ground
connecon is normal. If there are
no connecon problems, replace
the regulator. Most alternators have
a built-in regulator that requires
replacing the alternator. In older
vehicles that use external voltage
regulators, you may need to replace
only the voltage regulator.
• The regulator controls voltage
output based on the baery voltage,
under-hood temperature, and
vehicle loads used. In other words,
it controls the maximum voltage
the system can produce based on
the current needs and amount of
current that can be produced by
the spinning of the rotor in the
alternator. The normal high limit
of a typical automove regulator
is 15.0 volts +/-0,5. Refer to the
manufacturer specicaons for the
correct limit, which may vary by
vehicle type.
• A high charging rate will overcharge
the baery and may decrease
its life and cause it to fail. If the
baery test decision is REPLACE
and the charging system test shows
CHARGING VOLTAGE HIGH, check
the baery's electrolyte levels. A
symptom of overcharging is baery
uid spewing through the vent caps,
which causes low electrolyte levels
and harms the baery.

11
Midtronics B.V. Hoofdveste 6 3992 DG HOUTEN
www.midtronics.com
CHAPTER 8:
TEST MESSAGES
For a more decisive result, the tester may prompt you for
addional informaon. The messages in the following table
may appear before the tester can display a result.
Test Message Interpretation
BAT.
TEMPERATURE
Select ambient temperature above
or below 0 degrees Celsius.
CHARGE STATE Select before or aer baery has
been charged.
SURFACE CHARGE
DETECTED
Remove the surface charge before
it begins tesng. Tesng will resume
aer charge has been removed.
CHECK
CONNECTION
One or both clamps are not making
proper contact with the baery
terminals.
ENGINE REV NOT
DETECTED PRESS
ENTER WHILE
REVVING
Tester has not detected an increase
in engine r.p.m.
REVERSE
CONNECTION
Clamps are connected in the wrong
polarity: posive to negave or
negave to posive.
UNSTABLE
BATTERY
Out-of-vehicle. Weak baery,
should be charged and retested.
WIGGLE CLAMPS Clamps are not making good
contact with baery terminals.

12
Midtronics B.V. Hoofdveste 6 3992 DG HOUTEN
www.midtronics.com
CHAPTER 9:
ERROR MESSAGES
Error Message Interpretation
BATTERY POWER
TOO LOW TO
USE PRINTER.
CONNECT TO
FULLY CHARGED
BATTERY 11.50 TO
16.00V
Baery being tested has fallen
below 9 volts. Connect to a fully
charged baery to use the printer.
CONNECT TO 12V
BATTERY
Tester is not connected to the
baery.
LOW INTERNAL
AA BATTERIES.
REPLACE AA
BATTERIES SOON!
Internal AA baeries are low
and need to be replaced. See
"Maintenance & Troubleshoong"
secon.
NON 12 VOLT
SYSTEM DETECTED
System being tested is not 12-volts.
PRINTER DOOR
OPEN. CLOSE
DOOR AND TRY TO
PRINT AGAIN
Door covering printer paper is not
secure.
PRINTER OUT OF
PAPER REPLACE
WITH THERMAL
PRINTER PAPER.
2.5 IN. DIA. MAX.
2.23 IN. WIDE
MAX.
Printer is out of thermal paper.
Replace with new roll. See
"Maintenance & Troubleshoong"
secon.

13
Midtronics B.V. Hoofdveste 6 3992 DG HOUTEN
www.midtronics.com
CHAPTER 10:
MAINTENANCE & TROUBLESHOOTING
CHANGING THE CABLE ASSEMBLY CHANGING THE PRINTER PAPER
1. Idenfy the circled screw.
2. Remove the screw.
3. Grasp the housing and rmly pull the cable assembly
from housing.
4. To aach a new cable, align the cable and tester housings
and push together. Insert the screw and ghten.
1. The IR printer only uses thermal paper in a roll with
the dimensions 2.25 in x 85  (57 mm x 25.9 m). You
can purchase replacement rolls at most oce supply
stores.
2. To replace the paper roll:
Unlock the printer door by gently pressing on the red
lever. Remove the spent roll.
3. Place a new roll of paper in the compartment, and pull
the paper forward so that it extends past the serrated
edge of the paper slot.
4. Close the door and make sure the lever locks securely.
paper
compartment
release lever: press in this direction
paper
sensor
paper feeds from
underneath the roll
PRINTER TROUBLESHOOTING
Error Message Interpretation
PRINTER OUT
OF PAPER
REPLACE WITH
THERMAL
PRINTER
PAPER.
2.5 IN. DIA.
MAX
2.25 IN. WIDE
MAX
• Verify that the paper is inserted
correctly.
• Insert a new roll of paper.
• Verify that the paper sensor is
clean and undamaged
BATTERY
POWER TOO
LOW TO USE
PRINTER.
CONNECT
TO FULLY
CHARGED
BAT TERY.
11.50V TO
16.00V
To print, the tester must be properly
connected to a vehicle baery having
at least 9 volts.
• Connect to a vehicle baery with
enough voltage to enable prinng.
• Make sure that the clamps are
connected properly: red clamp to
the posive (+) terminal and the
black clamp to the negave (-)
terminal.
• Check that both sides of the
clamps are making contact with
the terminals.
PRINTER DOOR
OPEN CLOSE
DOOR AND
TRY TO PRINT
AGAIN
• Check that the door covering the
printer paper is properly closed
and latched.
TROUBLESHOOTING THE DISPLAY
If the display does not turn on:
•Check the connecon to the vehicle baery.
•The vehicle baery may be too low (below 1 volt) to
power the analyzer. Fully charge the baery and retest.
•The analyzer’s AA baeries may need to be replaced
(alkaline recommended).
•If the analyzer does not power on when you press and
hold the MENU buon, replace the AA baeries.
The tester can test down to 5.5 volts when the unit’s internal
batteries are not functioning. The tester displays LOW
INTERNAL AA BATTERIES, REPLACE AA BATTERIES SOON!
when the internal AA batsteries need to be replaced.
NOTE: Setup informaon will be retained while you change
the internal baeries.
Use the following procedure to remove and replace the
internal AA baeries.
1. Turn the tester face down.
2. Remove the screw securing the baery compartment
cover using a small Phillips screwdriver.
3. Li the door o and remove the discharged baery.
4. Insert fresh AA baeries making sure the posive and
negave terminals are posioned correctly.
5. Reposion the cover and ghten the screw.
REPLACING THE BATTERY
If the tester is not connected to a 12-volt baery with at least
11.5 volts of power or the paper sensor does not detect paper in
the compartment during the print process, the tester displays
one of error messages described in the table:

The MDX series is made by Midtronics, Inc., and is protected by one or more U.S. and foreign patents.
For specic patent informaon, contact Midtronics, Inc. at [phone].
Midtronics products are warranted to be free of defects in materials and workmanship for a period of one (1) year from date of
purchase. Midtronics will, at our opon, repair or replace the unit with a re-manufactured unit. This limited warranty applies
only to Midtronics baery testers and does not cover any other equipment, stac damage, water damage, overvoltage, dropping
the unit, or damage resulng from extraneous causes including owner misuse. Midtronics is not liable for any incidental or
consequenal damages for breach of this warranty. The warranty is void if owner aempts to disassemble the unit or to modify
the cable assembly.
Willowbrook, IL USA
Phone: [phone]
Canadian Inquiries
Toll Free: [phone]
MIDTRONICS HEADQUARTERS MIDTRONICS B.V. EMEA MIDTRONICS CHINA MIDTRONICS INDIA
European Headquarters
Houten, The Netherlands
Serving Europe, Africa, the Middle East
Phone: [phone]
China Operaons
Shenzhen, China
Phone: [phone]
Navi Mumbai, India
Phone: [phone]/1513
Asia/Pacíc (excluding China)
Contact Corporate Headquarters
Phone: [phone]
2017 ©Midtronics, Inc. All rights reserved.
PATENTS
LIMITED WARRANTY
Midtronics B.V. Hoofdveste 6 3992 DG HOUTEN
www.midtronics.com