Do you have a question about the GR8-1200 OEM and is the answer not in the manual?
Questions and answers
Saul Ramos
April 3, 2025
Se me olvido la co trasera de mi gr8 como puedo ponernuna nueva o acceder al dispositivo?
1 comments:
Mr. Anderson
April 3, 2025
To access or replace the rear cover of a Midtronics GR8-1200 OEM:
1. Insert the screws through the holes in the cover and sheet metal. 2. Tighten the screws securely with a small screwdriver. 3. To remove the cables or cover, reverse the attachment instructions.
This allows you to remove or reattach the rear cover as needed.
Contents GR8-1200 OEM Contents Safety Guidlines Multitasking Wireless Multitasking General Safety Precautions Procedure Summary Personal Precautions Setting User Preferences Preparing To Charge The Battery Help Menu Grounding & Power Cord Connections Charger Location Chapter 4: Test Preparation DC Connection Precautions...
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Contents GR8-1200 OEM Chapter 8: ECM Power Supply Chapter 15: Admin Clock Chapter 9: Jump Start Mode Time Chapter 10: Manual Charging Format Date Chapter 11: Print / View Menu Entering A New User ID Deleting A User ID View Test Battery...
Safety Instructions GR8-1200 OEM Safety Guidlines General Safety Precautions IMPORTANT SAFETY INSTRUCTIONS. IT IS OF UTMOST Remove marine “boat” batteries and IMPORTANCE THAT BEFORE USING YOUR CHARGER, charge them on shore. YOU READ THIS MANUAL AND FOLLOW THE SAFETY Charging marine batteries on-board requires AND OPERATING INSTRUCTIONS EXACTLY.
Safety Instructions GR8-1200 OEM cal codes and ordinances. Non-rechargeable batteries may burst when charging causing Hazardous voltage. personal injury and damage. An improper connection can result in electric shock Only charge rechargeable lead-acid maintenance-free, low-maintenance or deep- To avoid electrical shock or burn, never alter the charger’s original AC cord and plug.
GR8-1200 OEM Safety Instructions Table 1: Recommended minimum AWG* size for extension cords for battery chargers AC input rating amperes AWG* size of cord Length of cord, feet (m) Equal or greater than: But less than: (7.6) (15.2) (30.5) (45.6) *American Wire Gauge 5.
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Safety Instructions GR8-1200 OEM 7.8 For positive-grounded vehicle, connect the NEGATIVE 8.1 Check the polarity of battery posts. POSITIVE (POS., P, +) (BLACK) clamp from the charger to the NEGATIVE (NEG., post usually has larger diameter than NEGATIVE (NEG., N, –) ungrounded post of battery. Then connect the POSI- N, –) post.
GR8-1200 OEM Chapter 1: Before You Begin Chapter 1: Before You Begin Battery acid is highly corrosive. If acid enters your eyes, im- Safety Reminder mediately fl ush them thoroughly with cold running water for at least 15 minutes and seek medical attention. If bat-...
Chapter 1: Before You Begin GR8-1200 OEM Conventions Used in This Manual To help you learn how to use your GR8, the manual uses these symbols and typographical conventions: Table 2: Symbols And Typographical Conventions Description Convention The safety symbol indicates instructions for avoiding hazardous conditions and personal injury.
Chapter 1: Before You Begin GR8-1200 OEM Center the holes on the bottom of the control module with the bolts, and lower the module onto the top of the bracket. Firmly pull the module down at an angle until the bolts are inserted securely into the slots extending from the module’s holes.
Chapter 2: Overview GR8-1200 OEM Chapter 2: Overview Front of GR8 The controls to the GR8 are accessible on the front of the charger: the control module (user interface) and the ON/OFF switch. Control module Backlit graphical display and keypad for data entry.
Chapter 2: Overview GR8-1200 OEM Back of GR8 In addition to containing the outlets for the charger cables and power cord, the back of the GR8 is the location for the serial numbers for the charger engine and the control module. Both numbers are necessary for warranty registration.
Chapter 2: Overview GR8-1200 OEM Display and Keypad The GR8 display and keypad work together to help you quickly fi nd and use the right tools at the right time. The display also keeps you on track with onscreen navigation aids, directions and messages.
GR8-1200 OEM Chapter 2: Overview Data Entry Methods Scroll Bar To perform a particular test or function, the GR8 requires Another navigational aid is the scroll bar on the right side of diff erent types of information. This means that the methods the screen.
Includes fourteen utilities, many of which customize your user interface. Provides a list of topics and defi nitions. Also includes Midtronics Customer Service phone numbers. *Menu icons marked with an asterisk (*) are mapped on the following pages.
GR8-1200 OEM Chapter 2: Overview Print/View Menu Info Menu Allows you to view and print battery results. The Info menu allows you to select Totals, Transfer results and view Software Version information. Table 5: Print/View Icons Table 6: Info Menu Icons...
Chapter 2: Overview GR8-1200 OEM Admin Menu The Admin Menu lets you customize your analyzer to suit your needs. Before testing, check default values to see what options you may want to change. Table 7: Admin Men Icons Menu Icon Description Settings to adjust the time.
GR8-1200 OEM Chapter 3: Getting Started Chapter 3: Getting Started Adding a User The instructions in this section will help you quickly put your GR8 to work. Use the DOWN ARROW key to scroll to ADD USER. Press the NEXT soft key to continue.
IR printer, This menu also provides troubleshooting information and among others. The admin utilities are described in Chapter 15 phone numbers for Midtronics Customer Service, in case you on page 40. encounter a problem and/or need technical assistance.
GR8-1200 OEM Chapter 4: Test Preparation Chapter 4: Test Preparation Inspecting the Battery Testing In-Vehicle (System Test) Before starting the test visually inspect the battery for: Before starting the test, inspect the alternator drive belt. A belt that is glazed or worn, or lacks the proper tension, will prevent •...
Chapter 5: Diagnostic Charging GR8-1200 OEM Chapter 5: Diagnostic Charging The GR8-1200 battery analyzer and diagnostic Use the UP or DOWN ARROW key to select the battery charger will determine the internal condition of a POST TYPE. battery before attempting to apply a charge to it.
GR8-1200 OEM Chapter 5: Diagnostic Charging Table 8: Battery Ratings Deep Scan Test In some cases the GR8 may need to further analyze the battery Ratings Description Range to determine whether the battery should be replaced or it has Cold Cranking Amps (specifi ed a signifi cant chance to be recovered.
Chapter 5: Diagnostic Charging GR8-1200 OEM Recovery Mode If charging at the side posts or jump start posts and the test data is inconclusive, the GR8 displays the decision JUMP In some cases the GR8 goes into Recovery Mode before dis- START POST or SIDE POST TEST.
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GR8-1200 OEM Chapter 5: Diagnostic Charging Table 9: Battery Decisions: Diagnostic Charge Decision Recommended Action GOOD BATTERY Return the battery to service. REPLACE BATTERY A REPLACE BATTERY result may also mean a poor connection between the battery and the vehicle. If you tested the battery using the System test, disconnect the battery cables and retest using the Battery Test before replacing it.
Chapter 6: System Test GR8-1200 OEM Chapter 6: System Test The GR8 guides you through the steps of selecting Use the UP or DOWN ARROW key to select the battery your battery test parameters and interpreting the POST TYPE. The JUMP START POST appears for the IN VE- results.
Fully charge the battery and return it to service. CHARGE & RETEST Fully charge the battery using a Midtronics Diagnostic Charger and retest. Failure to fully charge the battery before retesting may cause false readings. If CHARGE & RETEST appears again after you fully charge the battery, replace the battery.
Chapter 6: System Test GR8-1200 OEM Starter System Test Results Use the UP or DOWN ARROW key to scroll to each screen. To return to the Main Menu, press the END soft key. If you are Screen 1 of 2 performing a System Test, press the NEXT key to continue with the Starter System Test.
GR8-1200 OEM Chapter 6: System Test Charging System Test REV ENGINE WITH LOADS ON FOR 5 SECONDS: The ana- lyzer will test the charging system with the loads on and When you press NEXT in any test result screen, the analyzer prompt you to rev the engine.
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Chapter 6: System Test GR8-1200 OEM Table 13: Charging System Decisions Charging System Action Decision NO PROBLEMS The system is showing normal output from the alternator. No problem detected. NO VOLTAGE The alternator is not providing charging voltage to the battery.
GR8-1200 OEM Chapter 7: Battery Test Chapter 7: Battery Test Test Requirements Select the POST TYPE. The JUMP START POST option ap- pears for the IN VEHICLE test. The GR8 guides you through the steps of selecting TOP POST your battery test parameters and interpreting the results.
Chapter 7: Battery Test GR8-1200 OEM If you select JIS, the analyzer will ask for the JIS part Additional Test Requirements number. Scroll to the part number. To increase your For a more decisive result the analyzer may ask for additional scrolling speed, hold the UP or DOWN ARROW key, or use information or further explore the battery’s condition.
Fully charge the battery and return it to service. CHARGE & RETEST Fully charge the battery using a Midtronics Diagnostic Charger and retest. Failure to fully charge the battery before retesting may cause false readings. If CHARGE & RETEST appears again after you fully charge the battery, replace the battery.
Chapter 8: ECM Power Supply GR8-1200 OEM Chapter 8: ECM Power Supply Power Supply Mode tests and maintains battery Press the NEXT soft key. voltage in the vehicle at 13.5 volts to allow for un- Before entering the Power Supply Mode, the GR8 will test interrupted reprogramming of vehicle computers, the battery to determine if it needs to be charged.
GR8-1200 OEM Chapter 9: Jump Start Chapter 9: Jump Start This charging mode makes high output current Press the NEXT soft key. The BACK soft key returns you to available to boost charge an in-vehicle battery as the Main Menu at the start of the test and to the previous well as assist in starting the engine.
Chapter 10: Manual Charging GR8-1200 OEM Chapter 10: Manual Charging The GR8 charges the battery based on the current Press the NEXT soft key. The BACK soft key returns you to limit or voltage limit, and charge duration that the Main Menu at the start of the test and to the previous you select.
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GR8-1200 OEM Chapter 10: Manual Charging NOTE: The GR8 tests the battery to determine if it is safe to charge. If it detects that the battery is defective, it displays a warning that the battery is unsafe to charge. Press the EXIT soft key to return to the Main Menu.
Chapter 11: Print / View Menu GR8-1200 OEM Chapter 11: Print / View Menu The Print/View Menu enables you to view and print the results of the Battery, System, and Cable Drop Tests before you perform another test and over- write the results in memory.
GR8-1200 OEM Chapter 12: Info Menu Chapter 12: Info Menu The Info Menu will help you view your test data TOTALS BY DECISION and track the usage and history of your GR8. The Totals by battery decision since the last time they were Info menu also allows you to view total history and cleared by ADMIN.
Battery Ground Test. There’s no need to run the engine. The Cable Drop Test uses BATTERY GROUND Midtronics’ conductance technology to send a signal through the circuit at the component under test. The GR8 then STARTER CIRCUIT simultaneously calculates voltage drop on the positive (+) and negative (–) sides of any circuit as well as the total voltage...
GR8-1200 OEM Chapter 13: Cable Drop Test Starter Circuit Alternator Circuit The Starter Circuit Test measures the voltage drop of the The Alternator Circuit Test measures the voltage drop of the starter circuit. alternator circuit. SELECT CIRCUIT: Use the UP/DOWN ARROWS or the nu- SELECT CIRCUIT: Use the UP/DOWN ARROWS or the nu- merical keypad to select STARTER CIRCUIT.
Chapter 13: Cable Drop Test GR8-1200 OEM Other Circuit Test Results Other Circuit This test enables you to measure voltage drop across other components. SELECT CIRCUIT: Use the UP/DOWN ARROWS or the nu- merical keypad to select the OTHER. BATTERY GROUND...
GR8-1200 OEM Chapter 14: Digital Multimeter (DMM) Chapter 14: Digital Multimeter (DMM) oft key To return to the METERS menu, press the END s The GR8’s 8 digital meters make it versatile enough Scope to test everything from a vehicle’s entire electrical...
Chapter 14: Digital Multimeter (DMM) GR8-1200 OEM (requires the optional amp clamp) (requires the optional amp clamp) AC AMP Volts/Amp The DC ammeter measures the magnitude and fl ow of the AC The volts/amp meter simultaneously measures charging current through a circuit during normal operations.
GR8-1200 OEM Chapter 15: Admin Chapter 15: Admin Format This section explains how to use the Admin Util- ity to control password access to the GR8-1200. It Use the UP or DOWN ARROW or press the corresponding also describes functions that clear test totals and numerical key (1 or 2) to move the dot to the option restore settings to factory defaults.
Chapter 15: Admin GR8-1200 OEM Press the NEXT soft key to continue. Use the ARROW keys to select a USER ID as described in step 2 in “Entering A New User ID”. To clear the default characters, press the LEFT ARROW key.
GR8-1200 OEM Chapter 15: Admin To help you edit and center your header, use a pencil to write the information in the template below before entering it into the Battery Diagnostic Station. Header Template Line 1 Line 2 Line 3...
Chapter 15: Admin GR8-1200 OEM To help you edit and center your coupon, use a pencil to write the information in the template below before entering it into the Battery Diagnostic Station. Coupon Template Line 1 Line 2 Line 3...
GR8-1200 OEM Chapter 15: Admin Options Reset Defaults In the OPTIONS section there are four functions that allow you This function allows you to reset Administrative options to to control user access to the Main Menu and Admin / Utility their original settings.
Chapter 15: Admin GR8-1200 OEM User Screen Use the UP or DOWN ARROW key to move to the line you want to edit. This utility allows you to customize screen infor- SCREEN OPTIONS mation. Data may be entered manually or using a data card.
GR8-1200 OEM Chapter 16: Troubleshooting Chapter 16: Troubleshooting he table below will help you troubleshoot test messages. If troubleshooting does not solve the problem, call Midtronics Customer Service at 1.800.776.1995. Table 19: Troubleshooting MESSAGE Option EXPLANATION VOLTAGE OUT OF RANGE! Attention light fl...
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Chapter 16: Troubleshooting GR8-1200 OEM MESSAGE Option EXPLANATION CHARGER ERROR This occurs if the Make sure the charger is turned and the cables are connected. Also bridge cannot talk make sure the Multitasker module is receiving power and is properly IS CHARGER TURNED ON? to the charger.
GR8-1200 OEM Chapter 17: Charger Maintenance Chapter 17: Charger Maintenance Replacing the Paper Roll Attaching the Charger Cables The printer uses thermal paper in a roll with the dimensions The two connectors for the charger cables are located on 2.25 in x 85 ft. (57 mm x 25.9 m). You can purchase replacement the back of the GR8.
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PATENTS The GR8 Battery Diagnostic Station is made in the U.S.A. by Midtronics, Inc. and is protected by one or more of the following U.S. Patents: 4,816,768; 4,825,170; 4,881,038; 4,912,416; 5,572, 136; 5,585,728; 5,592,093; 5,757,192; 5,821,756; 5,831,435; 5,914,605; 6,051,976; 6,091,245; 6,163,156; 6,249,124; 6,304,087; 6,310,481; 6,316,914; 6,323,650; 6,351,102; 6,359,441; 6,363,303; 6,392,414;...
Need help?
Do you have a question about the GR8-1200 OEM and is the answer not in the manual?
Questions and answers
Se me olvido la co trasera de mi gr8 como puedo ponernuna nueva o acceder al dispositivo?
To access or replace the rear cover of a Midtronics GR8-1200 OEM:
1. Insert the screws through the holes in the cover and sheet metal.
2. Tighten the screws securely with a small screwdriver.
3. To remove the cables or cover, reverse the attachment instructions.
This allows you to remove or reattach the rear cover as needed.
This answer is automatically generated