gs yuasa GYT250 User manual

Quick start guide
13149 GYT250 Quick Start Guide Instructions.indd 113149 GYT250 Quick Start Guide Instructions.indd 1 10/06/2020 16:5610/06/2020 16:56

1. Overview
The GYT250 can perform warranty, health and stock tests on conventional, EFB, AGM and leisure batteries. It can also
give a comprehensive overview of a vehicle’s starter and charging system health through alternator, starter and earth
checks. Results can be printed using the built-in thermal printer or transferred to a computer via the SD card.
2. Connections & controls
The red positive connection (2) should be attached to the battery’s positive terminal (+). The black negative connection (3)
should be connected to the battery’s negative (-) terminal. The unit will then power up.
1 – Colour LCD display
2 – Red positive (+) connection
3 – Black negative (-) connection
4 – SD card slot
5 – Navigation buttons
6 – ENTER button
7 – BACK button
8 – PRINT button
9 – Printer paper out indicator (GREEN)
10 – Printing in progress indicator (RED)
11 – Thermal printer
13149 GYT250 Quick Start Guide Instructions.indd 213149 GYT250 Quick Start Guide Instructions.indd 2 10/06/2020 16:5610/06/2020 16:56

3. Printer paper installation
1. Open the printer cover and insert a roll of thermal
printer paper
2. Close the cover making sure the thermal paper is held
between the feed rollers
3. When the paper needs replacing the printer paper out
indicator (9) will ash
4. Home screen
When the GYT250 is connected to a battery, the home
screen will be displayed. From here it is possible to start a
test, manage previous results and congure the tester.
5. Settings menu
5.1 Set workshop name & contact details
1. Select Settings > Details
2. Use   keys to select a character, then press
ENTER

3. To move to another line, select navigation key
 
 
then
press ENTER

4. The
 


character will appear, and the cursor can
be moved to next line
5. Select the navigation key again to return to normal
edit mode
6. Once all details have been entered select save icon
then press ENTER 
13149 GYT250 Quick Start Guide Instructions.indd 313149 GYT250 Quick Start Guide Instructions.indd 3 10/06/2020 16:5610/06/2020 16:56

5.2 Set time & date
1. Select Settings > Time/Date
2. Use + to move between entries, then use
+ to set the time and date
3. Press ENTER
 to conrm and exit
5.3 Set sound
1. Select Settings > Sound
2. Press to turn sound OFF or to turn sound ON
3. Press ENTER
 to conrm and exit.
6. Starting a new test
1. To start a new test, rst select
Test from the Home Screen
2. Select the type of vehicle to be tested
3. Select the type of test required
13149 GYT250 Quick Start Guide Instructions.indd 413149 GYT250 Quick Start Guide Instructions.indd 4 10/06/2020 16:5610/06/2020 16:56

7. Battery Test
The following tests help determine battery health during
warranty, in-service or pre-service checks
1. After selecting Battery Test, choose type of battery
test required
Warranty - For testing of batteries presented for warranty
claims
Health Check - Determines the state of health, Voltage &
CCA performance of batteries that have been used on a
vehicle
Stock Check - For battery stock management testing of
new batteries that are in storage prior to being installed
in a vehicle
Note: Depending on the vehicle type selected, not all
battery tests will be available
2. Follow the sequence below to enter battery details
Enter type > Enter test standard >
Set battery rating > Testing starts
3. After testing, the results will be displayed
13149 GYT250 Quick Start Guide Instructions.indd 513149 GYT250 Quick Start Guide Instructions.indd 5 10/06/2020 16:5610/06/2020 16:56

Note: Depending on the test type selected presentation of results will differ
Result / action Note
Battery is OK
No action required
Battery is OK
But a recharge is recommended
Battery is discharged
Re-charge before testing again
Battery is weak
Replacement recommended
Service-related failure (rejected claim
under warranty test)
Bad Cell detected
Replacement recommended
Manufacturing defect (accepted claim
under warranty test)
13149 GYT250 Quick Start Guide Instructions.indd 613149 GYT250 Quick Start Guide Instructions.indd 6 10/06/2020 16:5610/06/2020 16:56

7.1 Print results
1. Press PRINT button (8) then select required
print option
2. If Quick Print is selected, results are printed without
adding a customer reference
3. If Customer Details are selected then a reference
(e.g. vehicle registration) can be added by navigating
the keyboard
13149 GYT250 Quick Start Guide Instructions.indd 713149 GYT250 Quick Start Guide Instructions.indd 7 10/06/2020 16:5610/06/2020 16:56

4. When nished, select the save icon to exit and
results will be printed
8. Starter Test
This test helps determine the condition of the starter
motor and battery during engine cranking. The drop of
battery Voltage during the starting process is measured.
This can indicate if the battery has aged or the starter
motor has a problem.
1. After selecting Starter Test the Voltage trace will be
displayed
2. Start the engine and the results will be automatically
recorded
13149 GYT250 Quick Start Guide Instructions.indd 813149 GYT250 Quick Start Guide Instructions.indd 8 10/06/2020 16:5610/06/2020 16:56

3. After analysis results will be displayed
Result / action
Battery Volt drop is OK
No action required
Battery Volt drop too high
Check battery, starter &
connections
4. Results can now be printed (see section 7.1)
9. Alternator Test
This test conrms if the alternator charging Voltage is
within the correct limits to avoid under or overcharging of
the battery. There are three parts to the test:
• Unloaded (Upper Voltage) check – High engine
revs with accessories OFF
• Loaded (Lower Voltage) check – Low engine revs
with accessories ON
• Diode Ripple check – Idle engine revs with
headlights ON
1. After selecting Alternator Test choose the alternator
type which matches the vehicle. If in doubt choose
Normal. Next generation vehicles with micro-hybrid
technology (including Start-Stop and regenerative
breaking) would typically have a smart alternator.
13149 GYT250 Quick Start Guide Instructions.indd 913149 GYT250 Quick Start Guide Instructions.indd 9 10/06/2020 16:5610/06/2020 16:56

9.1 Unloaded (Upper Voltage) Test
1. Ensure all vehicle accessories are switched OFF
2. Rev the engine to 3000rpm, press ENTER
 then
hold revs for 10 seconds
Press ENTER > Hold for 10 secs
3. The analyser will automatically move to the next step
9.2 Loaded (Lower Voltage) Test
1. Ensure all vehicle accessories are switched ON e.g.
lights, heater, demister
2. Rev the engine to 2000rpm, press ENTER
 then
hold revs for 10 seconds
Press ENTER > Hold for 10 secs
3. The analyser will automatically move to the next step
9.3 Diode Ripple Test
1. Ensure that only the vehicle lights are switched ON
2. Set the engine at idle revs (700-1000rpm), press
ENTER
 then wait for 10 seconds
3. The analyser will automatically move to the next step
13149 GYT250 Quick Start Guide Instructions.indd 1013149 GYT250 Quick Start Guide Instructions.indd 10 10/06/2020 16:5610/06/2020 16:56