HELP-CENTER
MEGA TESTER V4
Possible causes
1. Empty battery
2. Blown fuse
Actions to diagnose the appliance and rectify the defect
Check the fuse, replace it if necessary, connect the power cable and switch the appliance on again
Possible causes
There is an error in the microprocessor firmware
Actions to diagnose the appliance and rectify the defect
Firmware needs to be updated.
- Download the latest firmware from the company’s homepage: https://opensystem-west.net/product/testing-piezo-injectors-mega-tester-v4/
>> Go to tab “Software & Firmware“
2. The device must be connected to a computer or laptop by means of a cable. You should hear the typical audible tone of the external device connection
3. Run the “Tepi_V0.00xx.exe” and carry out the update
Possible causes
Loss of contact due to transport, vibrations or other mechanical stress
Actions to diagnose the appliance and rectify the defect
Remove the cover of the unit and check that all plugs are properly connected
Select the “Stroke” test and press the “Start” button
The measurement voltage (upper value) changes according to the setting voltage, but deviates from it, check the resistors R300, R156 on the bottom side of the upper board. If the resistance is considerably higher than 50 Ohm, the resistors (size 0805, power 0,125W) have to be replaced.
The measurement voltage has a constant value and does not react to changes in the setting voltage. In this case measure the voltage as shown in the picture (on the upper and lower boards). Find a bad contact and repair it (possibly solder the pins of the connectors).
Please send the equipment to the service center for repair. Do not forget to contact us in advance and provide a copy of the sales invoice for the purchase of the device.
info@opensystem-west.com
+49 152 33 6 99 528
MEGA TESTER V3
Possible causes
The set measurement voltage cannot be reached
Actions to diagnose the appliance and rectify the defect
Remove the housing cover, unscrew the 4 screws fixing the upper board. On the back side of the upper board, find and measure with a multimeter the resistance of the resistor R162. the nominal resistance value should be 100 ohms ± 50 ohms. If the resistance is significantly different (usually higher in case of malfunction), replace the resistor. The enclosure type is SMD 0805. Alternatively, the old resistor can be replaced with two similar resistors with a nominal resistance of 200 ohm each, in parallel (on top of each other).
Possible causes
The set measurement voltage cannot be reached
Actions to diagnose the appliance and rectify the defect
Remove the housing cover, unscrew the 4 screws fixing the upper board. On the back side of the upper board, find and measure with a multimeter the resistance of the resistor R162. the nominal resistance value should be 100 ohms ± 50 ohms. If the resistance is significantly different (usually higher in case of malfunction), replace the resistor. The enclosure type is SMD 0805. Alternatively, the old resistor can be replaced with two similar resistors with a nominal resistance of 200 ohm each, in parallel (on top of each other).
Possible causes
The set measurement voltage cannot be reached
Actions to diagnose the appliance and rectify the defect
Remove the housing cover, unscrew the 4 screws fixing the upper board. On the back side of the upper board, find and measure with a multimeter the resistance of the resistor R162. the nominal resistance value should be 100 ohms ± 50 ohms. If the resistance is significantly different (usually higher in case of malfunction), replace the resistor. The enclosure type is SMD 0805. Alternatively, the old resistor can be replaced with two similar resistors with a nominal resistance of 200 ohm each, in parallel (on top of each other).
Please send the equipment to the service center for repair. Do not forget to contact us in advance and provide a copy of the sales invoice for the purchase of the device.
info@opensystem-west.com
+49 152 33 6 99 528
Possible causes
Transistors Q3 and/or Q22 faulty
Actions to diagnose the appliance and rectify the defect
Replace transistors with new ones as shown in the picture.
