APPENDIX B - SERVICE MENU
Explorer Series Service Manual 65 Ohaus Corporation www.ohaus.com
APPENDIX B - DIAGNOSTIC / SERVICE MENU
This appendix describes the Diagnostic Menu and the limited access Service Menu. From the main
screen touch Menu, scroll down then touch Diagnostics to enter the menu.
B.1 User Accessible Diagnostics
The first three selections can be accessed by the user. The Service Menu is only to be used by
Service Technicians and is discussed in the next section.
Level Bubble Light
To verify proper operation of the illuminated Level Bubble touch the icon and the light should blink. If
the light does not blink verify that the wiring is okay. Check for the evidence of pinched wiring as this
is a likely cause. If the wiring is okay, verify the voltage (3.3 VDC) at the LED connector pins on the
PCBA.
Draft Shield Light (Analytical models)
To verify proper operation of the Draft Shield Light touch the icon and the light should blink. If the
light does not blink verify that the wiring is okay. Check for the evidence of pinched wiring as this is
a likely cause. If the wiring is okay, verify the voltage (5 VDC) at the connection pins on the DS Light
PCBA.
Sensors
This tool is used to verify proper operation of each Touchless Sensor. When operated, each sensor
should light and make a sound. If the sensor is not operating verify the wiring is okay. Check for the
evidence of pinched wiring as this is a likely cause. If the wiring is okay verify that voltage (3.3 VDC)
is reaching the Sensor PCBA, pins 2 and 4.
Service Menu
The Service Menu is intended for use by service personnel only. A password is required to access
this menu, see the next section.
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