OHAUS Explorer Balances - Page 24

CHAPTER 2 - DIAGNOSTIC GUIDE
Ohaus Corporation www.ohaus.com 18 Explorer
®
Series Service Manual
Bad load cell
Replace load cell
Cannot calibrate
Calibration Menu locked
Unlock, see User manual
LFT set to ON
Turn LFT off.
Unstable environment- vibration, air
currents or changing temperature
Move balance to suitable location, allow
balance to stabilize its temperature
External Calibration mode- incorrect
calibration masses used
Use correct mass value as shown on the
scale or enter the known mass value as
instructed on the scale.
Incorrect weight reading or poor
repeatability
See Incorrect weight reading and Poor
repeatability
Cannot change
menu settings
Sub-menu locked
Unlock sub-menu
LFT set to on
Turn LFT off
Cannot access a
Mode
Desired Mode not enabled
Enter Main Menu then Application Modes
to set the appropriate mode on.
Cannot access a
Unit
Desired unit not enabled
Enter Main Menu then Weighing Units to
set the appropriate unit on.
RS232, USB or
Ethernet
interface not
working
Balance communications settings do
not match with the settings in the
connected computer.
See User Manual for proper settings
Poor Cable connection
Check cable connection
Defective Interface or cable
Replace
Low Reference
weight
Reference weight is too small
Increase reference weight or continue with
less accurate results.
Invalid Piece
Weight
Parts counting– average piece weight is
too small.
Shows error – returns to re-establish the
APW.
Operation
Timeout
Weight reading not stable
See above - Incorrect weight reading
Busy (tare, zero, printing)
Retry after completion
Pressing“Print”
orcommand“P”
do not work
immediately
RS232, USB or Ethernet interface not
working
see above – RS232, USB or Ethernet
interface not working
Print settings enable the stable print, but
there is unstable environment- vibration,
air currents or changing temperature
Move balance to suitable location, allow
balance to stabilize its temperature; or
set “Main Menu -> Communication ->
RS232/USB/Ethernet -> Print Settings ->
Print Output -> Stable Weight Only” to
OFF
Overload
Weight on pan exceeds capacity
Remove weight from pan
Underload
Pan is removed during weighing
Re-install pan
Over initial zero
range
Pan has load during power on
Remove weight from pan and re-zero.
Under initial zero
range
Pan was removed prior to power on
Install pan and re-zero.