Digi-Star EZ3400VL - Manual (Page 28)

Trouble shooting
D3936-GB Rev C EZ3400VL User' s manual 28
TROUBLE SHOOTING
START
YES NO Switch the weighing inicator on?
Is the value displayed on
the weighing indicator
stable?
Bad connection
Check the power supply cable for
bad connections/contacts. Move the
power supply cable.
Bad battery
Replace the battery. A weak battery
may test good if it is tested with no
load on the battery.
Bad power supply cable
Make sure the red wire is connected
to the + (positive side) and the black
wire to the - (negative side).
When using a multimeter to check
the voltage, do you measure
between pin 1 (positive) and pin 2
(negative)?
The meter should show a value
between
10.5 and 14.5 Vdc. If using
a tractor power supply cable, the
black wire is connected to the + and
the white wire to the -.
Bad weighing indicator
Try another weighing indicator;
even a different model or setup
should function.
NO
Put your weight on each
load cell.
Does the weighing indicator
respond to your weight?
YES
The weighing indicator is
probably defective.
Test another weighing
indicator to be sure.
Note: Be aware of electrical
interference that might
affect the weighing
indicator, such as mobile
phones, CB radios, radio
towers, electrical motors
etc. Make sure load cell
cables are not attached to
hydraulic lines or
reservoirs.
Check all J-Box and
load cell cables for
loose contacts, cuts or
pinched, flat spots.
NO YES
Are all values positive?
(negative values indicate
that the load cell concerned
is mounted upside down).
Does the weighing indicator
weigh you approx. the same
over all load cells?
The weighing indicator is probably
not set-up and calibrated correctly.
Check the decal on the bottom of
the weighing indicator. It shows the
type of load cells, for which the
weighing indicator was calibrated.
By pressing the ON key while the
weighing indicator is switched on,
the setup (SETUP) and calibration
number (CAL) will appear
successively on the display.
Ensure these numbers correspond
with the numbers on the decal on
the bottom of the weighing
indicator. Contact your dealer for
additional information.
Repair or replace
the J-Box.
Does the J-Box have a bad connection
or loose wires?
See next page
NO
YES
Check for loose connections.
Watch your indicator display while
moving cables and wires and pressing
on the circuit board inside the J-Box.
You will see if there is a loose
connection or bad solder joint.
Is there moisture
inside the J-Box?
NO
Remove the cover from the J-Box.
NO
YES
YES
YES
YES
Dry out the J-Box
(use a hairdryer).
Check cable strain reliefs
for tightness.
Do cables have drip loops?
Is lid gasket damaged?
If the value is unstable or,
[± RANGE] flashes on the display,
disconnect the J-Box cable from the
weighing indicator.
Is the value still unstable?