Service manual

ECONOMY COUNTING SCALE
15
For the following services, please contact your Xpress representative at www.mt.com/xpress.
ENTERING SERVICE MODE
In the Service Mode, calibration and other system parameter settings can be accessed. In order to enter the
Service Mode momentarily short the contacts of the switch J3 while the unit is powered up. J3 is located on
the upper side of the PCB, where the keypad cable and the main PCB are connected. The normal position
for the J3 jumpers is OFF.
After access of Service Mode, the Wt window displays S1 0. Then assemble the scale to enter set up as
follows.
FUNCTION OF THE KEYS
In the Service Mode, the functions of the keys will be as follows:
Key Function Description
Select
Switches between the parameter 1 and 0
N ext
Confirms the choice and moves forward
Previous
Confirms the choice and steps backward
CONFIGURATIONS
Display Parameter Default
S1 Display mode
0- normal display
1- advanced display
0
S2 Calibration units
0- lb
1- kg
0
S3 GEO code setting
0- not setting
1- Resetting
0
S4 Enter calibration sub-menu
0- no
1- yes
0
S4.1 Calibration mode select
0- full range calibration
1- linearity calibration
0
E Save changes
0- exit without saving
1- save changes
0
WARNING
DISCONNECT ALL POWER TO THIS UNIT
BEFORE INSTALLING, SERVICING, CLEANING,
OR REMOVING THE FUSE. FAILURE TO DO
SO COULD RESULT IN BODILY HARM
AND/OR PROPERTY DAMAGE.
CAUTION
BEFORE CONNECTING OR DISCONNECTING ANY INTERNAL
ELECTRONIC COMPONENTS OR INTERCONNECTING WIRING
BETWEEN ELECTRONIC EQUIPMENT, ALWAYS REMOVE POWER AND
WAIT AT LEAST THIRTY (30) SECONDS BEFORE ANY CONNECTIONS
OR DISCONNECTION’S ARE MADE. FAILURE TO OBSERVE THESE
PRECAUTIONS COULD RESULT IN DAMAGE TO OR DESTRUCTION OF
THE EQUIPMENT, OR BODILY HARM.
SERVICING YOUR SCALE