Manual- Weighblok Rev 1 4-2-03
9
975 Deerfield Parkway
800-503-9180
Buffalo Grove, IL 60089
847-419-1515
Troubleshooting
If the Weighblok to power up.
1.
Change to new alkaline batteries.
2.
Check to see if AC adapter is plugged in.
If the scale starts but the display shows wrong.
1.
Adjust and Calibrate the Scale.
Bottom plate removal
1.
Remove the two screws from the bottom plate of the Weighblok.. Be careful with the keyboard connection.
2.
Check the inside of the Scale visually. Look for bad cables and connections.
If the Scale shows F1
1.
Check the position of the Calibration Switch.
2.
Reset to normal mode.
Loadcell Connections
Check the Loadcell with a universal voltmeter, see table. The left pin is number 1.
Terminal J1
Description
Colours Loadcell
AG
Colours Loadcell 1042
E+ (1)
Out +5 VDC*
Brown
Green
S+ (2)
In +
Yellow
Red
E- (3)
Out 0 VDC
Green
Black
S- (4)
In -
White
White
1.
Check the excitation voltage (E+ and E-) from the Indicator. Should be 5,0* (+-0,4) VDC.
2.
Check the input to the Indicator (S+ and S-). The output from the Loadcell S+ and S- (pin 2 and 4)
will increase from aprox. 0 to 10 mV analogue to the capacity range (100 or 30 kg). Note S+ is plus
and S- is minus. The polarity is important.
3.
If the input is wrong, <0 mV or > +10 mV with unloaded Scale check the Loadcell. Do have only
E+ and E- connected (or probably an external Power 5 VDC) and checks the output from the
Loadcells direct on the wires. Should be 0 mV to +10 mV depending on the load.
