Scale-Tronix 5002 - Page 29

masts check the mast cable for a firm connection to
the base.
4.60.3 WEIGHT READING TAKES EXCESSIVE
TIME TO DISPLAY
If the platform is in motion the scale will wait for it to
settle before displaying the weight. This can be
caused by excessive patient motion.
Also check that the connecting cable is firmly plugged
into the readout cabinet. Examine the weighing
platform that itis not rubbing against a foreign object.
4.60.4 SCALE DISPLAYS "CAbLE"OR"O-LOAd"
This indicates the scale's internal microcomputer has
received a signal in excess of its expected value. "O-
LOAd" indicates the weight signal is larger than the
maximum value assigned to that particular model
(see specifications on inside front cover). If the
weight value is within the specified range this indicate
a damaged transducer or defective instrument board.
The “CABLE” display indicates a signal outside the
range of the internal a-d converter has been applied,
This is most likely caused by a damaged or
disconnected transducer cable. On those scales with
a mast check the connection to the weighing platform
at its base. Also check the internal connection of the
four wire cable to the "J1 LOAD CELL" connector.
4.60.5 READING DOES NOT CHANGE WHEN
WEIGHT APPLIED
Check that the weight platform is plugged into
the readout. The platform cable, connector or load
cell transducer may be defective. The load cell
transducers resistance can be checked with an
ohmmeter after unplugging from the readout. The
proper resistance values are listed below:
SCALES with gauged-plate load cell {5002, 5102,
6002, 6502):
WIRE COLORS (PIN no.) RESISTANCE
GRN(1)/BLKQYWHTGYRED(4) >10Ma
to scale frame
GRN(1) to BLK(2) 200-2500
WHT(3) to RED(4) 170-1800
SCALES with twin DEBB (6102, 6202, 6702):
WIRE COLORS (PIN no.) RESISTANCE
GRN(1)/BLK(2)WHT(3)/RED(4) >10M0
to scale frame
GRN(1) to BLK(2) 175-2250
WHT(3) to RED(4) 170-1800
SCALES with single point bending beam load cell
(5602):
WIRE COLORS (PIN no.) RESISTANCE
GRN(1)/BLK(2)ANHT(3)Y/RED(4) >10M0
to seale frame
GRN(1) to BLK(2) 175-2250
WHT(3) to RED(4) 170-1802
Consult factory if readings differ from those shown.
NOTE: Ohmmeters will not indicate a change in
resistance of the load cell transducer when weights
are applied to scale. This is due to the extremely
small change in resistance of the strain gauges
employed (<1 ohm) and the fact that the bridge
configuration presents a constant value of resistance
when measured from its terminals.
4.60.6 NON-FUNCTIONING KEY(S)
Check the front panel keyboard for visible
signs of damage (punctures, dents, etc.). Check that
keyboard tail with connector is properly inserted into
the display board.
lf a particular function does not work (example: no
kilogram units) check if that particular function is
turned off in the “SET-UP" mode (see section 3.70)
4.60.7 ERROR MESSAGE DISPLAYED: "E-FAIL”
or "r-FAIL"
This indicates a failure of the internal
5002, 5102, 5602, 6002, 6102, 6202, 6502, 6702 27