KERN DBS Service Manual page 56

Reproducibility of weight
measurements is poor. Fluctuation
of display value is large. Di
getting the stability indicator to light
up.
Span error is large.
"ERR.C01" is displayed.
"ERR.C04" is displayed.
Linearity error is large.
Weighted value does not change.
"ERR.005" is displayed.
"ERR.001" is displayed.
"ERR.002" is displayed.
Lid open/close status is not detected.
"ERR.110" is displayed.
Heater does not come ON.
Fan does not rotate.
Lid does not close or requires e
Does not reach temperature
specified during moisture level
56
1)Air flow or vibration e
f f icult
f 2) Stopper plate (U14) is hitting the stabilizer
pin.
3) Force coil assembly (L1) is hi
magnet assembly (U9).
4) Debris is stuck inside the force coil
assembly (L1) or magnet assembly (U9).
5) Defective temperature sensor
6) Damaged OPF (U1)
7) Defective analog board assembly (B3)
8) Defective detector assembly (U11)
9) Calibration weight (or sample) is touching
the main glass.
1) Improper linearity adjustment
2) Damaged OPF (U1)
Corrupt EEPROM data
Temperature sensor for correcting UniBloc
sensor temperature characteristics has failed.
1) Defective limit switch (C6) (broken circuit,
defective connector, or bad connector
connection)
2) Defective limit switch (C6) fastener screw
3) Inadequate right hinge (H13) stroke
4) Defective power board assembly (B4)
5) The DBS was tilted or vibrated with the
lid closed.
1) Defective or expired heater (S5)
2) Defective junction cable (H7)
3) Thermal fuse (H6) is blown or defective.
4) Defective power board assembly (B4)
5) Defective main board assembly (B2)
1) Defective fan motor (C5)
2) Fan motor (C5) broken circuit, defective
connector, or bad connector connection
3) Defective power board assembly (B4)
f f f ort. Debris is obstructing moving parts.
f
f f
1) Defective heater (S5)
2) Defective thermistor (H10)
f f f ects Change the installation location.
f
f f
Specify more stable settings.
Reposition the stopper plate (U14).
t t t i ng the Reattach or replace the force coil
t
assembly (L1).
Remove the debris.
Resolder the temperature sensor to the
detector assembly (U11).
Replace the unit assembly (1).
Replace the analog board assembly
(B3).
Replace the detector assembly
(U11).
Calibrate sensitivity with the heater
cover open. Reduce the sample
height to prevent it from touching the
main glass.
Readjust linearity.
If the error level is 10 d or more,
replace the unit.
Replace the unit assembly (1).
Initialize all NVRAM data, download
NVRAM data, calibrate sensitivity, and
then calibrate temperature.
F/W version up is required, if
version is under 1.0.00.01.
Check sensor soldering.
Check the TAD value.
Replace the limit switch (C6).
Refasten the limit switch (C6).
Readjust right hinge (H13) spacing.
Reposition the limit switch (C6).
Replace the power board assembly
(B4).
Open the lid of DBS, before you tilt or
vibrate the DBS.
Replace the heater (S5).
Replace the junction cable (H7).
Replace the thermal fuse (H6) and the
thermistor (H10).
Replace the power board assembly
(B4).
Replace the main board assembly
(B2).
Replace the fan motor (C5).
Replace the fan motor (C5).
Replace the power board assembly
(B4).
Remove the debris.
Replace the heater (S5).
Replace the thermistor (H10).
DBS-SH-e-1210