Atlas Weather-Ometer Ci3000+, Service Manual, Page: 19 / 24

/ Ci4000 / Ci5000 Weather-Ometer
®
Service Guide Doc. No. 07-7030-00 Rev. 0
42
5.0 TROUBLESHOOTING PROCEDURES
If the xenon lamp in the Ci5000 fails to operate at
higher (2-Sun) irradiance levels, there may be a
malfunction of the 1-Sun or 2-Sun relays, or the
components driving them (Fig. 5.2–9). Additionally,
if the error message “Test Irrad. Not Match with
Filters” appears on the screen at the start of a test,
it indicates that the irradiance level chosen is in
the 2-Sun range and you must recalibrate the lamp
for this irradiance level.
2-Sun irradiance levels are defined as follows:
0.70 W/m 2 or higher @ 340 nm filter
1.40 W/m
2
or higher @ 420 nm filter
75.0 W/m
2
or higher @ 300-400 nm filter
At 1-Sun irradiance levels, the rack rotates at 1
RPM. At 2-Sun levels it rotates at 10 RPM. Relay
K14 switches the input to the rack speed controller.
Conduct the procedure below to determine the
cause of 2-Sun operation failure.
5.2 Xenon Lamp and Irradiance
Control Malfunctions (cont.)
5.2.8 Troubleshooting Procedure – 2-Sun
Irradiance Considerations
1) Program a custom, 2-sun irradiance test with
the parameters shown below.
Test List (Data Panel page 6)
Select an unused Custom test. Press F6, the test
number and Enter three times. Press F2.
Test Criteria (Data Panel page 7)
Total Segments
1
Duration Units Time
Black Sensor BPT
Black Temp. Active Yes
Radiation@filter 340 nm
Chamber Temp. Active No
Segment (Data Panel page 8)
Segment Number
1
Light or Dark Light
Time or Irradiance 30 min.
Irradiance 1.50 W/m 2
Black Temp. 80 °C
Chamber (DB) Temp. 60 °C
Relative Humidity 0 %
Segment (cont.) (Data Panel page 9)
Set sprays to off.
Test List (Data Panel page 6)
Press F8. Press F5, the custom test number and
Enter three times to load the new custom test.
Run/Stop Segment (Data Panel page 3)
Test Duration
0 hours 30 min
2) Press F4 on RUN/STOP page 3 to start the test.
CAUTION: SHOCK HAZARD
In the procedures below, you
must check for voltages at live
electrical terminals. Avoid
contact with component terminals and
wear insulated gloves to prevent electrical
shock.
3) When the Ci5000 is running a test at
2-Sun irradiance level, the rack should be rotating
at 10 RPM. Check rack speed. If it is rotating at 1
RPM, relay K14 or the rack speed control A14 is
malfunctioning (see Section 5.8).
3
4
C
O
I
L
K15
ONE
SUN
RELAY
TB3-11
COIL
K14
RACK
SPEED
RELAY
A14-S2
A14-S1
R2
10K
A14-S3
K14-3 K14-4
K14-9
K14-1 K14-2
TB3-9
K15-2
K15-1
L1
MAIN
REACTOR
C
O
I
L
K4
TWO
SUN
RELAY
3
4
K4-1
K4-2
L3
IGNITOR
L2-2 K3-3
TB6-1
24Vac
TB3-5
TB3-6
TB3-7
PLC3-10
L3-12
TB6-1
K14-11
LOW
HI
PLC3-5
LOW COM
A14
RACK
MOTOR
SPEED
CONTROL
TB3-8
24Vac
N.C. N.C.
TB2-2
PLC3
LOGIC
OUTPUT
MODULE
A8
PLC3
LOGIC
OUTPUT
MODULE
A4
Figure 5.2 – 12 One and Two Sun Circuit Block Diagram