Led Summary Table; Table 21: Power Supply Board Led Summary Table; Table 22: Cpu Board Led Summary Table - Ohmart Vega W-4510 Technical Reference Hardware Manual

LED summary table

LED Description
+6V +6V DC voltage level
to electronics
+24V Not used
Relay Not used
LED Description
Mem Not used
HART Not used
CPU Central processing
unit on CPU board
"heartbeat"
Aux Auxiliary input
frequency signal
indicator
HV Not used
Field Radiation field
indicator
W-4510 Weigh Scale Technical Reference Manual

Table 21: Power supply board LED summary table

Normal condition Error condition
ON OFF—Electronics are not
receiving +6VDC voltage
required for functioning

Table 22: CPU board LED summary table

Normal condition Error condition
N/A N/A
ON N/A
Blinks at rate of LED does not blink. CPU
1time/sec. not functioning.
Blinks if auxiliary None
input present. OFF—
if no auxiliary input
present.
N/A N/A
Cycles in proportion None
to radiation field
intensity at detector.
ON for 10sec. for
each mR/hr, then off
for two seconds.
(Can use LED 5 that
blinks 1time/sec to
time LED 9 for field
indicator.)
Diagnostics and repair
Recommendation
Verify +6V on test points.
Check fuse on Power Supply
board. Check power input
terminals 1, 2.
Recommendation
Check power input. Replace
CPU board.
Check auxiliary input wiring
terminals 11 & 12 with a meter
for frequency signal. Check
auxiliary input equipment.
A 1mR/hr (2,580nC/kg/hr) field
is usually required for a
measurement. Check for closed
source shutter, buildup, and
insulation.
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