TXR 325D, Руководство по обслуживанию

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Standard Frequency Series Generators
Maintenance
8
M-2008-7-15
SECTION 7
TROUBLESHOOTING CHARTS
7.1 ERROR CODE CHART
Models TXR 325 D, TXR 325 M, TXR 425 and TXR 525 SFQ X-Ray Controls come equipped with Self
Diagnostics. Should a problem arise, observe the mAs meter display for one of the following error codes.
ERROR CODE DESCRIPTION
O.L. Indicates – Exceeds Tube Limit
E02 Indicates – KVP over range
E03 Indicates – KVP under range
E04 Indicates – Opening in MA cables or switch
E05 Indicates – Opening in Timing cable or switch
SCR Indicates – Leaky or shorted SCR
TROUBLESHOOTING TECHNIQUE: THREE MAIN INDICATORS MUST BE OBSERVED
HIGH - LOW – NO MA
7.2 TROUBLESHOOTING THE X-RAY CONTROL AND METER CIRCUITS
SYMPTOM MOST COMMON PROBLEM HOW AND WHERE TO TEST
X-Ray Control will not energize No power for X-ray L1, L2
and ground
Check Power feeding X-ray including main panel. Requires
240VAC Nominal. Range 200-278 VAC .
Circuit Breaker Defective With Circuit Breaker in the on position check voltage across
major to minor line strap. Should read: 200-278 VAC
Control Energizes but LED’s are
not lit.
Open fuse or loose fuse
holder A1 or A2 .
With Line to Auto Strapped properly and with the Circuit
Breaker on, check voltage from A1 to A2 . Should be 120-
122 VAC .
No MA Meter Reading Open fuse or lose fuse holder
F6.
With Line to Auto Strapped properly and with the Circuit
Breaker on, check voltage from A1 to F6 . 8 VAC
Defective MA Meter Replace MA Meter, Ribbon Cable Connector or MA
Selector.
kVp Meter Reading not Stable
– Numbers on the kVp Continues
to countdown toward zero.
Open Fuse or loose Fuse
Holder F4 or F5 .
With Line to Auto Strapped properly and with the Circuit
Breaker on, check voltage from A1 to F5 = 24 VAC. For
Fuse 4 check voltage MT-1 to MT-2 = 100 VAC.
Major or Minor Selector
defective.
Be sure that the kilovolt selectors are not stuck between
contacts, but are properly indexed on a contact point. Make
sure ALL contact points on both switches are good.
KVP Meter Compensation
Circuit
There may be an OPEN in the kVp Compensation Resistor,
Compensation Transformer, or K1 – K7 Relays are NOT
ENERGIZING.
Defective Kilovolt Meter Check Kilovolt Meter, it may have a defective part.