High Frequency Generators - Veterinary Systems APR-VET
Operation
OM-0118R0
15
3.1.5
SELF DIAGNOSTIC INDICATORS
ERROR INDICATOR
: Lights when a malfunction is detected in the system,
alerting the operator that one of the following error exists preventing X-ray
exposures. This error indicators are shown in the APR Display or as an Error
code on the kVp Display. (
See Section 3.7
).
•
DOOR OPEN (DOOR)
: Indicates the X-ray room door is open when the
X-ray equipment is in use.
•
GENERATOR OVERLOAD (G.OVL):
Indicates that the exposure has
been interrupted because during exposure has been produced arcing or
bad function on the HV circuitry (X-ray Tube, HV Transformer and/or HV
Cables) or a failure of IGBT module (overheated or defective IGBTs) has
been detected.
It can be also shown making a high power and long exposure with the
X-ray Tube cool (X-ray Tube has not been warmed-up).
•
TUBE OVERLOAD (T.OVL)
: Indicates that the technique selected is
beyond the X-ray Tube ratings or the present conditions of the X-ray Tube
inhibit the exposure (anode overheated). Parameters for next exposure
may be temporally limited by the Generator (change the exposure values
or wait for the X-ray Tube to cool).
Check that heat units available are lower than the calculated for the next
exposure (heat units close to zero). Reduce exposure factors or wait for
the X-ray Tube to cool.
(To display the Heat Units refer to Section 3.5).
•
ROTOR ERROR (ROTOR):
Indicates that the X-ray Tube anode is not
rotating while “
Prep
” is active, then exposures are inhibited.
•
HEAT:
Indicates that the X-ray Tube thermostat / pressurestat is open
due to overheating of the Tube housing (housing is too hot, wait for the
housing to cool) or to a thermostat / pressurestat mal-function (housing
is cool). Heat units may raise to any value.
•
TECHNIQUE ERROR (TECH)
:
If displayed during exposure it means
that:
The exposure has been interrupted by “Security Timer”
because of a failure in the System. Turn Off the Generator and
call Field Service.
This error can also be shown after an APR technique selection to advise
that exposure parameters displayed on the Console are not the values
stored for this APR technique. Exposure parameters are adapted by the
Generator to another enable values.
