S1 TITAN, T
RACER
5, and CTX User Manual
030.0112.04.0
33 of 67
2.5.
Safety Features
Introduction
The instrument includes a fail-safe electronic control system of primary and secondary interlocks
designed to –
Aid in the safe use of the instrument.
Prevent accidental exposure to radiation.
Prevent the instrument from generating radiation in case of damage.
As with any safety control system, it cannot prevent injury from intentional misuse. Never attempt to
disable or otherwise circumvent a safety control.
Power switch
interlock
A push-button main power switch interlock controls power to all components. The switch must be
activated before any other actions can be initiated. When power is activated, X-ray warning lights
flash and, after a few seconds, the touch screen displays.
Password
Once the instrument initializes, a password is requested. The analyzer will neither operate nor
generate X-rays without a valid password.
X-ray warning
Once the password is successfully entered, an X-ray radiation warning is displayed. To continue, press
and release the trigger.
Proximity
sensor
The proximity sensor detects when an object is within range of the examination window. X-rays can
be generated only if the sensor detects an object.
Not applicable to CTX.
Disabling the
interlock
For some less favorable testing conditions, the proximity sensor interlock may need to be bypassed.
See
Supervisor Manual
, Bruker document 030.0113. Some locales may not allow this.
When the instrument is logged out or powered off, the interlock is
not
automatically re-enabled.
Trigger
interlock
X-rays are generated when the trigger is pressed. When using the manual trigger setting (see
SETTINGS Button
, page 41), the trigger must be continuously squeezed during measurements. When
the trigger is released, X-ray generation stops.
Auxiliary
trigger
In some countries, both hands are required to be on the instrument when X-rays are generated. The
auxiliary trigger, built into each instrument, is part of that two-stage implementation.
Not applicable
to CTX.
Minimum
backscatter
During each measurement, the X-ray count-rate is continuously monitored. If the count-rate drops
below the allowable threshold, as it would in the absence of a sample, X-ray generation discontinues,
minimizing potential exposure.
X-ray warning
lights
When X-rays are generated, red lamps illuminate: S1 Titan - along the instrument’s side and beneath
the screen;
T
RACER
5
- along both sides of the instrument’s rail; CTX - along both sides in the front and
a single light in the back. Lamps incorporate redundant LED elements for increased reliability. If more
than two red LED elements fail, X-rays cannot be generated.
Buzzer
In Canada, when the trigger is pressed, an audible alarm indicates X-rays are being generated.
Automatic log
off
If the analyzer remains idle for more than the time specified in Supervisor Mode (default 5 minutes), it
logs off the user. Upon login, the previous session is restored.
Labels
Warning labels identify the analyzer as radiation producing. The manufacturer’s plate underneath
contains regulatory information. Do not tamper with or remove any labels.
T
RACER
5 hatch
To generate X-rays, the collimator must be installed and the hatch must be securely closed.
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