Analyzing Bulk Samples - Thermo Scientific NITON XL3t 500 User Manual

Analyzing Bulk
Samples
Thermo Scientific
CAUTION Whenever you turn on your NITON Analyzer after it has been
off for more than 30 minutes, you should measure your check sample to
assure proper operation. If the instrument is not reading properly, you
should re-calibrate your NITON Analyzer's sample analysis electronics
before you start to take readings. When the instrument is turned on after
being off for more than 30 minutes, your NITON analyzer will require a 10
minute warm-up period before the instrument can be calibrated, unless this
10 minute warm-up period is manually overridden.
There are six different methods of operation for taking a sample
measurement, and your analyzer will be configured to use one of those
methods for soil samples, depending on the regulatory requirements of your
locality. These methods are:
• Trigger-Only method. With the Trigger-Only method, you only
need to place the measurement window close to the sample to be
analyzed and pull the trigger for sample analysis to be initiated.
• Trigger-and-Proximity-Sensor method. With the
Trigger-and-Proximity-Sensor method, you must place the
measurement window against the sample to be analyzed to engage
the proximity sensor on the front of the instrument, then pull the
trigger for sample analysis to be initiated.
• Momentary-Trigger-Touch-and-Proximity-Sensor method. With
the Momentary-Trigger-Touch-and-Proximity-Sensor method, you
must place the measurement window against the surface to be
analyzed to engage the proximity sensor on the front of the
instrument, then pull the trigger. The trigger may be released and
the reading will continue until you release the proximity button, or
other criteria (such as Max Time) are reached.
• Trigger-and-Interlock method. With the Trigger-and-Interlock
method, you need to place the measurement window close to the
sample to be analyzed, press and keep pressing the interlock button
at the rear of the instrument with your free hand, then pull the
trigger for sample analysis to be initiated.

Analyzing Bulk Samples

NITON XL3 Analyzer User's Guide 1-9